施用钾肥则效果不明显。
结果表明：施用钾肥都能增加产量，提高品质。
The results showed that applying potassium fertilizer could improve yield and quality.
在氮、磷充足的基础上施用钾肥，能提高农作物品质。
On the basis of applying sufficient amount of n, p, Potassium can improve the quality of farm products.
应用推荐