以冬油菜品种陇油7号为试验材料，在大田条件下，采用“3414”配方施肥设计，研究不同氮、磷、钾配比对陇油7号抗坏血酸过氧化物酶(APX)、过氧化物酶(POD)、过氧化氢酶(CAT)及超氧化物歧化酶(SOD)活性的影响。结果表明，钾肥对冬油菜各种酶活性的影响明显，并且在施N、P2O5、K2O量分别为270.0、225.0、337.5 kg/hm2时， APX、POD、CAT及SOD活性最高，分别比CK增加了97.4%、47.2%、41.9%和52.0%。而氮肥、磷肥对冬油菜各种酶活性的影响不明显。

In winter rape of longyou 7th for the test material， under field conditions， press“3414” combined application of different ratio of nitrogen， phosphorus and potassium， determining ascorbic acid enzyme (APX)， peroxidase (POD)， catalase (CAT) and superoxide dismutase(SOD) activities， studying the influence of the different proportion of NPK fertilizers to rape winter enzyme activity. The result shows that the influence of the nitrogen and phosphorus fertilizers on the activity of APX， POD， CAT and SOD are not significant， but the effects of potash rape on enzymatic activities are significant， and in N2P2K3 processing， namely N、 P、 K are 270.0、225.0、337.5 kg/hm2， which is 97.4%、47.2%、41.9%、52.0% higher than that CK， nitrogen， phosphatic are not significant on the antioxidant enzymes activities of winter repeseed.

S565.4