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0引言为获取拜城县玉米测土配方施肥参数,2008年完成了玉米氮、磷、钾三因素四水平肥效试验。1材料和方法1.1试验区概况
0 Introduction In order to obtain the formula parameters of corn soil testing in Baicheng County, the three-factor, four-factor fertilizer efficiency test of maize nitrogen, phosphorus and potassium was completed in 2008. 1 Materials and Methods 1.1 Test Area Overview