首页> 中文期刊> 《贵州农业科学 》 >油研599的平衡施肥效应

油研599的平衡施肥效应

             

摘要

为确定贵州省黔北地区油菜氮磷钾肥平衡施用的适宜用量范围,选用油研599设置8个处理对其进行了平衡施肥效应试验.结果表明:平衡施用氮、磷、钾、硼肥能明显提高油菜的株高、一次有效分枝数、主花序角果数、单株角果数、千粒重和籽粒产量,NPKB处理的茎秆、籽粒、植株的N、P、K养分吸收量明显高于PKB、NPB、NPK和NKB处理.表明,在贵州省黔北地区对油研599施用氮肥180 kg/hm2、磷肥90 kg/hm2、钾肥120 kg/hm2和硼肥15 kg/hm2时,可以达到产量效益最大化.%An experiment was conducted to determine the appropriate range of balanced fertilization used on rape in Qianbei region of Guizhou province by setting up eight treatments (CK, NPKB, PKB, NKB, NPB, NPK, NPKB+Zn and the local treatment). The results showed that the NPKB treatment is observably beneficial to plant height, first branch number, pod number of the main inflorescence, pod number per plant, thousand kernel weight and group yield and the absorptive amount of N, P and K is observably more than the PKB, NPB, NPK and NKB treatment. All above indicate that 180kg/hm2 N, 90 kg/hm2 P2O5, 120kg/hm2K2O, 15kg/hm2 B was the optimum fertilizing amount.

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