各调节物质调节了棉株生理活性。
Physiological activity of cotton was regulated by spraying those exogenous regulating substances.
从棉株根围土壤中分离到200多株土壤微生物。
More than 200 strains of soil microbes were isolated from cotton rhizosphere soil.
在不同的损害程度下，随着密度的增加棉株产量补偿能力减小。
Under the different harm degree, the cotton plants had less compensative ability as the density increased.
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