萝卜施用氮磷钾肥料效应的试验

在施用有机肥和不施有机肥条件下,对萝卜进行不同氮磷钾肥料量级的田间试验,分析氮肥、磷肥、钾肥对萝卜产量的影响,确定氮肥、磷肥、钾肥的合理的用量。试验结果表明:施用有机肥的时,在保证磷和钾的供应前提下,增加氮肥萝卜产量基本保持不变,由一元二次方程对氮素进行拟合,随着氮肥投入的增加,萝卜产量变化差异不大;在不施有机肥和施有机肥的小区,在保证氮、钾肥用量的前提下,增施磷肥能够增加萝卜的产量,前者比后者效应更加显著;在不施有机肥和施用有机肥的小区,在保证氮、磷肥用量的前提下,增施钾肥对萝卜产量增加效应不明显。从氮磷钾肥料对萝卜产量指标分析看,以施氮7 kg/667 m2、磷6 kg/667 m2、钾10 kg/667 m2肥料的产量最佳。

The Effect of NPK Fertilizers Application on Radish

In organic fertilizers and applied are no conditions,the fertilizer to be different nitrogen PK fertilizers material level field tests and analyses P,K fertiliser nitrogen,and to the influence of the output to determine the fertiliser nitrogen,P,K fertilizers reasonable volume.Test results indicate that apply organic fertilizers,phosphate and potassium to ensure that the fertiliser nitrogen supply and increase the production of basic remain unchanged by quadratic equation of one variable N proposed to be,as...