河南省桑园土壤养分分析初报

Preliminary Report on Soil Nutrition Analysis in Mulberry Orchard in Henan Province

为更好地推广配方施肥,对河南省桑蚕生产重点县进行了桑园土壤主要养分含量测试分析,发现淅川、内乡两地桑园土壤缺乏有机质,速效磷、速效钾含量较低,全氮含量较高,今后应增施有机肥和磷钾肥,施用桑园专用肥。

To better popularize formula fertilization,the major nutrients content in mulberry orchard soil was determined and anlysed in Henan silkworm production key counties.It was found that the orchard soil in Xichuan and Neixiang lacked organic matter,the available phosphorous and available potassium was relatively low,the total nitrogen content was high.It is suggested to increase the application of organic matter and phosphorous and potassium,and to apply special fertilizer to mulberry orchard.