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一、绿肥生农业生产中的作用凡是直接利用植物的绿色部分来作肥料统称绿肥。从我省情况看,尽管厩肥、人粪尿、秸秆都是大宗有机肥源,但其数量比较稳定,增加有一定限度,绿肥则可利用荒山荒地种植,利用水面放养,利用空茬地进行间、套、混种,因此,发展潜力极大。大多数绿肥又是饲料作物,可作为农牧结合的纽带,具有成本低,见效快等特点。所以发展绿肥生产是农业上一项长期的,带根本性的战略措施。其主要效益有:(1)增加土壤氮素与有机物质。一般绿肥如以亩产绿肥2千斤计,每亩可增加有机质300斤,氮素6～12斤。以及磷、钾等多种营养成分。豆科绿肥除本身营养物质外,还可通过根瘤菌固定空气中的氮
First, the role of green manure in agricultural production All directly use the green part of the plant for fertilizer collectively referred to as green manure. From the situation in our province, although the manure, human waste, straw are bulk organic fertilizer sources, but the number is relatively stable, increasing a certain limit, green manure can be used to planted barren hills and wasteland, the use of water surface stocking, , Sets, mixed species, therefore, great potential for development. Most green manure is a feed crop, which can be used as a link between agriculture and animal husbandry. It has the characteristics of low cost and quick response. Therefore, the development of green manure production is a long-term and fundamental strategic measure in agriculture. Its main benefits are: (1) increase soil nitrogen and organic matter. General green manure, such as per kilogram of green manure 2 kg per acre can increase 300 kg of organic matter, nitrogen 6 to 12 pounds. And phosphorus, potassium and other nutrients. Legume green manure in addition to their own nutrients, but also through the Rhizobium fixed nitrogen in the air