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我省传统的冬季绿肥——紫云英,历來以连作晚稻稻田套播,随着迟熟高产晚稻品种的推广和插秧密度的增加,紫云英苗期在稻底生长期延长,光照过弱,对幼苗生长极为不利。水稻收割后,常遇寒流霜冻,死苗严重。冬春雨涝为害和栽培管理上的粗放,近年来绿肥产量普遍较低,一般亩产在1000—1500公斤。早稻的有机肥料不足和青饲料紧缺矛盾随之日益突出。本试验采用冬春两季
The traditional winter green manure in our province, Ziyunying, has traditionally been planted in late rice paddy fields. With the popularization of late maturity and high yielding late rice varieties and the increase of planting density, Weak, the growth of seedlings is extremely unfavorable. After harvesting rice, frost often frost, dead seedlings serious. Winter and spring flood damage and extensive cultivation management, green manure production in recent years generally low, the general per-mu yield of 1000-1500 kg. The shortage of organic fertilizers and shortage of green fodder in early rice has become increasingly prominent. This test uses winter and spring