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钾是玉米生长发育必需的大量营养元素之一。钾对玉米的正常生长发育、产量形成、抗逆性及品质等有着重要作用。钾能促进光合作用和碳代谢,在低温寡照的气温条件下促进碳同化;钾能促进作物对氮吸收和蛋白质的合成;钾能调节原生质胶体性状,增加玉米抗旱,抗寒,抗病和抗倒伏能力;钾还能消除氮氮、磷磷磷肥施用过量而产生的不良影响。因此,在平衡氮,磷营养上有重要作用,总之,钾在玉米生产中起着十分重要的作用。
Potassium is one of the large number of nutrients necessary for the growth and development of corn. Potassium plays an important role in the normal growth and development, yield formation, stress resistance and quality of maize. Potassium promotes photosynthesis and carbon metabolism and promotes carbon assimilation at low temperature and under temperature. Potassium promotes nitrogen uptake and protein synthesis. Potassium regulates the traits of protoplasts and increases drought resistance, cold tolerance, disease resistance and resistance of maize Lodging capacity; potassium can also eliminate nitrogen and nitrogen, phosphorus and phosphorus fertilizer over the adverse effects. Therefore, the balance of nitrogen and phosphorus nutrition has an important role, in short, potassium in maize production plays a very important role.