Soybean growth and development needs "startup-N", and the best effect of the "startup-N" on the soybean N-accumulation is until the V3 period.
大豆生长需要一定量的“启动氮”，“启动氮”的作用维持到V3期对大豆氮的积累和产量形成效果最好。
The biological effect of protectively applied nitrogen on nodulation N-fixing activity, nitrogen forms in Xyloid liquid, and amount of assimilated nitrogen in soybean were studied.
从大豆结瘤、固氮活性、木质部溶质氮形态以及植株同化氮量论证了保护性施氮的生物学效应。
The production, demonstrated that N-application on the leaf surface could relax the supplying-demanding relation in soybean flowering period.
生产验证叶面给氮可以缓解大豆花荚期氮素供需之间的矛盾。
Soybean oil treatment increased digestible crude fat intake, and decreased digestible non-fiber carbohydrate intake and fecal N output.
补充大豆油使可消化粗脂肪的摄取提高，而减少可消化非纤维碳水化合物，另外粪氮排出量降低。
Soybean oil treatment increased digestible crude fat intake, and decreased digestible non-fiber carbohydrate intake and fecal N output.
补充大豆油使可消化粗脂肪的摄取提高，而减少可消化非纤维碳水化合物，另外粪氮排出量降低。
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