氮肥不同施用量对油研599养分吸收量及产量的影响

摘要

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,施氮能提高油莱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、P2O5 90 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 180.00 kg/hm2, P2O5 90.00kg/hm2, K2O 120.00 kg/hm2 and borax 15.00kg/hm2.