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广种绿肥是利用光热能量,改良土壤,用地养地结合,确保农业持续增产的有效措施。对于国营农场大农业更为重要。 绿肥的作用可以归纳为肥田、改土、增产三个方面: 1.提高土壤肥力:大多数的绿肥都具有根瘤,并有发达的根系,一方面可以固定空气中的氮素,另一方面又可以吸收土壤深层的养分,长成繁茂的枝叶,经翻压分解成为土壤中的有效养分。 2.改良土壤理化性状:绿肥在分解过程中,大量的有机质分解成腐殖质,为土壤团粒结
Wide range of green manure is the use of light and heat energy, soil improvement, land use and land to ensure that agricultural continuous production increase effective measures. It is more important for large-scale state-owned farms. The role of green manure can be summarized as fertilizer, soil improvement, increase production in three areas: 1. To improve soil fertility: Most of the green manure has nodules, and developed roots, on the one hand you can fix the nitrogen in the air, on the other hand Can absorb the deep soil nutrients, grow into lush branches and leaves, the pressure into the soil decomposition of the effective nutrients. 2. To improve soil physical and chemical properties: green manure in the decomposition process, a large number of organic matter decomposed into humus, soil aggregates