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。

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.

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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。

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.

youdao