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果园种植绿肥最大好处是增加土壤有机质。绿肥植株含有大量氮、磷、钾及其他必需元素,养分含量较化肥全面。豆科绿肥还有同氮作用。据分析测定,每100斤新鲜紫穗槐嫩条可含氮1.32斤,含磷酸0.30斤,含氧化钾0.79斤。其氮、磷、钾含量高于人粪尿。草木樨的含氮量几乎与猪粪尿相近。据测定,种草木樨一年的土
Orchard planting green manure is to increase the maximum benefit of soil organic matter. Green manure plants contain large amounts of nitrogen, phosphorus, potassium and other essential elements, nutrient content more comprehensive than fertilizer. Legume green manure also has the same role of nitrogen. According to the analysis and determination, each 100 kg of fresh Amorpha fruticosa can contain 1.32 kg of nitrogen, 0.30 kg of phosphoric acid and 0.79 kg of potassium oxide. Its nitrogen, phosphorus and potassium content is higher than human excrement. Nodular nitrogen content is almost similar with pig manure. According to the determination, the year of planting licorice soil