摘要
采用3个玉米品种、3个施氮水平在陇东早地上研究了氮肥对玉米产量和品质的影响。结果表明，在设计氮肥0～225kg／hm^2水平下，施氮肥越多，玉米产量越高；随施氮水平提高，玉米蛋白质含量提高0．52～1．61个百分点，蛋白质产量提高145．69～327．93kg／hm^2;不同施氮水平对玉米赖氨醒含量影响不显著；施氮水平与品种共同作用决定了玉米蛋白质含量。
Thc effect of nitrogen fertilizer on the yield and quality of corn was studied with three cultivars of corn and three application rates of N. The result shows as following;under designed application rate of N（0～225 kg/hm^2） ,the more N is applied, the higher the yield of corn is. With the increasing application rate of N, the protein yield increases 0.52 to 1.61 percentage points, and the protein yield increases 145.69 to 327.93 kg/hm^2. Different application rate of N has no significant effect on Lysine content of corn. Application rate of N and cultivars of corn together determine the protein content of corn.
出处
《甘肃农业科技》
2006年第2期9-11,共3页
Gansu Agricultural Science and Technology
基金
国家"十五"攻关项目"北方旱区粮食作物品质调优数据研究"的部分内容
关键词
旱地玉米
施氮量
产量
品质
Corn in semi-arid area
Application rate of NI Yield
Quality
