以天祝县测土配方施肥推荐氮、磷、钾化肥量为基础，研究了不同硼肥用量对油菜主要农艺性状和产量的影响。结果表明，适宜施硼量对油菜主要农艺性状有一定的改良效果，对产量构成因子均有正效应，能提高单位面积产量。结合天祝县油菜生产实际，天祝县在测土配方施肥推荐氮、磷、钾化肥用量基础上(N 180 kg/hm2、P2O5 180 kg/hm2、K2O 30 kg/hm2)，施硼量以7.5 kg/hm2较为适宜。

Based on the recommended amount of n， P and K fertilizer in Tianzhu County， the effects of different amount of borax fertilizer on main agronomic characters and yield of rapeseed were studied. The results showed that the appropriate amount of boron could improve the main agronomic traits of rapeseed， and had positive effects on the yield components， and could increase the yield per unit area. Combined with the practical rape production in Tianzhu County， based on the recommended amount of N， P and K fertilizer(N 180 kg/hm2、P2O5 180 kg/hm2、K2O 30 kg/hm2) in soil test formula fertilization， 7.5 kg/hm2 boron application rate is more suitable.

S565.4

公益性行业(农业)科研专项资助(201103001)。