The results of stepwise multiple regression analysis show that OM, AK, AP, and CEC are the key tobacco quality-limiting factors.
逐步回归显示，土壤有机质、速效磷、速效钾和阳离子交换量对烟叶品质有较大的影响；
The results of stepwise multiple regression analysis show that OM, AK, AP, and CEC are the key tobacco quality-limiting factors.
逐步回归显示，土壤有机质、速效磷、速效钾和阳离子交换量对烟叶品质有较大的影响；
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