Jurnal Agroekoteknologi Universitas Sumatera Utara, Mar 1, 2015
The aim of the research was to study the growth and production of shallot by application organic ... more The aim of the research was to study the growth and production of shallot by application organic material in soil with volcanic ash of Sinabung mount. It was conducted at experimental field of the Faculty of Agricultural at University of Sumatera Utara with a height ± 25 above sea level in July to September 2014, using a factorial randomized block design with two factors, first factor rice straw compost (0; 15; 30 g/polybag) and second factor chicken manure fertilizer (0; 15; 30 g/polybag). The parameter observed were plant height, number of tillers, number of leaves, number of bulbs, wet and dry bulbs diameter, wet and dry bulbs weight per sample, wet and dry bulbs weight per plot. The result showed that the treatment of rice straw compost significantly affect to increase plant height 5 WAP, decrease tillers number 5 WAP, increase wet and dry bulbs diameter,increase wet and dry bulbs weight per sample. The treatment of chicken manure fertilizer significantly affect to increase plant height 4-5 WAP, increase wet and dry bulbs diameter. Interaction of both treatment signifantly affect to increase wet and dry bulbs diameter. Key word : growth, organic, shallot, volcanic ash
The Application of Solid and Liquid Organic Fertilizer of Banana Kepok Bark on the Growth and Yie... more The Application of Solid and Liquid Organic Fertilizer of Banana Kepok Bark on the Growth and Yield of Mustard (Brassica juncea L.). The research aimed to know differences in growth response and yield of mustard in various dose of solid and liquid organic fertilizer from banana kepok bark and the interaction of both factors. The research was carried out in the home screen, $JULFXOWXUH ¶V Faculty of North Sumatera University from August to Oktober 2013. The experiment design was Factorial Randomized Block design (FRB) with two factors and three replications. The first factor was the solid organic fertilizer dose consist of four levels are 0 , 30 , 60 and 90 g/plant. The second factor was a liquid organic fertilizer dose are 0 , 25 , 45 and 65 ml/plant/application. The results showed that the solid organic fertilizer give significant effect on lower the plant height 15 days after transplanting and the total of leaf area on 30 days after transplanting. The liquid organic fertilizer significant effect on lower plant height 11 , 19 , 23 , and 27 days after transplanting, dry weight of plant on 30 days after transplanting, the plant yield per sample and yield per plot on 40 days after transplanting. The interaction of both significantly on parameter plant height 7 days after transplanting and the best result treatment is solid organic fertilizer 30 g/plant without liquid organic fertilizer.
Jurnal Agroekoteknologi Universitas Sumatera Utara, Mar 2, 2013
The Response of Growth and Yield of Four Soybean Varieties (Glycine max L.) to The Shading Level... more The Response of Growth and Yield of Four Soybean Varieties (Glycine max L.) to The Shading Levels,The aim of the study was to obtain the effect of soybean seed size on the shading levels for growth and yield of soybean (Glycine max L.) The study was conducted at Tanjung Selamat village at 57 metres above sea level, from April to July 2012. The split plot design was used two treatment, namely shading level a N0 (no shading), N1 (shading 20%), N2 (40% shading), and N3 (60% shading) as main plot and four varieties V1 (Anjasmoro), V2 (Burangrang), V3 (Wilis), and V4 (Rinjani) as sub plot. The results showed that shading level significantly affected germination percentage, plant height 2-5 Weeks After Planted, number of branches, number of chlorophyll, total leaf area, number of fill pods, and production per twelve plants. The soybean varieties significantly affected plant height ages 2-5 Weeks After Planted, number of chlorophyll, number of branches, flower initiation, number of fill pods, production per twelve plants, and weight of 100 seeds. Interaction of two treatments significantly affected production per twelve plants. Keywords: soybean, shade, and varieties
Jurnal Agroekoteknologi Universitas Sumatera Utara, Jan 13, 2014
Response growth of soybean by cutting and giving empty fruit bunches of oil palm compost inshaded... more Response growth of soybean by cutting and giving empty fruit bunches of oil palm compost inshaded area.Using of shaded area for soybean plantation faced trouble such yield decreasing.For that purpose cutting and giving empty fruit bunches of oil palm (EFBOP) compost aimed toincrease growth of soybean in shaded area. This research was conducted at experimental field ofFakultas Pertanian USU in January-April 2013 using factorial randomized block design with twofactor, i.e. time of cutting (no cutting, cutting in V5, cutting in R1) and dose of EFBOP compost(0, 10, 20 and 30 ton per ha). Parameter observed were plant height, summarize of leaf area, stemdiameter, and shoot root ratio. The result showed that cutting significantly decreased plant heightbut increase all parameter observed. Dose of EFBOP compost significantly increased summarize ofleaf area and stem diameter. The interaction of two factor significantly increased summarize of leafarea. The best result were showed by cutting in V5 and giving 30 ton per ha EFBOP compost.Keywords : cutting, EFBOP compost, shaded area, soybean.
Jurnal Agroekoteknologi Universitas Sumatera Utara, Dec 2, 2016
ABSTRACT The purpose of research is to find out the growth and production of hybrid corn at vari... more ABSTRACT The purpose of research is to find out the growth and production of hybrid corn at various manure cow mixture and N, P, K, Mg. This research was conducted at Tanjung Anom Village from October 2015 until January 2016. This research used non factorial randomized design, Application of manure cow mixture and N, P, K, Mg significant effect to plant height 6, 7 WAP and stem diameter. Application of manure cow mixture and N, P, K, Mg was not significant effect to leaf area, number of rows per cob, cob diameter, cob length, dry root weight, dry seeds weight per sample, dry 100 seeds weight, production per plot, production per hectare. The best application of manure cow mixture (5 ton/ha) + N (300 kg urea/ha) + K (120 kg KCl/ha) + Mg (400 kg Dolomit/ha) was 9,20 ton per hectare. Keywords : cows manure, hybrid corn, N, P, K, Mg ABSTRAK Penelitian ini bertujuan untuk mengetahui pertumbuhan dan produksi jagung hibrida pada berbagai campuran pupuk sandang sapi dan N, P, K, Mg. Penelitian dilakukan di lahan masyarakat di Desa Tanjung Anom pada Oktober 2015 sampai Januari 2016. Penelitian ini menggunakan Rancangan Acak Kelompok Non Faktorial. Perlakuan campuran pupuk kandang sapi dan N, P, K, Mg memberikan pengaruh nyata terhadap tinggi tanaman 6, 7 MST dan diameter batang. Perlakuan campuran pupuk kandang sapi N, P, K, Mg berpengaruh tidak nyata terhadap luas daun, jumlah baris per tongkol, diameter tongkol, panjang tongkol, bobot kering akar, bobot biji kering per sampel, bobot kering 100 biji, produksi per plot dan produksi per hektar. Perlakuan campuran pupuk kandang sapi dan N, P, K, Mg terbaik pada perlakuan pupuk kandang sapi (5 ton/ha) + N (300 kg urea/ha) + K (120 kg KCl/ha) + Mg (400 kg Dolomit/ha) yakni menghasilkan produksi 9,20 ton per hektar. Kata kunci: jagung hibrida, N, P, K, Mg, pupuk kandang sapi
The of a weed of immature oil palm on peat area is generally dominated by ferns as Stenochlaena p... more The of a weed of immature oil palm on peat area is generally dominated by ferns as Stenochlaena palustris and Biserrata nephrolepis. Herbicide used to control ferns on peat is such limited. This research aimed to evaluate the bioefficacy of saflufenacil alone and combination with other herbicide (glifosat, glufosinat, paraquat, metsulfuron methyl) on peat land. This research is used randomized complete block design non factorial with there were 10 different herbicide treatment including paraquat (1500 g a.i.ha-1), glufosinat (3500 g a.i.ha-1), glifosat (1500 g a.i.ha-1), saflufenacil (75 g a.i.ha-1), saflufenacil (60 g a.i.ha-1) + paraquat (1500 g a.i.ha-1), saflufenacil (75 g a.i.ha-1) + glifosat (1500 g a.i.ha-1), saflufenacil (75 g a.i.ha-1) + glufosinat (1500 g a.i.ha-1), saflufenacil (75 g a.i.ha-1) + metil metsufuron (75 g a.i.ha-1), saflufenacil (75 g a.i.ha-1) + (paraquat 1500 g a.i.ha-1) and without control. The highest percentage (88,1%) of weed control visually is caused by saflufenacil 75 g a.i.ha-1 + paraquat 1500 g a.i.ha-1 whereas the lowest (50,1%) is due to saflufenacil 75 g a.i.ha-1. Similarly the highest mortality of Stenochlaena palustris (86,94%) is caused by saflufenacil 75 g a.i.ha-1 + paraquat 1500 g a.i.ha-1. The highest mortality of Nephrolepis biserrata (74,07%) is due to saflufenacil 75 g a.i.ha-1 + metil metsulfuron 75 g a.i.ha-1 .
Increasing human awareness of environmental issues, the use of synthetic fertilizers will be mini... more Increasing human awareness of environmental issues, the use of synthetic fertilizers will be minimized and increased to use biofertilizers and fertilizers organic. This study aimed to determine the effect of the aplication of Azotobacter chroococcum on the growth of two oil palm varieties in ultisol soil at pre nursery. This research was conducted on the experimental field of the Faculty of Agriculture, Universitas Sumatera Utara with altitude + 32 m asl from May to August 2018. The experimental method used was factorial Randomized Block Design (RBD) with 2 factors and 3 replications, the first factor being coconut varieties palm (D x P Yangambie, D x P Simalungun) and the second factor is the dose of Azotobacter chroococcum / plant (0, 20, 40, 60 ml / seed). The results showed that the aplication of Azotobacter chroococum significantly increased the height, weight of fresh shoot, and weight of dry shoot and unsignificantly increase the number of leaves, total leaf area, weight of fresh root, and weight of dry root. The use of two oil palm varieties and interactions unsignificantly to all observation variables.
The of a weed of immature oil palm on peat area is generally dominated by ferns as Stenochlaena p... more The of a weed of immature oil palm on peat area is generally dominated by ferns as Stenochlaena palustris and Biserrata nephrolepis . Herbicide used to control ferns on peat is such limited. This research aimed to evaluate the bioefficacy of saflufenacil alone and combination with other herbicide ( glifosat, glufosinat, paraquat, metsulfuron methyl ) on peat land. This research is used randomized complete block design non factorial with there were 10 different herbicide treatment including paraquat (1500 g a.i.ha -1 ), glufosinat (3500 g a.i.ha -1 ), glifosat ( 1500 g a.i.ha -1 ), saflufenacil (75 g a.i.ha -1 ), saflufenacil (60 g a.i.ha -1 ) + paraquat (1500 g a.i.ha -1 ), saflufenacil (75 g a.i.ha -1 ) + glifosat (1500 g a.i.ha -1 ), saflufenacil (75 g a.i.ha -1 ) + glufosinat (1500 g a.i.ha -1 ), saflufenacil (75 g a.i.ha -1 ) + metil metsufuron (75 g a.i.ha -1 ), saflufenacil (75 g a.i.ha -1 ) + ( paraquat 1500 g a.i.ha -1 ) and without...
Increased soybean yields have a meaning in the food industry. The expansion of planting area is o... more Increased soybean yields have a meaning in the food industry. The expansion of planting area is one of extensification effort of soybean. Soybean planted on palm oil productive interrow is an alternative to increasing productivity. Soybean responsed plants to light low is the changed in morphology and yield. The objective of the research was to studied growth and yield of soybean varieties on differences light intensity. This research used Factorial Split Plot Design with 3 replications. The main plot were: differences light intensity 30% and 50% and sub plot were: 4 soybean varieties (Grobogan, Anjasmoro, Dena 1, Wilis). This research conducted Deli Serdang district, North Sumatera. The effect of treatment differenes light intensity was not significant on plant height, stem diameter, leaf area index, productive brances, and dry weight of seed. Each of the varieties gave different responses to the plant height and productive branches. The differences light intensity treatment on the...
The aim of this research was aplication guano on mung bean which hope to can increase the growth ... more The aim of this research was aplication guano on mung bean which hope to can increase the growth and production. This research was conducted at experimental field of Agriculture Faculty USU in JuliSeptember 2014 using factorial randomized block design with two factor, i.e. types of varieties (betet and walet) and guano (none; 200; 400 and 600 kg/ha). Parameter observed were relative growth rate and dry weight of seeds per sample. The result showed that varieties and guano application significantly affect the parameters of relative growth rate in the 10-21 day after planted (DAP). The interaction of two factor significantly affect on parameters dry weight of seeds per sample. However application of guano on mung bean no significant effect the parameters crop growth rate, days to flowering, days to harvesting, number of seed per sample, weight of 1000 seed and seed production per plot.
Okra has potential to be horticulture development because it has a high economic value. One of al... more Okra has potential to be horticulture development because it has a high economic value. One of alternative to cultivate vegetable crop is using organic fertilizer. The organic fertilizer that can be used in okra cultivation is Bio-slurry of cow. Bio-slurry is organic fertilizer made from cow feces and water. The process of making this bio-slurry fertilizer through anaerobic in closed room. This organic fertilizer is able to neutralize acid soil and increase humus approximately 10-12%. The purpose of this study was to determine the dose of Bio-slurry on growth and yield of okra. This study was conducted at Tuntungan district on May to August 2017. This research used non-factorial randomized block design with five doses of Bio-slurry treatment: 0, 10, 20, 30 and 40 ton/ha. The results showed that Bio-slurry treatment not significant effect on stem diameter, shoot dry weight and root shoot ratio. Bio-slurry treatment increase the fruit length. Okra berpotensi untuk dikembangkan karena ...
Penelitian ini bertujuan untuk mendapatkan dosis bokashi dan frekuensi pembumbunan yang dapat men... more Penelitian ini bertujuan untuk mendapatkan dosis bokashi dan frekuensi pembumbunan yang dapat meningkatkan pertumbuhan dan produksi ubi jalar. Penelitian dilaksanakan di Desa Tanjung Anom, Medan Sunggal pada Oktober 2015 sampai Januari 2016. Metode penelitian menggunakan rancangan acak kelompok faktorial dengan dua faktor yaitu pupuk bokashi (0, 5, 10, 15 ton/ha) dan frekuensi pembumbunan (2, 3 dan 4 kali). Parameter yang diamati adalah pertambahan panjang tanaman per sampel, jumlah umbi per sampel, panjang umbi per sampel, diameter umbi per sampel, bobot umbi per sampel, bobot umbi per plot, bobot biomassa tanaman per sampel, rataan bobot umbi dan indeks panen. Hasil penelitian menunjukkan dosis pupuk bokashi berpengaruh nyata meningkatkan bobot umbi per sampel. Frekuensi pembumbunan berpengaruh nyata meningkatkan diameter umbi per sampel. Interaksi antara dosis pupuk bokashi dan frekuensi pembumbunan berpengaruh tidak nyata terhadap seluruh parameter.
Proceedings of the International Conference on Natural Resources and Technology, 2019
Drought stress is a major problem in crop production worldwide. The unavailability of groundwater... more Drought stress is a major problem in crop production worldwide. The unavailability of groundwater and erratic climate change causes a lack of water for plants. Efforts that can be made to maintain sweet potato production in drought conditions are by planting genotypes that are tolerant of drought stress. This research aim was to determine the growth and production and also to analyze the physiological characters of several sweet potatoes genotypes on various watering level. The observed parameters were chlorophyll a, b and total and also relative water content at two months and three months after planting (MAP). The results showed that sweet potato genotypes had a different response to the level of watering. The response of each sweet potato genotype was significantly different in the parameters of chlorophyll a, b and total chlorophyll in the third month and the relative water content at 2 MAP. The Binjai accession genotype had the highest chlorophyll a, b and total chlorophyll con...
The aim of this research was to know growth response and production of some sorghum varieties to ... more The aim of this research was to know growth response and production of some sorghum varieties to the addition of tithonia compost. The research was held from July - November 2014, used randomized block design with three factors addition of tithonia compost (0, 10, and 20 ton/ha) and two varieties (Kawali and Numbu). Parameters measured were plant height,the number of leaves , flowering time, weight of panicle seed per sample, weight of panicle seed per plot, yield per sample, yield per plot, and 1000 grains weight. The result showed that compost doesn’t affected significantly on all of parameters. Varieties affected significantly on plant height, the number of leaves, flowering time, yield per sample, yield per plot, and 1000 grains weight. There were not any interaction between compost and variety on all parameters. The best result was found in the combination of 10 kg tithonia compost and numbu variety.Keywords: , tithonia, variety, compost, sorghum.
Climate change is a serious threat to the agricultural sector, and it is one of the causes of dro... more Climate change is a serious threat to the agricultural sector, and it is one of the causes of drought as a major environmental stress factor that affects the growth and development of plants. Drought stress in soybean as one of the food crops of protein sources, will have a serious impact on changes in plant growt and yield, , physiological and biochemical aspects of plant cell damage due to oxidative stress caused by increased free radical accumulation in the form of reactive oxygen species in plants. One approach for improving the tolerance of oxidative stress in soybean under drought stress is the application of exogenous antioxidants. The aim of the research was to investigate the effect of foliar application of exogenous antioxidant on production and physiological characters of soybean under drought stress. The research used a factorial randomised block design with 2 factors and 3 replications. The first factor was drought stress treatment, namely 80 %, 60 % and 40 % of field c...
Using of saline land to grow up soybean has constraints such yield decreasing. By using ofsaline ... more Using of saline land to grow up soybean has constraints such yield decreasing. By using ofsaline tolerant soybean, using ascorbate acid, and inoculation of mychorrizha vesicular arbuscular(MVA) aimed to increasing growth and yield of soybean in saline land.This research was conductedat Kecamatan Percut Sei Tuan Kabupaten Deli Serdang in Februari – Mei 2013, using split split plotdesign with three factors, i.e. variety of saline tolerant soybean (Grobogan no selection andGrobogan F4 selection), giving of ascorbate acid (0 dan 500 ppm) and MVA isolate (MVA type 1,type 2, type 3, type 4 and type 5). Parameter observed were plant height, number of leaves, numberof productive branches, production per plant.The result of the research showed that using of salinetolerant soybean significantly increase all parameters observed. Giving of ascorbate acidsignificantly increase number of productive branches. Inoculation of MVA significantly effect allparameters observed. Interaction between varie...
IOP Conference Series: Earth and Environmental Science, 2020
Magnesium is a very important nutrient for the formation of chlorophyll and affects the density o... more Magnesium is a very important nutrient for the formation of chlorophyll and affects the density of stomata. The aim of the research was to evaluate the role of magnesium in the formation of chlorophyll and stomatal density. The study was conducted in Deli Tua, Deli Serdang Regency, Sumatera Utara from May to August 2019. The experimental design used was a factorial randomized block design. As the first factor, soybean varieties consist of Demas, Devon-1, Anjasmoro, Dering-1. The second factor is dose of magnesium applied consisting of 0; 100; 200 and 300 kg MgSO4/ha. The research result indicated that the highest total chlorophyll was found in Dering-1 compared to other varieties. The highest of stomatal density was found in Demas variety. The highest of chlorophyll total was found in the treatment of 100 kg MgSO4/ha on Dering-1 variety, while the highest stomatal density was found in the control treatment (0 kg MgSO4/ha) on Demas variety.
IOP Conference Series: Earth and Environmental Science, 2020
Water shortage is an environmental stress that affects the growth, quantity and quality of sweet ... more Water shortage is an environmental stress that affects the growth, quantity and quality of sweet potato production. The study objective was to analyse the effect of drought stress on the quantity and quality of orange-fleshed sweet potato. Field research has been carried out in April to July 2019 in the greenhouse. This research used a randomized block design with two factors, the first factor was sweet potato cultivars (Beta-1 variety, Perbaungan cultivar, Cengkeh Turi cultivar and Tanah Seribu cultivar) and the second factor was drought stress with different watering level namely severe drought (watered until 1 month and until 2 months with 10 days interval, respectively) and control (watered until 4 months with 10 days interval). The results showed that the orange-fleshed sweet potato cultivars produced significantly different average tuber weights, the number of tubers, beta carotene content, starch content and tuber moisture content were not significantly different. Drought str...
Jurnal Agroekoteknologi Universitas Sumatera Utara, Mar 1, 2015
The aim of the research was to study the growth and production of shallot by application organic ... more The aim of the research was to study the growth and production of shallot by application organic material in soil with volcanic ash of Sinabung mount. It was conducted at experimental field of the Faculty of Agricultural at University of Sumatera Utara with a height ± 25 above sea level in July to September 2014, using a factorial randomized block design with two factors, first factor rice straw compost (0; 15; 30 g/polybag) and second factor chicken manure fertilizer (0; 15; 30 g/polybag). The parameter observed were plant height, number of tillers, number of leaves, number of bulbs, wet and dry bulbs diameter, wet and dry bulbs weight per sample, wet and dry bulbs weight per plot. The result showed that the treatment of rice straw compost significantly affect to increase plant height 5 WAP, decrease tillers number 5 WAP, increase wet and dry bulbs diameter,increase wet and dry bulbs weight per sample. The treatment of chicken manure fertilizer significantly affect to increase plant height 4-5 WAP, increase wet and dry bulbs diameter. Interaction of both treatment signifantly affect to increase wet and dry bulbs diameter. Key word : growth, organic, shallot, volcanic ash
The Application of Solid and Liquid Organic Fertilizer of Banana Kepok Bark on the Growth and Yie... more The Application of Solid and Liquid Organic Fertilizer of Banana Kepok Bark on the Growth and Yield of Mustard (Brassica juncea L.). The research aimed to know differences in growth response and yield of mustard in various dose of solid and liquid organic fertilizer from banana kepok bark and the interaction of both factors. The research was carried out in the home screen, $JULFXOWXUH ¶V Faculty of North Sumatera University from August to Oktober 2013. The experiment design was Factorial Randomized Block design (FRB) with two factors and three replications. The first factor was the solid organic fertilizer dose consist of four levels are 0 , 30 , 60 and 90 g/plant. The second factor was a liquid organic fertilizer dose are 0 , 25 , 45 and 65 ml/plant/application. The results showed that the solid organic fertilizer give significant effect on lower the plant height 15 days after transplanting and the total of leaf area on 30 days after transplanting. The liquid organic fertilizer significant effect on lower plant height 11 , 19 , 23 , and 27 days after transplanting, dry weight of plant on 30 days after transplanting, the plant yield per sample and yield per plot on 40 days after transplanting. The interaction of both significantly on parameter plant height 7 days after transplanting and the best result treatment is solid organic fertilizer 30 g/plant without liquid organic fertilizer.
Jurnal Agroekoteknologi Universitas Sumatera Utara, Mar 2, 2013
The Response of Growth and Yield of Four Soybean Varieties (Glycine max L.) to The Shading Level... more The Response of Growth and Yield of Four Soybean Varieties (Glycine max L.) to The Shading Levels,The aim of the study was to obtain the effect of soybean seed size on the shading levels for growth and yield of soybean (Glycine max L.) The study was conducted at Tanjung Selamat village at 57 metres above sea level, from April to July 2012. The split plot design was used two treatment, namely shading level a N0 (no shading), N1 (shading 20%), N2 (40% shading), and N3 (60% shading) as main plot and four varieties V1 (Anjasmoro), V2 (Burangrang), V3 (Wilis), and V4 (Rinjani) as sub plot. The results showed that shading level significantly affected germination percentage, plant height 2-5 Weeks After Planted, number of branches, number of chlorophyll, total leaf area, number of fill pods, and production per twelve plants. The soybean varieties significantly affected plant height ages 2-5 Weeks After Planted, number of chlorophyll, number of branches, flower initiation, number of fill pods, production per twelve plants, and weight of 100 seeds. Interaction of two treatments significantly affected production per twelve plants. Keywords: soybean, shade, and varieties
Jurnal Agroekoteknologi Universitas Sumatera Utara, Jan 13, 2014
Response growth of soybean by cutting and giving empty fruit bunches of oil palm compost inshaded... more Response growth of soybean by cutting and giving empty fruit bunches of oil palm compost inshaded area.Using of shaded area for soybean plantation faced trouble such yield decreasing.For that purpose cutting and giving empty fruit bunches of oil palm (EFBOP) compost aimed toincrease growth of soybean in shaded area. This research was conducted at experimental field ofFakultas Pertanian USU in January-April 2013 using factorial randomized block design with twofactor, i.e. time of cutting (no cutting, cutting in V5, cutting in R1) and dose of EFBOP compost(0, 10, 20 and 30 ton per ha). Parameter observed were plant height, summarize of leaf area, stemdiameter, and shoot root ratio. The result showed that cutting significantly decreased plant heightbut increase all parameter observed. Dose of EFBOP compost significantly increased summarize ofleaf area and stem diameter. The interaction of two factor significantly increased summarize of leafarea. The best result were showed by cutting in V5 and giving 30 ton per ha EFBOP compost.Keywords : cutting, EFBOP compost, shaded area, soybean.
Jurnal Agroekoteknologi Universitas Sumatera Utara, Dec 2, 2016
ABSTRACT The purpose of research is to find out the growth and production of hybrid corn at vari... more ABSTRACT The purpose of research is to find out the growth and production of hybrid corn at various manure cow mixture and N, P, K, Mg. This research was conducted at Tanjung Anom Village from October 2015 until January 2016. This research used non factorial randomized design, Application of manure cow mixture and N, P, K, Mg significant effect to plant height 6, 7 WAP and stem diameter. Application of manure cow mixture and N, P, K, Mg was not significant effect to leaf area, number of rows per cob, cob diameter, cob length, dry root weight, dry seeds weight per sample, dry 100 seeds weight, production per plot, production per hectare. The best application of manure cow mixture (5 ton/ha) + N (300 kg urea/ha) + K (120 kg KCl/ha) + Mg (400 kg Dolomit/ha) was 9,20 ton per hectare. Keywords : cows manure, hybrid corn, N, P, K, Mg ABSTRAK Penelitian ini bertujuan untuk mengetahui pertumbuhan dan produksi jagung hibrida pada berbagai campuran pupuk sandang sapi dan N, P, K, Mg. Penelitian dilakukan di lahan masyarakat di Desa Tanjung Anom pada Oktober 2015 sampai Januari 2016. Penelitian ini menggunakan Rancangan Acak Kelompok Non Faktorial. Perlakuan campuran pupuk kandang sapi dan N, P, K, Mg memberikan pengaruh nyata terhadap tinggi tanaman 6, 7 MST dan diameter batang. Perlakuan campuran pupuk kandang sapi N, P, K, Mg berpengaruh tidak nyata terhadap luas daun, jumlah baris per tongkol, diameter tongkol, panjang tongkol, bobot kering akar, bobot biji kering per sampel, bobot kering 100 biji, produksi per plot dan produksi per hektar. Perlakuan campuran pupuk kandang sapi dan N, P, K, Mg terbaik pada perlakuan pupuk kandang sapi (5 ton/ha) + N (300 kg urea/ha) + K (120 kg KCl/ha) + Mg (400 kg Dolomit/ha) yakni menghasilkan produksi 9,20 ton per hektar. Kata kunci: jagung hibrida, N, P, K, Mg, pupuk kandang sapi
The of a weed of immature oil palm on peat area is generally dominated by ferns as Stenochlaena p... more The of a weed of immature oil palm on peat area is generally dominated by ferns as Stenochlaena palustris and Biserrata nephrolepis. Herbicide used to control ferns on peat is such limited. This research aimed to evaluate the bioefficacy of saflufenacil alone and combination with other herbicide (glifosat, glufosinat, paraquat, metsulfuron methyl) on peat land. This research is used randomized complete block design non factorial with there were 10 different herbicide treatment including paraquat (1500 g a.i.ha-1), glufosinat (3500 g a.i.ha-1), glifosat (1500 g a.i.ha-1), saflufenacil (75 g a.i.ha-1), saflufenacil (60 g a.i.ha-1) + paraquat (1500 g a.i.ha-1), saflufenacil (75 g a.i.ha-1) + glifosat (1500 g a.i.ha-1), saflufenacil (75 g a.i.ha-1) + glufosinat (1500 g a.i.ha-1), saflufenacil (75 g a.i.ha-1) + metil metsufuron (75 g a.i.ha-1), saflufenacil (75 g a.i.ha-1) + (paraquat 1500 g a.i.ha-1) and without control. The highest percentage (88,1%) of weed control visually is caused by saflufenacil 75 g a.i.ha-1 + paraquat 1500 g a.i.ha-1 whereas the lowest (50,1%) is due to saflufenacil 75 g a.i.ha-1. Similarly the highest mortality of Stenochlaena palustris (86,94%) is caused by saflufenacil 75 g a.i.ha-1 + paraquat 1500 g a.i.ha-1. The highest mortality of Nephrolepis biserrata (74,07%) is due to saflufenacil 75 g a.i.ha-1 + metil metsulfuron 75 g a.i.ha-1 .
Increasing human awareness of environmental issues, the use of synthetic fertilizers will be mini... more Increasing human awareness of environmental issues, the use of synthetic fertilizers will be minimized and increased to use biofertilizers and fertilizers organic. This study aimed to determine the effect of the aplication of Azotobacter chroococcum on the growth of two oil palm varieties in ultisol soil at pre nursery. This research was conducted on the experimental field of the Faculty of Agriculture, Universitas Sumatera Utara with altitude + 32 m asl from May to August 2018. The experimental method used was factorial Randomized Block Design (RBD) with 2 factors and 3 replications, the first factor being coconut varieties palm (D x P Yangambie, D x P Simalungun) and the second factor is the dose of Azotobacter chroococcum / plant (0, 20, 40, 60 ml / seed). The results showed that the aplication of Azotobacter chroococum significantly increased the height, weight of fresh shoot, and weight of dry shoot and unsignificantly increase the number of leaves, total leaf area, weight of fresh root, and weight of dry root. The use of two oil palm varieties and interactions unsignificantly to all observation variables.
The of a weed of immature oil palm on peat area is generally dominated by ferns as Stenochlaena p... more The of a weed of immature oil palm on peat area is generally dominated by ferns as Stenochlaena palustris and Biserrata nephrolepis . Herbicide used to control ferns on peat is such limited. This research aimed to evaluate the bioefficacy of saflufenacil alone and combination with other herbicide ( glifosat, glufosinat, paraquat, metsulfuron methyl ) on peat land. This research is used randomized complete block design non factorial with there were 10 different herbicide treatment including paraquat (1500 g a.i.ha -1 ), glufosinat (3500 g a.i.ha -1 ), glifosat ( 1500 g a.i.ha -1 ), saflufenacil (75 g a.i.ha -1 ), saflufenacil (60 g a.i.ha -1 ) + paraquat (1500 g a.i.ha -1 ), saflufenacil (75 g a.i.ha -1 ) + glifosat (1500 g a.i.ha -1 ), saflufenacil (75 g a.i.ha -1 ) + glufosinat (1500 g a.i.ha -1 ), saflufenacil (75 g a.i.ha -1 ) + metil metsufuron (75 g a.i.ha -1 ), saflufenacil (75 g a.i.ha -1 ) + ( paraquat 1500 g a.i.ha -1 ) and without...
Increased soybean yields have a meaning in the food industry. The expansion of planting area is o... more Increased soybean yields have a meaning in the food industry. The expansion of planting area is one of extensification effort of soybean. Soybean planted on palm oil productive interrow is an alternative to increasing productivity. Soybean responsed plants to light low is the changed in morphology and yield. The objective of the research was to studied growth and yield of soybean varieties on differences light intensity. This research used Factorial Split Plot Design with 3 replications. The main plot were: differences light intensity 30% and 50% and sub plot were: 4 soybean varieties (Grobogan, Anjasmoro, Dena 1, Wilis). This research conducted Deli Serdang district, North Sumatera. The effect of treatment differenes light intensity was not significant on plant height, stem diameter, leaf area index, productive brances, and dry weight of seed. Each of the varieties gave different responses to the plant height and productive branches. The differences light intensity treatment on the...
The aim of this research was aplication guano on mung bean which hope to can increase the growth ... more The aim of this research was aplication guano on mung bean which hope to can increase the growth and production. This research was conducted at experimental field of Agriculture Faculty USU in JuliSeptember 2014 using factorial randomized block design with two factor, i.e. types of varieties (betet and walet) and guano (none; 200; 400 and 600 kg/ha). Parameter observed were relative growth rate and dry weight of seeds per sample. The result showed that varieties and guano application significantly affect the parameters of relative growth rate in the 10-21 day after planted (DAP). The interaction of two factor significantly affect on parameters dry weight of seeds per sample. However application of guano on mung bean no significant effect the parameters crop growth rate, days to flowering, days to harvesting, number of seed per sample, weight of 1000 seed and seed production per plot.
Okra has potential to be horticulture development because it has a high economic value. One of al... more Okra has potential to be horticulture development because it has a high economic value. One of alternative to cultivate vegetable crop is using organic fertilizer. The organic fertilizer that can be used in okra cultivation is Bio-slurry of cow. Bio-slurry is organic fertilizer made from cow feces and water. The process of making this bio-slurry fertilizer through anaerobic in closed room. This organic fertilizer is able to neutralize acid soil and increase humus approximately 10-12%. The purpose of this study was to determine the dose of Bio-slurry on growth and yield of okra. This study was conducted at Tuntungan district on May to August 2017. This research used non-factorial randomized block design with five doses of Bio-slurry treatment: 0, 10, 20, 30 and 40 ton/ha. The results showed that Bio-slurry treatment not significant effect on stem diameter, shoot dry weight and root shoot ratio. Bio-slurry treatment increase the fruit length. Okra berpotensi untuk dikembangkan karena ...
Penelitian ini bertujuan untuk mendapatkan dosis bokashi dan frekuensi pembumbunan yang dapat men... more Penelitian ini bertujuan untuk mendapatkan dosis bokashi dan frekuensi pembumbunan yang dapat meningkatkan pertumbuhan dan produksi ubi jalar. Penelitian dilaksanakan di Desa Tanjung Anom, Medan Sunggal pada Oktober 2015 sampai Januari 2016. Metode penelitian menggunakan rancangan acak kelompok faktorial dengan dua faktor yaitu pupuk bokashi (0, 5, 10, 15 ton/ha) dan frekuensi pembumbunan (2, 3 dan 4 kali). Parameter yang diamati adalah pertambahan panjang tanaman per sampel, jumlah umbi per sampel, panjang umbi per sampel, diameter umbi per sampel, bobot umbi per sampel, bobot umbi per plot, bobot biomassa tanaman per sampel, rataan bobot umbi dan indeks panen. Hasil penelitian menunjukkan dosis pupuk bokashi berpengaruh nyata meningkatkan bobot umbi per sampel. Frekuensi pembumbunan berpengaruh nyata meningkatkan diameter umbi per sampel. Interaksi antara dosis pupuk bokashi dan frekuensi pembumbunan berpengaruh tidak nyata terhadap seluruh parameter.
Proceedings of the International Conference on Natural Resources and Technology, 2019
Drought stress is a major problem in crop production worldwide. The unavailability of groundwater... more Drought stress is a major problem in crop production worldwide. The unavailability of groundwater and erratic climate change causes a lack of water for plants. Efforts that can be made to maintain sweet potato production in drought conditions are by planting genotypes that are tolerant of drought stress. This research aim was to determine the growth and production and also to analyze the physiological characters of several sweet potatoes genotypes on various watering level. The observed parameters were chlorophyll a, b and total and also relative water content at two months and three months after planting (MAP). The results showed that sweet potato genotypes had a different response to the level of watering. The response of each sweet potato genotype was significantly different in the parameters of chlorophyll a, b and total chlorophyll in the third month and the relative water content at 2 MAP. The Binjai accession genotype had the highest chlorophyll a, b and total chlorophyll con...
The aim of this research was to know growth response and production of some sorghum varieties to ... more The aim of this research was to know growth response and production of some sorghum varieties to the addition of tithonia compost. The research was held from July - November 2014, used randomized block design with three factors addition of tithonia compost (0, 10, and 20 ton/ha) and two varieties (Kawali and Numbu). Parameters measured were plant height,the number of leaves , flowering time, weight of panicle seed per sample, weight of panicle seed per plot, yield per sample, yield per plot, and 1000 grains weight. The result showed that compost doesn’t affected significantly on all of parameters. Varieties affected significantly on plant height, the number of leaves, flowering time, yield per sample, yield per plot, and 1000 grains weight. There were not any interaction between compost and variety on all parameters. The best result was found in the combination of 10 kg tithonia compost and numbu variety.Keywords: , tithonia, variety, compost, sorghum.
Climate change is a serious threat to the agricultural sector, and it is one of the causes of dro... more Climate change is a serious threat to the agricultural sector, and it is one of the causes of drought as a major environmental stress factor that affects the growth and development of plants. Drought stress in soybean as one of the food crops of protein sources, will have a serious impact on changes in plant growt and yield, , physiological and biochemical aspects of plant cell damage due to oxidative stress caused by increased free radical accumulation in the form of reactive oxygen species in plants. One approach for improving the tolerance of oxidative stress in soybean under drought stress is the application of exogenous antioxidants. The aim of the research was to investigate the effect of foliar application of exogenous antioxidant on production and physiological characters of soybean under drought stress. The research used a factorial randomised block design with 2 factors and 3 replications. The first factor was drought stress treatment, namely 80 %, 60 % and 40 % of field c...
Using of saline land to grow up soybean has constraints such yield decreasing. By using ofsaline ... more Using of saline land to grow up soybean has constraints such yield decreasing. By using ofsaline tolerant soybean, using ascorbate acid, and inoculation of mychorrizha vesicular arbuscular(MVA) aimed to increasing growth and yield of soybean in saline land.This research was conductedat Kecamatan Percut Sei Tuan Kabupaten Deli Serdang in Februari – Mei 2013, using split split plotdesign with three factors, i.e. variety of saline tolerant soybean (Grobogan no selection andGrobogan F4 selection), giving of ascorbate acid (0 dan 500 ppm) and MVA isolate (MVA type 1,type 2, type 3, type 4 and type 5). Parameter observed were plant height, number of leaves, numberof productive branches, production per plant.The result of the research showed that using of salinetolerant soybean significantly increase all parameters observed. Giving of ascorbate acidsignificantly increase number of productive branches. Inoculation of MVA significantly effect allparameters observed. Interaction between varie...
IOP Conference Series: Earth and Environmental Science, 2020
Magnesium is a very important nutrient for the formation of chlorophyll and affects the density o... more Magnesium is a very important nutrient for the formation of chlorophyll and affects the density of stomata. The aim of the research was to evaluate the role of magnesium in the formation of chlorophyll and stomatal density. The study was conducted in Deli Tua, Deli Serdang Regency, Sumatera Utara from May to August 2019. The experimental design used was a factorial randomized block design. As the first factor, soybean varieties consist of Demas, Devon-1, Anjasmoro, Dering-1. The second factor is dose of magnesium applied consisting of 0; 100; 200 and 300 kg MgSO4/ha. The research result indicated that the highest total chlorophyll was found in Dering-1 compared to other varieties. The highest of stomatal density was found in Demas variety. The highest of chlorophyll total was found in the treatment of 100 kg MgSO4/ha on Dering-1 variety, while the highest stomatal density was found in the control treatment (0 kg MgSO4/ha) on Demas variety.
IOP Conference Series: Earth and Environmental Science, 2020
Water shortage is an environmental stress that affects the growth, quantity and quality of sweet ... more Water shortage is an environmental stress that affects the growth, quantity and quality of sweet potato production. The study objective was to analyse the effect of drought stress on the quantity and quality of orange-fleshed sweet potato. Field research has been carried out in April to July 2019 in the greenhouse. This research used a randomized block design with two factors, the first factor was sweet potato cultivars (Beta-1 variety, Perbaungan cultivar, Cengkeh Turi cultivar and Tanah Seribu cultivar) and the second factor was drought stress with different watering level namely severe drought (watered until 1 month and until 2 months with 10 days interval, respectively) and control (watered until 4 months with 10 days interval). The results showed that the orange-fleshed sweet potato cultivars produced significantly different average tuber weights, the number of tubers, beta carotene content, starch content and tuber moisture content were not significantly different. Drought str...
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Papers by Lisa Mawarni