THE INTERACTION BETWEEN CO2 AND PLANT NUTRITION - COMMENTS

被引:15
|
作者
AGREN, GI
机构
[1] Department of Ecology and Environmental Research, Swedish University of Agricultural Sciences, Uppsala, S-750 07
关键词
NITROGEN CONCENTRATION; NITROGEN PRODUCTIVITY; NITROGEN USE EFFICIENCY;
D O I
10.1007/BF00341479
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
Effects of CO2 on plants are often confounded with effects of nutrition. Coleman et al. (1993) showed that nitrogen concentrations in plants grown under different CO2 levels did not differ if plants of equal sizes were compared but varied at equal times and equal sizes for different levels of nitrogen additions. I will suggest why this must occur under the conditions of the experiment. I will also suggest why nitrogen productivity should be used to interpret experimental results rather than the dubious nitrogen use efficiency.
引用
收藏
页码:239 / 240
页数:2
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