摘要
以黑农41为材料研究了种植密度对高产春大豆株高、叶面积指数、光合势、干物质积累分配及产量的影响。结果表明:随密度的增加,株高、最大叶面积指数及光合势呈上升趋势,处理间光合势在鼓粒期差异最大,处理间群体干物质积累量的差异主要出现在鼓粒后;提高鼓粒期群体的光合势,增加鼓粒期间的物质生产是实现大豆高产的关键。以45万株/hm2处理产量最高(5547.81kg/hm2),干物质积累总量为14663.1kg/hm2。
The effect of plant density on the changing trends of plant height and leaf area index（LAI）, leaf area duration, dry matter accumulation and distribution, yield of Heinong 41 were studied under the condition of high yield in Xinjiang in this experiment. The result showed that plant height, LAI and leaf area duration were heightened along with the increase of density. The difference of leaf area duration of different managements was the largest while podding. The colony accumulation difference of different managements appeared after podding. Improving the leaf area duration of colony and increasing the matter product while podding are the key for obtaining high yield of soybean. The comprehensive performance of 45×10^4 plants per hm^2 was the best, with the yield of 5547.81kg per hm^2 and dry matter accumulation of 14663.1 kg per hm^2.
出处
《大豆科学》
CAS
CSCD
北大核心
2006年第1期1-5,共5页
Soybean Science
基金
新疆维吾尔自治区高校科研基金项目(XJEDU2004G07)
新疆维吾尔自治区科技兴农办项目
关键词
春大豆
密度
生长动态
干物质积累
Spring soybean
Plant density
Growth tendency
Dry matter accumulation
