Microsoft Word - 14陈家宙.doc 关键词： 红壤；干旱程度；玉米；阈值反应 [gap=1676]Key words： Red soil; Soil drought degree; Maize; Threshold response
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degree of soil drought 土壤干旱度
Root vigor was affected not only by the degree of soil drought but also by the duration of soil moisture.
苗木根系活力除了受土壤干旱协迫程度的影响之外，还受到干旱持续时间的影响。
The effect of roots growth and nutrient metabolism of winter wheat was studied under different degree of soil sustaining drought.
研究了不同程度土壤持续干旱对冬小麦根系生长及营养代谢的影响。
Root vigor of the seedlings was affected not only by the degree of soil moisture, but also adapt the drought in short time and the root vigor had a high level.
苗木的根系活力不仅与土壤含水量有关，而且能在短时间内适应干旱，从而维持较高的根活力水平。
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