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1试验目的“3414”不完全肥料效应试验是获得各种作物最佳施肥量、施肥比例、施肥时期、施肥方法的根本途径,也是筛选、验证土壤养分测试方法、建立施肥指标体系的基本环节。2试验材料2.1供试化肥:尿素N含量46%、重过磷酸钙P2O5含量46%、硫酸钾K2O含量50%。2.2供试作物:新玉29。2.3试验设计试验设重复,处理随机排列,试验小区的形状为长方形,每
1 The purpose of the experiment “3414 ” Incomplete fertilizer effect test is the fundamental way to get the best amount of fertilizers, fertilization ratio, fertilization period, fertilization method for a variety of crops, is also the basic way to screen, verify soil nutrient testing methods, establish fertilization index system Links. 2 Test Materials 2.1 Test Fertilizers: 46% of urea N content, P2O5 content of superphosphate 46%, K2O K2O 50%. 2.2 for the test crop: new jade 29.2.3 Experimental Design Experiment set up repeated treatment random arrangement, the shape of the test plot is rectangular, each