结果表明，氮磷钾与产量的关系基本一致，均呈抛物线回归关系。
As a result, nitrogen phosphorous potassium were basic consistent with the relation of yield, and all assume parabola regression relation.
结果表明，氮磷钾与产量的关系基本一致，均呈抛物线回归关系。
As a result, nitrogen phosphorous potassium were basic consistent with the relation of yield, and all assume parabola regression relation.
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