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1试验目的通过玉米肥效对照示范,在常规施肥、配方肥和不施肥情况下,产量的变化与玉米“3414”试验产量进行对比,以弥补“3414”肥料试验的精确性,减少误差,校正“3414”肥料参数,综合比较肥料投入、作物产量、经济效益、肥料利用率等指标,客观的评价测土配方施肥效益,为配方技术参数的校正及优化肥料配方提供依据。
1 The purpose of the experiment Through corn fertility control demonstration, under conventional fertilization, fertilizer and non-fertilization, the yield changes compared with the corn “3414 ” test yield to make up for “3414 ” fertilizer test accuracy, reduce Error, correction “3414” fertilizer parameters, comprehensive comparison of fertilizer inputs, crop yield, economic benefits, fertilizer utilization and other indicators objective evaluation of soil testing and fertilizer efficiency, formulating technical parameters for the correction and optimization of fertilizer formulations provide the basis.