Papers by Tumpal HS Siregar
Penebar Swadaya, 2009
Cokelat,tampaknya semakin membutuhkan perhatian khusus yang lebih sungguh-sungguh, Rencana nasion... more Cokelat,tampaknya semakin membutuhkan perhatian khusus yang lebih sungguh-sungguh, Rencana nasional untuk mengisi peluang ekspor komoditi nonmigas membawa dampak pada usaha perluasan areal pertanaman cokelat. Penelitianpun mulai lebih intensif dilakukan.. Semuanya bertujuan untuk mendapatkan produksi cokelat yang memadai dengan kualitas yang mampu bersaing di pasaran internasional. Buku ini mencoba menyumbangkan informasi rinci tentang teknik budi daya dan biaya produksi, teknik pengolahan buah dan biji cokelat dan tata cara memasarkan biji cokelat.ix, 170 hal. : Ilus. ; 21 c
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Universitas Medan Area, 2016
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Penebar Swadaya, 1996
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The rubber is one of the plantation commodity which is the source of livelihood for 1.6 million p... more The rubber is one of the plantation commodity which is the source of livelihood for 1.6 million peasant families, as well as the second largest source of foreign exchange after palm oil and also employers as well as suppliers of various raw materials in the domestic rubber industry. As a commodity plantation, in the development, are required to contribute to optimal results both for the welfare of the community and the sustainability of its business . The objectives of this study are: to determine the external and internal strategic factors that influence the development of smallholder rubber agribusiness in South Tapanuli, to determining the strategic formulation of smallholder rubber development of agribusiness in South Tapanuli, and construct the strategic priority to develop agribusiness in smallholder rubber South Tapanuli .From the analysis, can be conclusions that: there were 13 external strategic factors and 10 internal strategic factors affecting the development of smallho...
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Tanjung Tiram District is the central areas and the potential for development of coconut commodit... more Tanjung Tiram District is the central areas and the potential for development of coconut commodities because of the natural conditions. The purpose of the study was to determine the coconut marketing channel system, to know the marketing margin on each marketing channel and to determine the level of coconut marketing efficiency. This research is quantitative descriptive by survey method. The research instruments used the interviews and questionnaires. The respondents in the sample used by 80 coconut farmers at Tanjung Tiram District of Batubara Regency. The result of study shows that the most small marketing margin at channel 3 (coconut farmer - retailer - consumer) of Rp. 700/piece of coconut, while the most of marketing margin at channel 2 (coconut farmer - wholesaler - consumer) and channel 5 (coconut farmer - trader - merchants of the city - town factory or retailer - consumer). The conclusion of this study is there are 5 types of coconut marketing channels at Tanjung Tiram Dist...
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Indonesian Journal of Community Engagement, 2020
Tebal kulit disadap, kedalaman sadap, panjang alur sadap, frekuensi sadap, dan waktu sadap harus ... more Tebal kulit disadap, kedalaman sadap, panjang alur sadap, frekuensi sadap, dan waktu sadap harus dipertimbangkan dalam penyadapan pohon karet. Perencanaan penggunaan bidang sadap penting untuk menjamin periode sadap yang panjang, lebih dari 25 tahun. Pada perkebunan karet rakyat hal tersebut tidak dianut. Oleh karena itu, penyuluhan yang sesuai dengan kebutuhan petani diperlukan. Penelitian ini menyajikan aspek agronomi perkebunan karet rakyat yang menunjukkan rendahnya produksi dan beberapa aspek penyuluhan yang diperlukan petani karet. Penelitian dilakukan melalui survei dan tanya jawab pada Juni-Juli 2019 di Desa Sari Laba Jahe, Kecamatan Biru-Biru, Kabupaten Deli Serdang, Provinsi Sumatera Utara. Kelompok yang disurvei adalah Kelompok Tani Mekar Tani yang beranggota 30 orang. Pengumpulan data dilakukan dengan pengamatan kebun karet masing-masing petani dan tanya jawab untuk memperoleh data serta informasi, berkaitan dengan aspek agronomi. Hasil penelitian menunjukkan bahwa pet...
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The strategy is an action that is incremental (constantly increasing) and continuously, and is ba... more The strategy is an action that is incremental (constantly increasing) and continuously, and is based on the customer expected in the future. The speed of innovation of new markets and changing patterns of consumer requires core competencies. This research was conducted at PT. PTPN III Serdang District II (DSER 2), with the objectives of : (1) to analyze the strengths, weaknesses, threats and opportunities the business units of PTPN III, (2) to identify the business strategies implemented by each business unit/district in PTPN III, as one of the incremental actions and continous for the customers expectations towards the products. The results showed that: (1) based on internal factor analysis, the strengths and the weaknesses of the business unit District of Serdang II are the high sales value, healthy financial condition, organizational structure, educational background, soil fertility and plant age composition. While the weakness of the business unit are the age composition of emp...
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AGRISAINS: Jurnal Ilmiah Magister Agribisnis, 2020
his study aims to analyze the policies of the community oil palm rejuvenation program through the... more his study aims to analyze the policies of the community oil palm rejuvenation program through the oil palm plantation fund management agency (BPDPKS) in South Labuhanbatu Regency. The data analyzed were obtained from the research location in Aek Raso Village, Torgamba Subdistrict, South Labuhanbatu Regency by conducting structured interviews with 165 farmers who applied for aid. This rejuvenation program policy has requirements consisting of administrative aspects and financing aspects. Research shows that the value of aid funds provided by the government in implementing oil palm rejuvenation has not been able to support the costs required. The percentage of farmers who have 2 ha of land area is 78.8% while those who have 4 ha of land area are 21.2%, the age of productive farmers is 68% while 32% of age is not productive. Farmers who have a legality of land as much as 36% and who are not legal as much as 64%. This policy has not been specific to the location proven from the data of ...
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AGRISAINS: Jurnal Ilmiah Magister Agribisnis, 2020
This study aims to: (1) analyze the influence of inputriables, namely land area, labor costs, see... more This study aims to: (1) analyze the influence of inputriables, namely land area, labor costs, seed varieties, number of plants, and the cost of purchasing fertilizer on the yield of kencur on peatlands in Panai Hilir District Labuhanbatu Regency (2). Knowing the dominant variables that produce kencur results in Panai Hilir District, Labuhanbatu Regency. In order to find answers to the problems and objectives of the study then conducted a study of the factors that influence kencur production in Panai Hilir District, Labuhanbatu District by taking a sample of 75 samples consisting of farmers who worked for us, kencur while conducting research. Respondents who were given a questionnaire related to the production business carried out. The data obtained were analyzed with the help of SPSS program version 21.0. Research conducted, the variables used are seedling costs (X2), number of plants (X3), variable labor costs (X4) and fertilizer purchase variable (X5). From the research conducted ...
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JURNAL AGRICA, 2017
Pengambangan karet di sekitar hulu dan hilir sekaligus di hadapkan pada maslaah kelangkaan tenaga... more Pengambangan karet di sekitar hulu dan hilir sekaligus di hadapkan pada maslaah kelangkaan tenaga kerja, terutama penyadap dimana aktivitas nya menyerap 45-50% dari biaya produksi. Halini semakin berat pada perkebunan yang jauh dari pusat kota, dimana sarana dan prasarana akses terhadap pelayanan umum terbatas.Tujuan penilitian adalah untuk mendapatkan suatu modul strategi penanggulangan terhadap kelangkaan penyadap di perkebunan karet. Penilitian di lakukan di Sikijang,Riau. Data diperoleh dengan menggunakan insrumen kuisioner pada 58 orang responden terpilih yan data nya di olah dengan Microsoft excel .Data sekunder di dapatkan dari BPS (badan pusat statistic), Dinas dirjen perkebunan, Deperindak, Depnaker,dan browsing website terkait. Variable yang di ukur dikelompokkan dalam faktor faktor strategis internal dan eksternal yang di analisis melalui pendekatan SWOT, berdasarkan penilaian aspek kesejahteraan tenaga penyadap, ketersedian tenaga kerja, persaingan antar kebun/ indust...
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Budapest International Research in Exact Sciences (BirEx) Journal, 2020
The increase of rubber production can be done by introducing tapping technology for rubber farmer... more The increase of rubber production can be done by introducing tapping technology for rubber farmers, when rubber prices are low. The facts showed that smallholder rubber production is still low, in the range of 600-800 kg of dry rubber / ha / year. Tapping practiced by rubber farmers is generally not based on tapping technology, which is integrated in the aspects of plants, tapping planning and management, the use of stimulants, and a number of other technical aspects. To increase smallholder rubber production, rubber tapping technology was introduced to Mekar Tani Groups in Sari Laba Jahe Village, Sibiru Biru Sub-district, Deli Serdang District (North Sumatra). The results of the introduction in the form of stimulant application showed that a month after applying the stimulant, the increase in production averaged 60.65%. If production without applying the stimulant was 0.18 kg / tree, then after applying the stimulant 0.28 kg / tree was obtain. The results of this study within a mon...
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IOP Conference Series: Earth and Environmental Science, 2019
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AGRISAINS: Jurnal Ilmiah Magister Agribisnis, 2020
This study aims to (1) Know the cost elements of farming; (2) To know the financial feasibility o... more This study aims to (1) Know the cost elements of farming; (2) To know the financial feasibility of cocoa farming through analysis of B/C ratio and R/C ratio; (3) to know the cost structure of farming; (4) Analyzing the acceptance and income of cocoa farmers (5) Knowing the cocoa bean marketing system; (6) Knowing the cost, profit, margin and marketing efficiency of each marketing agencies, as well as the large farmer's share obtained by cocoa farmers in Kecamatan Juhar, Karo District. Determination of location of research conducted by the method of "Purposive Sampling". Sampling conducted by judgment sampling, while the determination of merchant that made the sample was done by snowball sampling method. The research method used in this research is survey method by conducted interviews and observation of fishermen and traders. The results of this study are 1) The cost of farming cover of labor, fertilizers and pesticides. (2) The result of B/C and R/C ratio is greater...
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Response of cacao plants to fertilizer is influenced by plant condition and homogeneity, which re... more Response of cacao plants to fertilizer is influenced by plant condition and homogeneity, which requires an optimal dose to obtain the best vegetation and yield. Cacao plants will experience deficiency if they receive a below-optimal fertilizer dose, and they will experience toxicity when they receive an above-optimal fertilizer dose. This study aimed to determine the best dose of balanced N.P.K.Ca.Mg fertilization for productive and non-productive yield of TSH 858 clone cocoa and a more suitable dose for flush (young shoot and leaves), cherelle (young fruit), and fruit development to increase cacao yield. This research consisted of two parallel experiments on productive and nonproductive plants in the same area. It used randomized non-factorial design, with treatments consisting of four levels of dose N.P.K.Ca.Mg 12.9 : 11.4 : 16.8 : 10.6 : 4.8 stages, namely: 896; 1,120; 1,344; and 1,568 (g tree). Observations were made for 24 weeks on the parameters such as the number of flushes, ...
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IOP Conference Series: Earth and Environmental Science, 2020
The low price of natural rubber in last 10 years has the impact on low income of the smallholder ... more The low price of natural rubber in last 10 years has the impact on low income of the smallholder rubber plantation. Intensity of tapping and management of Hevea crop had decreased. In other side, space between rows of Hevea could be managed to produce food when Hevea in Immature Periods, hence could be beneficial to the smallholder rubber plantation. This research evaluated paddy land local cultivar, Hamparan Perak, which produce the red rice, applied by biochart created from Hevea seed shell. Research was conducted with 12 combination treatments in 1x1 m2 plot size. Bicohart with 0 kg/plot, 0.5 kg/plot, and 1.5 kg/plot, combined with planting distance 20x20 cm, 25x25 cm and 30x30 cm of Hamparan Perak cultivar. Results found that biochart had significant effect on amount of panicles, but it was not significantly different effect on growth and yield. Planting distances had significant effects on crop height and amount of tillers but were not significantly different on 1000 grain weig...
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IOP Conference Series: Earth and Environmental Science, 2020
The low price of natural rubber in last 10 years has the impact on low income of the smallholder ... more The low price of natural rubber in last 10 years has the impact on low income of the smallholder rubber plantation. Intensity of tapping and management of Hevea crop had decreased. In other side, space between rows of Hevea could be managed to produce food when Hevea in Immature Periods, hence could be beneficial to the smallholder rubber plantation. This research evaluated paddy land local cultivar, Hamparan Perak, which produce the red rice, applied by biochart created from Hevea seed shell. Research was conducted with 12 combination treatments in 1x1 m2 plot size. Bicohart with 0 kg/plot, 0.5 kg/plot, and 1.5 kg/plot, combined with planting distance 20x20 cm, 25x25 cm and 30x30 cm of Hamparan Perak cultivar. Results found that biochart had significant effect on amount of panicles, but it was not significantly different effect on growth and yield. Planting distances had significant effects on crop height and amount of tillers but were not significantly different on 1000 grain weig...
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Penyakit Jamur Akar Putih (JAP) termasuk penyakit berbahaya ditinjau dari akibat yang ditimbulkan... more Penyakit Jamur Akar Putih (JAP) termasuk penyakit berbahaya ditinjau dari akibat yang ditimbulkannya dan dapat menyebabkan kerugian finansial yang dihitung secara nasional mencapai IDR 300 miliar setiap tahunnya. Pengendalian penyakit dengan memanfaatkan ekstrak bangun-bangun yang berpotensi sebagai antimikroba belum banyak diterapkan di perkebunan karet. Tujuan penelitian ini adalah untuk mengidentifikasi metabolit sekunder bangun-bangun dan mengetahui persentase penghambatan metabolit sekunder bangun-bangun terhadap penyakit JAP skala laboratorium. Penelitian menggunakan Rancangan Acak Lengkap (RAL) faktorial dengan 2 fakor dan 3 ulangan. Faktor yang digunakan adalah dosis dan pelarut (aseton, n-heksana dan metanol). Komponen yang dianalisis adalah akar dan daun bangun-bangun untuk mengetahui metabolit sekunder yang dihasilkan bangun-bangun melalui identifikasi fitokimia kemudian diekstraksi dengan berbagai pelarut untuk diuji terhadap Jamur Akar Putih ( Rigidoporus microporus ). ...
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AGRISAINS: Jurnal Ilmiah Magister Agribisnis, 2020
The main target of agricultural development is to increase agricultural production and income of ... more The main target of agricultural development is to increase agricultural production and income of rice farmers, therefore the activities of the agricultural sector are endeavored to run smoothly by increasing food products through intensification, extensification and diversification of agriculture which is expected to improve the standard of living of farmers, expand employment opportunities for the community still depends on the agricultural sector. The level of income of farmers in general is affected by several components, namely: the amount of production, selling prices, and costs incurred by farmers in their agriculture. To find out how much the cost, revenue, income, R / C Ratio, the difference in rice farm income between the Districts in Langkat District. The data used are primary data sourced from the groups of three rice farmers in Secanggang District, Sei Bingei District, and Batang Serangan District. Each sub-district was taken as many as sixteen farmer groups by giving a ...
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Britain International of Exact Sciences (BIoEx) Journal, 2020
Production of smallholder rubber in Indonesia is still very low, in the range of 600 - 900 kg of ... more Production of smallholder rubber in Indonesia is still very low, in the range of 600 - 900 kg of dry rubber/ha/year. Many factors influence it, such as non-clonal plants still being managed. Other factors such as agronomic aspects which include efforts to shorten the TBM period either through agronomic technology (canopy management, fertilization, or ground water management) are still ignored by smallholder rubber farmers, due to the limited access, capital, and even the perception that rubber plant production will not experience significant increase through tapping systems. The main and first approach that must be taken at this time on smallholder rubber is a new technology in tapping and management. This activity was carried out by four meetings and training in the garden of one of the trainees. Trainees consisted of rubber farmers in Sari Laba Jahe Hamlet, which also included rubber farmers from Peria Ria Hamlet - Sibiru Biru Sub-district (Deli Serdang Regency, North Sumatra). Th...
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