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桑园施用堆肥等有机肥料是提高桑叶质量的重要条件。但为了节省材料和劳力,改用未经堆积腐熟的牛粪和猪粪直接施入。试验田为新栽的桑园,土壤为冲积性砂壤土。牛粪和猪粪用量每年每市亩13.2吨,从5月到9月分5次施用,对照区为冬季沟施堆肥每亩1.32吨。此外,所有处理还施用化学肥料(每亩N17.3公斤,P_2O_56.6公斤,K_2O 6.6公斤),并以春肥40%、夏肥60%的比例施用。三年试验结果表明,第一年桑树枝条生长数量和长度各处理区间差异很少,以对照为100,
Mulberry organic fertilizer application of compost and other organic fertilizer is to improve the quality of mulberry leaves an important condition. However, in order to save the material and labor, the use of non-composted cow dung and pig manure directly into. Experimental field for the newly planted mulberry, soil is alluvial sandy loam. Amount of cow dung and pig manure per year, 13.2 tons of mu per city, from May to September divided into 5 applications, the control area for the winter furrow composting 1.32 tons per mu. In addition, chemical fertilizers (N17.3 kg / Kg, P.65 kg / K2O.6.6 kg / mu) were applied to all treatments and were applied at a rate of 40% of spring fertilizer and 60% of summer fertilizer. Three years of test results show that the first year mulberry branches growth in the number and length of the treatment interval is very small, with a control of 100,