摘要
研究了夏大豆中油－８９Ｄ亩产２６２．１ｋｇ各项生理指标：叶面积系数，开花期、结荚期、鼓粒期分别为３．９８、５．８０、４．９１；总光合势１８．２万ｍ￣２·日，平均净光合生产率４．８１ｇ／ｍ２·日；氮磷总积累量分别为２２．２８ｋｇ和３．１３ｋｇ，每生产１００ｋｇ籽粒需吸收氮８．５０ｋｇ，磷１．１９ｋｇ，总干物质积累８７６．４７ｋｇ，粒茎比０．５１，经济系数０．３０。
The results of the study on physiological index of summer sowing soybean Zhongyou-89Dyielded 262.1 kg/mu of showed that leaf area index was 3.98 on flowering,5.80 on poddingand 4.91 on seed filling;The total photosynthetic power was 18.2×1 0￣4m￣2/day,and averagenet photosynthetic rate was 4.81g/m￣2·day;The total accumulation of N and P were 22. 54kgand 3. 13kg, and it needs 8. 60kg N and 1.19kg P in formulation of 100kg seed; The total accumulation of dry material was 876.47kg,the ratio of grain/stem was 0. 51, and the economic index was 0. 30.
出处
《大豆科学》
CSCD
北大核心
1994年第3期185-192,共8页
Soybean Science
关键词
大豆
生理指标
叶面积系数
Leaf area index
Photosynthetic power
The accumulation and distribution ofdry material and N and P
Physiological index
