钾肥,是水稻生长过程中必需的三大主要养分之一,作用是促进植株对氮、磷养分的吸收,参予植株体内养分的运输和细胞的光合作用。特点是在植株体内转移性较好,可以从老叶(组织)转移到新生幼嫩部分被再利用。如水稻前期缺钾,不但影响植株对其它养分的吸收和体内养分的输送,满足不了前期生长所需的营养; Potassium is one of the three main nutrients necessary for rice growth. Its function is to promote the absorption of nitrogen and phosphorus nutrients in plants and to participate in nutrient transport and photosynthesis in plants. It is characterized by good metastasis in the plant and can be reused from the old leaf (tissue) to the young part of the newborn. Such as pre-rice potassium, not only affect plant absorption of other nutrients and the transfer of nutrients in the body, can not meet the pre-nutrition required for growth;