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作 者 ：何文寿;李生秀;李辉桃

期 刊 ：作物学报 1999年 25卷 02期 页码：221-226

关键词：溶液培养；铵；硝态氮吸收比例；动力学参数；

Keywords:Solution culture, Absorbed ratio of ammonium-N to nitrate-N, Kinetic parameters,

摘 要 ：采用溶液培养研究了6种作物不同生育期吸收铵、硝态氮的特点及其吸收动力学。结果表明，在铵、销态氮等量共存条件下，6种作物对按、硝态氮的吸收比例因生育时期不同而有一定的阶段性和偏向性。这种偏向性可以用吸收动力学参数(Vmax，Km)予以解释。根据试验结果，对溶液培养方法的可靠性和准确性进行了评价。

Abstract:Solution culture experiments were conducted and the uptake kinetics and absorbing characteristics of ammonium and nitrate nitrogen were studied in six crops during differet growth stages by using a solution in which both ammonium-N and nitrate-N were present equally in amounts. The results showed th

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