There was a range for parameters of fertilizer requirement, so it should be adjusted according to soil fertility and yield.

需肥量参数具有较大幅度的变化，应按照土壤肥力以及产量目标来合理调整并确定这个重要参数。

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The Belgians, Italians and others have suggested that the pact should be revised so that it applies to cyclically adjusted deficits, to allow more automatically for the effects of booms and busts.

ECONOMIST: Europe's single-currency rules