本文报道了一项评价水稻和小麦生产中各项农事作业所需能量和成本的专题研究结果。机械化作业投入的能量和成本比传统作业高,但从增加产量和不误农时的角度来看,仍以采用机械作业更为有利。本专题研究还发现粮食产量直接与投入的能量成正比。 This paper reports the results of a thematic study that assessed the energy and costs of farming operations in rice and wheat production. Mechanized operations involve more energy and costs than traditional operations, but mechanical operations are still more advantageous from the standpoint of increasing output and not misinforming farmers. The present study also found that food production is directly proportional to the energy input.