So maximum yield is for researcher; maximum economic yield is for farmer.

因此最高产量是为研究工作者，最大经济产量是为农民。

This fact makes Maximum Economic Yield or MEY results almost impossible.

这使得最大经济产量研究几乎不可能。

Sunflower and buckwheat were similar to legume but they hadn't economic yield without fertilization.

与豆科作用相似的非豆科作物有葵花、荞麦等，但不施肥不能形成经济产量；