六种作物不同生育期吸收按、硝态氮的特性

作物学报 ›› 1999, Vol. 25 ›› Issue (02): 221-226.

六种作物不同生育期吸收按、硝态氮的特性

何文寿;李生秀;李辉桃

宁夏农学院，宁夏水宁750105

收稿日期:1998-06-11 修回日期:1998-09-15 出版日期:1999-03-12 网络出版日期:1999-03-12
通讯作者: 何文寿

Characteristics of Absorbing Ammonium and Nitrate Nitrogen of Six Crops at Different Growth Stages

He Wenshou;Li Shengxiu; Li Huitao

Ning.xia Agricultural College, Yongning, Ningzia, 750105

Received:1998-06-11 Revised:1998-09-15 Published:1999-03-12 Published online:1999-03-12
Contact: He Wenshou

摘要/Abstract

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。

关键词: 溶液培养, 硝态氮吸收比例, 动力学参数

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

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

何文寿;李生秀;李辉桃. 六种作物不同生育期吸收按、硝态氮的特性[J]. 作物学报, 1999, 25(02): 221-226.

He Wenshou;Li Shengxiu; Li Huitao. Characteristics of Absorbing Ammonium and Nitrate Nitrogen of Six Crops at Different Growth Stages[J]. Acta Agron Sin, 1999, 25(02): 221-226.

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