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随着耕作制度与绿肥事业的发展,我省出现了条带种植形式下绿肥参与轮作的粮肥间作制,这种耕作制,起到粮食产量逐年增长与培肥地力的双重作用,发展较快.莒县城阳公社东村大队,从1969年改制,到1976年粮食单产由462斤增至1547.2斤,六年间粮食亩产增加1085.2斤,增长3.35倍,每年两季绿肥产量均在3500～5000斤左右.显示出我国华北地区粮肥间作制的良好前景.一、粮肥间作的产量结构粮肥间作制是由小麦、玉米两种粮食作物和苕子、绿豆、(或柽麻)两种绿肥作物在条带种植的方
With the development of tillage system and green manure undertaking, there was a grain-fat intercropping system in which the green manure was involved in rotation under the belt planting pattern in our province. This tillage system played a dual role of increasing grain yield and improving soil fertility and developed rapidly The total unit output of grain in 1976 increased from 462 kg to 1547.2 kg, 1085.2 kg of grain in six years, an increase of 3.35 times, and the annual output of green manure in the two seasons was between 3500 and 5000 Kg, showing a good prospect of grain-fat intercropping system in North China.First, grain-yield intercropping yield structure Grain-fat intercropping system is composed of wheat and corn two kinds of food crops and razor clam, mung bean, Green manure crop is planted in strips