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研究了开花前叶喷ＫＨＣＯ３（２０ｍｇ／ｋｇ）对夏谷灌浆过程中蛋白质周转的影响。结果表明，钾处理能提高籽粒产量，增加籽粒总蛋白质、可溶性蛋白质和游离氨基酸的含量。钾对灌浆过程中籽粒蛋白质积累的影响与旗叶的氮素周转紧密相关。旗叶中蛋白水解酶活性在灌浆初期低于对照，后期高于对照
The effect of spraying KHCO3 (20 mg / kg) before flowering on the turnover of protein during grain filling was studied. The results showed that potassium treatment could increase the grain yield and increase the content of total protein, soluble protein and free amino acid. The effect of potassium on grain protein accumulation during grain filling was closely related to nitrogen turnover in flag leaves. Flag leaf proteolytic enzyme activity in early filling lower than the control, later than the control