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地力差减法在黄粘泥土玉米推荐施肥中的应用研究
Application of Dissimilar Subtraction Method of Soil Fertility in Recommend Fertilizer Practice for Maize Planting in Yellow Clay Soil
【摘要】 通过玉米小区试验研究 ,结果表明 :不同肥料的配合施用与不同施肥方式对玉米产量、化肥利用率、玉米主要经济性状都有直接的影响。在掌握当地土壤的空白田产量、平均实际产量等数据条件下 ,可望的目标产量与对应的氮、磷、钾肥施用量有确定的数量关系 ,在产前做到“因土定产 ,因产定肥”,达到计划施肥的目的。
【Abstract】 The results from the maize plot experiment show that the different fertilizer combinations and patterns affect the yield, fertilizer utilization rate and main economic characters directly. On the basic of grasping the average actual yield and the blank field, the expected yield can be determined by amounts of N, P and K applied to realize the aim of planned fertilizer application.
【关键词】 地力差减法;
黄粘泥土;
玉米;
施肥技术;
推荐施肥量;
化肥利用率;
【Key words】 dissimilar subtraction method of soil fertility; yellow clay soil; maize; fertilizer practice; recommend amount of fertilizer applied; fertilizer utilization rate;
【Key words】 dissimilar subtraction method of soil fertility; yellow clay soil; maize; fertilizer practice; recommend amount of fertilizer applied; fertilizer utilization rate;
【基金】 黔东南州科技基金 (合同编号 94 30 11)
- 【文献出处】 贵州农业科学 ,Guizhou Agricultural Sciences , 编辑部邮箱 ,2003年06期
- 【分类号】S513.06
- 【被引频次】8
- 【下载频次】71