氮肥调控对花生农艺性状和产量的影响

Effect of Nitrogen Fertilizer Regulation on Agronomic Characters and Yield of Peanut

为探讨氮肥施用量对花生农艺性状和产量的影响,提高花生单产水平。以远杂9102、开农176、驻花2号、豫花23号4个品种为供试材料,设置不施氮(0)、中氮(150 kg/hm 2)和高氮(300 kg/hm 2)3个氮肥处理,采用裂区试验设计,研究不同氮肥处理对花生农艺性状和产量的影响。结果表明,在中氮处理中主茎高、侧枝长、结果枝数、果针数及荚果数显著高于对照和高氮处理,随着花生荚果的逐渐成熟,中氮处理在饱果率、百仁重和产量方面极显著高于对照和高氮处理。综合花生农艺性状及产量表现,中氮处理(150 kg/hm 2)氮素施用量最好。

In order to improve the yield of peanut,the effect of nitrogen application on agronomic characters and yield of peanut was studied.In this study,Yuanza 9102,Kainong 176,Zhuhua 2 and Yuhua 23 were selected as test materials and three different levels of nitrogen fertilizer treatments were used,no nitrogen(0),medium nitrogen(150 kg/hm 2)and high nitrogen(300 kg/hm 2).Split-plot experiment was conducted to study the effects of different nitrogen fertilizer treatments on the agronomic characters and yield of peanut.The results showed that the agronomic characters of medium nitrogen application were significantly higher than those of the control and high nitrogen application.With the gradual maturity of peanut pods,medium nitrogen application was significantly higher than that of the control and high nitrogen application in terms of full fruit rate,100 kernel weight and yield.Taken together,medium nitrogen(150 kg/hm 2)performed the best.