The heavy soil root disease was caused by the unbalanced soil microflora after continuous vegetable cropping in green house.

蔬菜设施生产过程中的连作方式致使作物根区土壤微生物区系失衡，引起土传病害的流行。

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Under drought conditions, the order of 3 varieties in deep soil root density and the ratio increment of root to stem was ranked as follows: Brooklawn, Impact, SupraNova.

干旱条件下，土壤深层根系密度、根冠比增加的顺序依次为布鲁克、英派克、苏比纳。

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The constitutive equations of the soil-root composite, which express the stress-strain relationship, were derived under the hypothesis of isotropy.

在弹性、横观各向同性条件下，计算得出了表征土壤-根系复合体应力-应变关系的本构方程。

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They say the roots develop better. But Jeffrey Dinslage, president of Nature Hills Nursery in Omaha,Nebraska, points out that bare-root roses come without soil.

VOA: special.2010.06.15

Bare-root plants have no soil on their roots.

VOA: special.2009.03.03

And now, for the first time in centuries, grapevines are taking root in soil that was once considered infertile.

BBC: The Negev desert wine route

Two to three inches of mulch spread around plants, trees and shrubs will slow water evaporation from the soil, help cool root systems and inhibit weeds.

CNN: X-rated yards save the environment

Thanks to the Federal Reserve and other destructive creations of government, the process of creative destruction rarely takes root in American soil anymore.

FORBES: Give Creative Destruction A Chance