氮磷营养对小麦根系生长具有明显的调节作用。
Nitrogen phosphorus nutrition possess very fine adjustment action on root system growth of wheat.
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。
The effect of roots growth and nutrient metabolism of winter wheat was studied under different degree of soil sustaining drought.
适度的水分胁迫（土壤含水量为田间持水量的60％）对苗期小麦根系生长有一定的促进作用，可使根冠比增加，根系活力增大；
The growth of root was promoted, and increased in root top ratio value and activity of root under moderate water stress (water content of soil is 60% the content of field holding water).
施肥能够促进春小麦根系的生长发育，特别是促进浅层根量的增加，增强了作物的水分养分吸收。
Ameliorated root system was able to improve crop water use and nutrient absorption, and hence, crop yield and water use efficiency was increased.
结果表明：改进的根系生长分布模型比原有模型更能准确地模拟冬小麦根系的生长分布。
Results showed that the improved wheat root growth distribution model simulate the wheat root growth distribution better than original model.
结果表明：改进的根系生长分布模型比原有模型更能准确地模拟冬小麦根系的生长分布。
Results showed that the improved wheat root growth distribution model simulate the wheat root growth distribution better than original model.
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