蚕豆和小麦是两种不同科的作物,在形态和生理上差别较大。蚕豆一般单产低而不稳,而小麦单产较高较稳,但蚕豆根瘤菌有固氮培肥地力的作用,成本较低,其生态效益高过小麦。两种作物实行间作,从单一群体变为复合群体,使二者优势互补,扬长补短,增产潜力和综合效益得到进一步的发挥 Broad beans and wheat are two different families of crops, in the morphological and physiological differences. Broad beans generally yield low and unstable, while the higher yield of wheat stable, but Fagus rhizobia nitrogen fixation fertilizer fertility, lower cost, higher ecological efficiency than wheat. The intercropping of two kinds of crops changed from a single group to a composite group, so that the two would complement each other’s strengths, complement each other’s strengths, enhance the potential for yield increase and further enhance the comprehensive benefits