DANG Shu,ZHANG Zhenyu,CHEN Dianyuan,et al.Nitrogen Nutrition Diagnosis and Quantitative Control in HighQuality Rice Varieties[J].HEILONGJIANG AGRICULTURAL SCIENCES,2019,(04):22-24.[doi:10.11942/j.issn10022767.2019.04.0022]
优质水稻品种氮素营养诊断与定量调控
- Title:
- Nitrogen Nutrition Diagnosis and Quantitative Control in HighQuality Rice Varieties
- Keywords:
- rice; the amount of nitrogen; yield
- 文献标志码:
- A
- 摘要:
- 为提高氮肥利用率，以空育131和龙粳21为试验材料，探讨不同基因型优质水稻品种在不同的施氮模式下生物量和产量差异，建立水稻无损氮素营养诊断与定量调控的方法和指标。结果表明：空育131总生物量随着施氮量的增加而呈现递增趋势，龙粳21处理3（氮肥总施用量100 kg·hm2）生物量最大，处理4（氮肥总施用量130 kg·hm2）次之；两个品种均表现为处理4（氮肥总施用量130 kg·hm2）理论产量和实际产量较高，处理1（不施用氮肥）理论产量和实际产量较低。
- Abstract:
- In order to improve the utilization rate of nitrogen fertilizer，establish the methods and indexes of diagnosis and quantitative regulation of rice nondestructive nitrogen nutrition,Kongyu 131 and Longjing 21 in different genotype varieties were tested on difference in biomass and yield under different nitrogen treatment conditions.It was observed that the total biomass of Kongyu131 increased with the increase of nitrogen application rate.The biomass of Longjing 21 treatment 3 (total nitrogen application rate 100 kg·hm2) was the largest,followed by treatment 4 (total nitrogen application rate 130 kg·hm2).Both varieties showed higher theoretical and actual yields in treatment 4 (total nitrogen application rate 130 kg·hm2).Treatment 1 (no nitrogen fertilizer) had lower theoretical yield and lower actual yield.
参考文献/References:
［1］Willimas E J,Hutehinson G L,Fehsenfeld F C.Nox and N2O emissions from 5011.Global Biogeoehem[J].Cyeles,1992(6):351388.
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备注/Memo
收稿日期：20181029