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蚕粪液是一种优质肥料,对农作物产量效果显著。省蚕桑研究所1975年在安康县大同公社永红大队试验,水稻增产6.5～14.5％,受到贫下中农欢迎。去年延安、宝鸡、渭南地区都进行了试验,获得显著增产。据合阳县林业站、农副公司在五个点上试验,增产11.2～30％。群众反映:蚕粪液喷施效果好。试验的作物有小麦、棉花、烤烟、马铃薯,喷施蚕粪液还能提高作物质量,如水稻秕谷率下降。根据科研部门化验分析,蚕粪一般含纯氮1.45％,比鸡粪和猪粪分别高40％和100％;含磷0.25％,比人粪尿高100％;含
Silkworm manure is a kind of high-quality fertilizer, which has remarkable effect on crop yield. Provincial sericulture Institute 1975 Ankang Datong commune Yonghong Brigade trial, rice yield 6.5 ~ 14.5%, welcomed by the poor lower middle peasants. Last year, Yan’an, Baoji and Weinan all carried out tests and achieved significant increases in output. According to Heyang County Forestry Station, agricultural and sideline companies in five points on the test, an increase of 11.2 to 30%. The masses reflect: silkworm drench spray good effect. The crops tested were wheat, cotton, flue-cured tobacco and potato. The application of silkworm excrement also improved the quality of crops, such as the decrease of the rate of rice grains. According to the analysis of scientific research departments, silkworm manure generally contain 1.45% of pure nitrogen, respectively, 40% and 100% higher than chicken manure and pig manure; phosphorus 0.25%, 100% higher than human waste;