La agricultura bajo protección es una tendencia creciente entre pequeños y medianos agricultores ... more La agricultura bajo protección es una tendencia creciente entre pequeños y medianos agricultores de hortalizas en Guatemala. Sin embargo, existe la interrogante sobre la rentabilidad económica de este tipo de proyectos. Se presenta un análisis sobre la producción de tomate en los tipos de invernaderos utilizados por productores de Sololá. Se analizan los diversos costos asociados a la producción, los precios de venta, el punto de equilibrio, la rentabilidad y utilidad en diversos escenarios de precios y de rendimiento del cultivo. Se determinó que el costo de producción de tomate bajo invernadero en promedio es alrededor de Q. 45.00 por metro cuadrado por ciclo, pero puede variar entre Q. 30 y Q. 60 por metro cuadrado. Se encontró que para percibir utilidades el precio de venta debe ser mayor de Q.1.13/lb o Q. 57.00 por caja de 50 lb. Si el precio de venta es menor, los productores tendrían pérdidas económicas. Utilizando un precio promedio de venta para el año 2014 en Sololá (Q. 1.6 la libra) se estimó una rentabilidad de 42 %, con la posibilidad de aumentar la rentabilidad a medida que se incremente la productividad o los precios de venta
This document summarizes technical information about ¨Chaya¨ (Cnidoscolous aconitifolius), a very... more This document summarizes technical information about ¨Chaya¨ (Cnidoscolous aconitifolius), a very promising native plant with high nutitional value. The documents includes botanical descriptions of different varieties found in Guatemala, agronomic recomendations, nutritional studies and local recipes for chaya consumption.
Several materials for high tunnels covering were evaluated. These were: plastic over anti-insect... more Several materials for high tunnels covering were evaluated. These were: plastic over anti-insect net, anti-insect net alone and non woven fabric. The effect of the covering materials on the microclimate inside the tunnel and productivity of bell pepper was compared to open field conditions. The experiment was conducted during two cycles in consecutive years (2012-2013) in three sites at 292, 1695 and 2343 meters above sea level. In 2012 the bell pepper hybrids evaluated were Natalie and Cacique. In 2013 the bell pepper hybrids evaluated were Natalie, Tecun and Cortes. It was determined that the best cover material was the combination of anti-insect net with a plastic roof. With this cover material the highest yield (42.3 t/ha) was obtained. Temperature and relative humidity (32.2 °C and 52 %) within that high tunnel was the most appropriate for the crop. It was also observed that plants bloomed earlier and the loss in productivity due to sun burn and fungal diseases was reduced. The second best cover material was the anti-insect net alone with an average yield of 25.1 t/ha. It generated slightly higher temperatures and lower relative humidity (32.7°C and 49.5 %). Non woven fabric had the lowest production (21.3 t/ha) among the high tunnels. With his cover material the temperature obtained was 32 °C and 50.5 % relative humidity. No differences in yield were observed between the pepper hybrids. On average, the productivity was increased 4.4, 2.6 and 2.2 times in the tunnels with covering combining plastic with anti-insect net, anti-insect net alone and non woven fabric when compared to the yield under open field conditions. These results are the first ones in Guatemala and are expected to be useful for producers and companies that promote this kind of technology.
The cultivars, Nemo netta, Tabré, and Dartagnian were evaluated under greenhouse conditions at fo... more The cultivars, Nemo netta, Tabré, and Dartagnian were evaluated under greenhouse conditions at four different sites and altitudes. Three of the greenhouses were located in Sololá and one in Suchitepéquez. It was determined that all four cultivars were suitable for greenhouse conditions in the two departments, however a difference was found with statistical significance between the yield was found between sites. Ojo de Agua in Sololá had the highest yield (243 ton/ha), in contrast in Suchitepéquez the yield was the lowest, but there is a possibility of growing two crops in one year due to the fast growth. Escudero had the higher yield in all four sites with statistical significance. The next best yield was obtained with Nemo netta, Dartagnian and Tabaré. Escudero produced more fruit clusters per plant, the fuits were heavier than the other cultivars and a high proportion of first class fruits. It is expected that the results obtained are useful to producers who produce under greenhouse conditions in the coast and highlands in the country.
La agricultura bajo protección es una tendencia creciente entre pequeños y medianos agricultores ... more La agricultura bajo protección es una tendencia creciente entre pequeños y medianos agricultores de hortalizas en Guatemala. Sin embargo, existe la interrogante sobre la rentabilidad económica de este tipo de proyectos. Se presenta un análisis sobre la producción de tomate en los tipos de invernaderos utilizados por productores de Sololá. Se analizan los diversos costos asociados a la producción, los precios de venta, el punto de equilibrio, la rentabilidad y utilidad en diversos escenarios de precios y de rendimiento del cultivo. Se determinó que el costo de producción de tomate bajo invernadero en promedio es alrededor de Q. 45.00 por metro cuadrado por ciclo, pero puede variar entre Q. 30 y Q. 60 por metro cuadrado. Se encontró que para percibir utilidades el precio de venta debe ser mayor de Q.1.13/lb o Q. 57.00 por caja de 50 lb. Si el precio de venta es menor, los productores tendrían pérdidas económicas. Utilizando un precio promedio de venta para el año 2014 en Sololá (Q. 1.6 la libra) se estimó una rentabilidad de 42 %, con la posibilidad de aumentar la rentabilidad a medida que se incremente la productividad o los precios de venta
This document summarizes technical information about ¨Chaya¨ (Cnidoscolous aconitifolius), a very... more This document summarizes technical information about ¨Chaya¨ (Cnidoscolous aconitifolius), a very promising native plant with high nutitional value. The documents includes botanical descriptions of different varieties found in Guatemala, agronomic recomendations, nutritional studies and local recipes for chaya consumption.
Several materials for high tunnels covering were evaluated. These were: plastic over anti-insect... more Several materials for high tunnels covering were evaluated. These were: plastic over anti-insect net, anti-insect net alone and non woven fabric. The effect of the covering materials on the microclimate inside the tunnel and productivity of bell pepper was compared to open field conditions. The experiment was conducted during two cycles in consecutive years (2012-2013) in three sites at 292, 1695 and 2343 meters above sea level. In 2012 the bell pepper hybrids evaluated were Natalie and Cacique. In 2013 the bell pepper hybrids evaluated were Natalie, Tecun and Cortes. It was determined that the best cover material was the combination of anti-insect net with a plastic roof. With this cover material the highest yield (42.3 t/ha) was obtained. Temperature and relative humidity (32.2 °C and 52 %) within that high tunnel was the most appropriate for the crop. It was also observed that plants bloomed earlier and the loss in productivity due to sun burn and fungal diseases was reduced. The second best cover material was the anti-insect net alone with an average yield of 25.1 t/ha. It generated slightly higher temperatures and lower relative humidity (32.7°C and 49.5 %). Non woven fabric had the lowest production (21.3 t/ha) among the high tunnels. With his cover material the temperature obtained was 32 °C and 50.5 % relative humidity. No differences in yield were observed between the pepper hybrids. On average, the productivity was increased 4.4, 2.6 and 2.2 times in the tunnels with covering combining plastic with anti-insect net, anti-insect net alone and non woven fabric when compared to the yield under open field conditions. These results are the first ones in Guatemala and are expected to be useful for producers and companies that promote this kind of technology.
The cultivars, Nemo netta, Tabré, and Dartagnian were evaluated under greenhouse conditions at fo... more The cultivars, Nemo netta, Tabré, and Dartagnian were evaluated under greenhouse conditions at four different sites and altitudes. Three of the greenhouses were located in Sololá and one in Suchitepéquez. It was determined that all four cultivars were suitable for greenhouse conditions in the two departments, however a difference was found with statistical significance between the yield was found between sites. Ojo de Agua in Sololá had the highest yield (243 ton/ha), in contrast in Suchitepéquez the yield was the lowest, but there is a possibility of growing two crops in one year due to the fast growth. Escudero had the higher yield in all four sites with statistical significance. The next best yield was obtained with Nemo netta, Dartagnian and Tabaré. Escudero produced more fruit clusters per plant, the fuits were heavier than the other cultivars and a high proportion of first class fruits. It is expected that the results obtained are useful to producers who produce under greenhouse conditions in the coast and highlands in the country.
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