氮肥对油菜籽产量及质量的影响

Effect of Nitrogen Fertilizer on Yield and Quality of Rapeseed

为研究氮肥对春油菜产质量的影响,试验以不施氮肥为对照(CK),设置4个氮肥用量,N1:90 kg/hm^(2),N2:150 kg/hm^(2),N3:210 kg/hm^(2),N4:270 kg/hm^(2),研究了油菜产量性状和品质特征。结果表明,随着氮肥用量的增加,油菜有效角果数、每角粒数、千粒质量、产量和干物质积累量随着氮肥用量的增加呈逐渐增加的趋势,N3处理和N4处理间产量没有显著差异,且在N3处理时油菜籽含油率最高,因此施氮210 kg/hm^(2)是油菜实现优质高产的适宜施肥量。

In order to study the effect of nitrogen fertilizer on the yield and quality of spring rapeseed,four nitrogen fertilizer rates were set without nitrogen fertilizer(CK):N1:90 kg/hm^(2),N2:150 kg/hm^(2),N3:210 kg/hm^(2),N4:270 kg/hm^(2).The yield and quality characteristics of rapeseed were studied.The results showed that the number of effective kernels,kernels per kernels,thousand kernels mass,yield and dry matter accumulation of rapeseed increased gradually with the increase of nitrogen fertilizer dosage.There was no significant difference in yield between N3 treatment and N4 treatment,and the oil content of rapeseed was the highest under N3 treatment.Therefore,nitrogen application of 210 kg/hm^(2)is suitable for high quality and high yield of rapeseed.