蚕粪是一种含氮、磷、钾的优质有机肥料。1977年我们在学习湖南省湘潭地区蚕粪液做叶面追肥经验的基础上,进行对比试验,并对我社7,000多亩后季稻喷施蚕粪液一遍,获得显著的增产效果。试验方法试验田分别设于幸福七队和前一十队,试验共分5个处理:(1)幼穗分化始期每亩喷施蚕粪原液7斤,兑水140斤;(2)扬花盛期亩喷蚕粪原液10斤,兑水140斤;(3)灌浆初期亩喷蚕粪原液15斤,兑水140斤;(4)于穗分化、扬花、灌浆期各喷1次;(5)不喷的作对照。每小区面积为0.2亩, Silkworm excrement is a high-quality organic fertilizer containing nitrogen, phosphorus and potassium. In 1977, we studied on the experience of foliar dressing on silkworm excrement in Xiangtan, Hunan Province, and carried out comparative experiments. The silkworm excrement was sprayed on more than 7,000 hectares of latter rice in our company and the yield was significantly increased. Experimental methods Experimental fields were located in the happiness of the seven teams and the top ten teams, the experiment is divided into five treatments: (1) young panicle early stage of silkworm excrement sprayed 7 kg, watered 140 kg; (2) flowering period Mu per kilogram of silkworm excrement 10 kg, watered 140 kg; (3) mu in the early grouting Jiang mu liquid spray 15 kg, watered 140 kg; (4) in the spike differentiation, flowering, filling each spray 1; Do not spray as a control. Each plot area of ​​0.2 acres,