Balance energetico de sistemas de produccion de cultivos basados en la yuca (Manihot esculenta Crantz)
Material type:
TextLanguage: Spanish Publication details: Turrialba, CR Centro Agronómico Tropical de Investigación y Enseñanza (CATIE) 1980Description: 18 pSubject(s): LOC classification: - 13288
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CIAT Library Document collection CINFOS | Document Collection CINFOS | 13288 (Browse shelf(Opens below)) | c.1 | Short Loan | 100072189 |
En Turrialba se calculo el balance energetico de 10 sistemas experimentales de produccion basados en yuca. Estos sistemas incluyen el monocultivo y asociaciones con frijol comun, maiz y batata en diversas combinaciones. Como entrada, se considero la energia cultural compuesta principalmente por agroquimicos y mano de obra, y como salida, la energia contenida en la parte alimenticia de los cultivos. El uso de mano de obra se ajusto de acuerdo con datos reales. El balance energetico cultural disminuyo a medida que aumentaba el no. de especies en el sistema, debido principalmente al incremento en el uso de fertilizantes aplicados. Aquellos sistemas cuya fertilizacion nitrogenada fue mayor, resultaron con menor balance. En general, se registraron balances cuyo valor fluctuaba entre 4,0 y 8,6 GJ/ha/ano. El menor balance corresponde a un sistema de produccion integrado por yuca, frijol comun, maiz y batata creciendo en asociacion, y el mayor a un sistema compuesto solo por yuca y frijol creciendo en asociacion durante la fase de establecimiento de esta. (RA-CIAT) spa
Presentado en la XXVI Reunión Anual del PCCMCA, del 24 al 18 de marzo de 1980 en Guatemala, Guatemala
In Turrialba, the energetic balance of 10 exptl production systems based on cassava was estimated. These systems include monoculture, associations with dry beans, maize and sweet potatoes in diverse combinations. The cultural energy composed mainly of agrochemicals and labor was considered as input and the energy contained in the nourishing part of the crop as output. The use of labor was adjusted according to real facts. The cultural energetic balance decreased as the no. of species in the system increased, due mainly to the increment in the utilization of applied fertilizers. Those systems with greater than N fertilization, resulted with less than balance. In general, balances with values that fluctuated between 4.0 and 8.6 GJ/ha/yr were registered. The less than balance corresponds to a system integrated by cassava, beans, maize and sweet potatoes in association and the greater than balance to a system of just cassava and beans in association during its establishment. (AS-CIAT) eng