钾对幼苗的生长没有影响，所有偏回归系数均不显著。
K had no significant effects on tomato seedlings growth and the partial regression coefficients between them were insignificance.
钾对幼苗的生长没有影响，所有偏回归系数均不显著。
K had no significant effects on tomato seedlings growth and the partial regression coefficients between them were insignificance.
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