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中国农学通报

中国农学通报 ›› 2003, Vol. 19 ›› Issue (3): 26-26.

所属专题： 生物技术； 玉米； 烟草种植与生产

• 目次 • 上一篇    下一篇

氮肥基因型差异对玉米吸氮量的反应

向春阳,凌碧莹,关义新,马兴林,张宝石   

  • 出版日期:2003-06-25 发布日期:2003-06-25

Effect of Nitrogen Fertilizer and the Genotypes on Nitrogen Uptake of Maize

Institute of Crop Breeding and Cultivation, Chinese Academy of Agricultural Sciences, Beijing 0008; .Shenyang Agriculture University, Shenyang 0   

  • Online:2003-06-25 Published:2003-06-25

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摘要： 田间试验研究了11个玉米杂交种在不同施氮条件下的吸氮量。结果表明，玉米吸氮量具有明显的基因型差异。在低氮(N2)处理中，子粒、秸秆、地上部吸氮量高低品种相差分别为1.060、0.134、1.125g/kg，在高氮(N4)处理中，分别为0.836、0.154、0.954g/kg。不同基因型玉米的吸氮量差异低氮条件比高氮条件更大。施氮量对玉米吸氮量有显著的影响。玉米子粒、秸秆、地上部吸氮量和相应的产量呈极显著的正相关

关键词: 油茶, 油茶, 土壤, 有效铜, 相关性

Abstract: The nitrogen(N) uptake by 11 maize hybrids in a field trial with three replications at four rates of N supply were researched. Results showed that the N uptake is significantly different among the genotypes. The different of N uptake by grain, straw and biomass of aerial part between highest and lowest genotype in N2 treatment are 1.060,0.134 and 1.125g/kg, respectively, and that in N4 treatment are 0.836,0.154 and 0.954g/kg,respectively. The difference of N uptake by different genotypes in low N treatment is higher than in high N treatment. N fertilizer rate influence the N uptake by the maize remarkably. There is very significant positive correlate between N uptake by grain, straw and aerial part and corresponding outputs of that.