氮肥不同施用量对油研599养分吸收量及产量的影响

Effects of Different N Fertilizer Application Amount on Nutrients Uptake Amount and Yield of Youyan 599(a Rape Variety)

为了确定贵州省黔北地区油菜氮肥施用的适宜用量范围,进行了氮肥不同施用量对油菜养分吸收量及产量的影响试验。结果表明:在试验所给氮肥用量范围内,施氮能提高油菜的产量以及植株养分吸收量和经济效益;适宜氮肥用量,有利于提高N的农学效益。认为:在贵州省黔北地区油菜上施用N180 kg/hm2、P2O590 kg/hm2、K2O 120 kg/hm2、硼肥15 kg/hm2时可以达到产量效益的最大化。

A field experiment was conducted to investigate the appropriate N fertilizer application amount of rape in Qianbei district in Guizhou province.The results show that N fertilizer can increase the yield,nutrients uptake amount and economic benefits of rape.The appropriate N fertilizer amount is advantageous to its agricultural benefit.The appropriate fertilizer amount in Qianbei district is： N 180.00kg/hm^2,P2O5 90.00kg/hm^2,K2O 120.00kg/hm^2 and borax 15.00kg/hm^2.