氮素营养对赣油14号产量及经济性状的影响

通过不同氮肥处理的田间试验 ,研究氮素营养对赣油 14号产量及经济性状的影响。试验结果表明 :施纯氮 2 2 5kg/hm2是三系杂交油菜赣油 14号的最佳施肥水平 ,产量达到 2 396 .6kg/hm2 ;产量构成因素以单株有效角果数对产量影响最大 ,其次是千粒重 ,每角粒数对产量影响较小 ;随着施氮量的增加 ,各处理平均株高明显降低 ,单株一次有效分枝数明显增多 ,每角粒数变化较小 ,千粒重和单株有效角果数呈先增后减的趋势

Effect of Different Nitrogen Application on the Yield and Economic Characters of Rapeseed - Ganyou 14

The experimental results showed that the best application amount of nitrogen for two-line hybrid rapeseed-Ganyou 14 was 225kg per hectare and the yield was 2396.6kg per hectare; and also showed that the number of pods/plant was most important in yield components, 1000-seeds weight was second, seeds per pod was little effect on the yield. As nitrogen increased, plant height decreased apparently, the number of 1 st branch/plant increased obviously, seeds per pod was little change, 1000-seeds weight and the number of pods/plant increased firstly and then decreased.