The results showed that all factors were influent to soybean yield, while the influencing sequence from large to small is : soil mois ture >K fertilizer >N fertilizer> P fer...

• 结果表明,各因素对大豆产量均有影响,其作用大小顺序是:水分>钾肥>氮肥>磷肥,且钾肥是负效应。