075 - Paikar, G. R.

Ghulam Reza Paikar:

An input–output energy analysis of greenhouse vegetable production, evidence from Balkh province



Horticultural production has become more common in the agriculture sector of Afghanistan in recent years. This case study analyzed the effects of different energy inputs on cucumber and tomato yields using data from Balkh province. The primary data was collected through face to face interviews with 162 farmers (the total study population). The Cobb-Douglas production function was used to analyze the data. The results indicate that among the energy inputs investigated, seed energy has the greatest impact (0.36) on cucumber yields, while other inputs, such as manure, land size and capital, also significantly contribute to the production of cucumbers. The regression results for tomatoes reveal that the contribution of energy inputs such as land size, capital, seeds, water and chemical fertilizer (NPK20) are positive and significant. A one-unit increase in NPK20 would increase tomato yields by 33.6 percent. The sum of the estimated coefficients for cucumber (1.241) and tomato (1.422) production confirm an increase in the returns to scale.

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