一.绿肥作物的意义利用未分解的植物的叶、茎和根,把它翻埋入土或经过漚制腐熟后作为肥料,这种肥料叫绿肥。绿肥是我国农业生产上应用极广泛的一种富含氮素和有机质的肥料,它能够显著的提高作物的产量,例如华东农业科学研究所1955年在南京的试验:在没有种绿肥的冬季休闲地上种水稻,每亩稻谷产量是628.8斤,施用了紫云英鲜草2,300斤,稻谷产量是700.8斤,增产13%,而在冬季种紫 I. The significance of green manure crops The leaves, stems and roots of undivided plants are used to turn them into soil or to be decomposed and composted as fertilizer, which is called green manure. Green manure is a nitrogenous and organic fertilizer rich in agricultural production in China. It can significantly increase the yield of crops. For example, the East China Institute of Agricultural Sciences experimented in Nanjing in 1955: In the winter without green manures On the ground of rice, rice yield per mu is 628.8 kg, applied 2,300 pounds of milk vetch, rice output is 700.8 kg, an increase of 13%, while in winter purple