摘要
对 6年 61点次田间氮磷钾试验结果进行统计分析 ,得出陕西关中西部小麦测土平衡施肥参数的计算方法。用常年产量确定地力产量 ,用土壤养分测定值确定土壤养分当季利用系数 ,依地力产量确定目标产量、土壤供肥力 ,依土壤供肥力确定肥料利用率 ,根据各技术参数进行计算小麦施肥建议。
Statistics analysis on the test result of N?P?K field experiment obtained 61 sites in 6 years gave out the wheat balanced fertilizer application Parameters count methods in Western Guanzhong. By the methods,Average yield could be used confirm the land Productivity,tested Value of Soil nutrition could be used comfirm the soil nutrition utilization coefficient ,land Productivity could be used to the ensure the target yield and Soil Productivity,Soil Productivity could be used to know the fertilizer usage effeciency,all parameters could be used confirm fertilizer amount.
出处
《土壤肥料》
CSCD
北大核心
2002年第5期29-32,共4页
Soils and Fertilizers
