...薯蚕豆间作；根系分布；根含水量；根系活力 [gap=998]Key words： potato and broad bean intercropping； roots distribution； root water content； root activity ...
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roots growth distribution 根系生长分布
distribution of roots 根分布定理
relative distribution of roots 根的相对分布
The water -saving principle, effect and impact to crop roots distribution are analysed and the technology standard is also presented in this paper.
文章分析了膜上灌的节水原理、节水效果及对作物根系分布的影响，并提出了其技术规范。
Roots in soil profile of the mixed stands show a well distribution.
混交林的根系在土壤剖面上，垂直分布趋于均匀。
The algebraic condition can be represented by the distribution of the roots of the generalized characteristic equation of the ellipse and parabola (hyperbola).
这些代数条件表示为由椭圆与抛物线，椭圆与双曲线确定的广义特征多项式的根的分布。
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