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随着农业生产的发展,那种只用地而不养地的掠夺式农业的危险,逐渐地被人们所认识,人们已经清楚地认识到了绿肥生产在农业生产(培肥地力)中的地位。国内外农业生产实践证明,施用肥料应以有机肥为主,配合施用化肥。光靠增加化肥用量或长期施用化肥,会破坏土壤结构,而在有机质含量低的土壤中,增施化肥的有效性也差。提高粮棉产量只有采取“以农家有机肥为主,有
With the development of agricultural production, the danger of predatory agriculture that uses land instead of raising land is gradually recognized. People have clearly recognized the status of green manure production in agricultural production (soil fertility). Practice shows that agricultural production at home and abroad, the application of organic fertilizers should be based, with the application of fertilizers. Fertilizer alone or by long-term application of chemical fertilizers, will destroy the soil structure, and in the organic matter content of low soil, the effectiveness of fertilizer addition is poor. Only to improve grain and cotton production "to organic fertilizer-based farmers, there