摘要
以北丰-14为供试品种,研究了大豆在不同密度、施肥量处理下,氮、磷、钾平衡吸收关系。结果表明:大豆在生育期中植株氮、磷、钾积累量间以及三要素与干物质积累量间均呈极显著的线性相关关系。单产200kg/667m2大豆群体,每生产100kg大豆籽粒需N8.32kg,P2O52.20kg,K2O3.21kg;N∶P2O5∶K2O=1∶0.26∶0.39。
In this experiment, taking Beifeng 14 as experiment material, the authors studied the relation of balance assimilation of N, P and K under treatments of different density and fertilization. The result showed that it was very obvious linearity correlation among accumulation of N, P and K, and between accumulation of N, P and K and accumulation of dry matter. It needed to assimilate N 8.32kg,P_2O_5 2.20kg,K_2O 3.21kg to produce 100kg seeds in the yield that could produce more than 200kg/seeds per 667m^2, and the ratio of N, P_2O_5 and K_2O was (1∶0.26∶0.39.)
出处
《中国油料作物学报》
CAS
CSCD
北大核心
2004年第1期51-54,共4页
Chinese Journal of Oil Crop Sciences
基金
内蒙古自治区科技厅"九五"重大科技攻关项目(960101)
