当前位置: 首页 > 文章 > 4个玉米品种氮素利用效率的比较研究 玉米科学 2010,18 (2) 91-95
Position: Home > Articles > Comparison on N Utilization Efficiency of Four Maize Varieties Journal of Maize Sciences 2010,18 (2) 91-95

4个玉米品种氮素利用效率的比较研究

作  者:
颜军;杨德光
单  位:
东北农业大学
关键词:
玉米;地上部干物重;子粒氮含量;氮利用效率
摘  要:
以郑单958、农大108、京单28、京科308为试验材料,研究了不同玉米品种产量、干物重、氮含量、氮利用效率的差异。结果表明:4个玉米品种产量、总吸氮量存在一定程度的差异,氮利用效率差异均不显著。植株干重、子粒氮含量、总吸氮量与产量显著相关,子粒氮含量对产量的直接影响最大。植株干重与子粒氮含量显著相关,植株干重越大子粒氮含量越高;子粒氮含量与植株干重对产量的影响不同品种之间存在差异;氮收获指数与产量呈负相关。
译  名:
Comparison on N Utilization Efficiency of Four Maize Varieties
作  者:
YAN Jun,YANG De-guang(Northeast Agricultural University,Harbin 150030,China)
关键词:
Maize;Aboveground dry matter weight;Grain N content;N utilization efficiency
摘  要:
The difference in the yield,biomass,N content and N use efficiency of four maize hybrids(Zhengdan958,Nongda108,Jingdan28 and Jingke308) were studied.The experiment was suggested that there were difference in the yield and plant total amount of N absorption among four maize hybrids,but the N utilization efficiency was just the opposite.There were obvious mutuality in the plant dry matter weight,grain N content and total amount of N absorption with yield,grain N content had maximal immediate effect to yield.There were obvious positive correlation in the plant biomass and grain N content.The difference were observed the effect of plant dry matter weight and grain N content to yield among hybrids.

相似文章

计量
文章访问数: 8
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊