结果表明，较高的氮素水平促进根系生长，迅速提高水稻根干重， 但同时降低根冠比。
The result is, high N-level can promote the root to grow, but the root cap ratio will comes down.
限根对不同品种油桃幼树叶片中可溶性蛋白含量变化和叶片相对含水量、比叶重的影响明显不同。
Root restriction presented remarkably different effects on the soluble protein contents, relative water contents and the specific weights of the leaves of the young trees of different varieties.
钼提高冬小麦根系的根干重、地上部干重，显著影响冬小麦的根冠比。
The other root parameters of the both cultivars were influenced by molybdenum deficiency.
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