生态学报2001，Vol.21Issue(4)：588-592,5.
氮锌硒肥配合施用对白三叶的固氮作用与氮转移的影响
Effect of application of nitrogen, zinc and selenium on fixation of nitrogen and transfer of nitrogen fixed in white clover
华珞 1韦东普 2白玲玉 2姚允寅2
作者信息
- 1. 首都师范大学地理系,
- 2. 中国农业科学院原子能利用研究所,
- 折叠
摘要
Abstract
A pot experiment was carried out to study the effects of combined applications of nitrogen, zinc and selenium fertilizer on dry weight of herbage, nitrogen fixation and transfer of nitrogen from white clover to ryegrass in mixed culture in a mountain yellowbrown soil. The results showed as follows: (1) Dry weight of ryegrass in mixed culture was higher than that of ryegrass in mono culture; Dry weight of both herbage in mixed culture and ryegrass in mono culture in treatment of N46Zn0Se5 were the highest, with the value of 25.38g/pot and 19.93g/pot, respectively. (2) The growth of herbage was improved by nitrogen application, but was not affected by zinc, selenium application. (3) The nitrogen of white clover in mixed culture from nitrogen fixation ranged from 57.600%～77.528%. (4) Transfer of nitrogen from white clover to ryegrass in mixed culture was 0.316%～12.251%.关键词
氮肥/锌肥/硒肥/配合施肥/生物固氮/氮的转移分类
农业科技引用本文复制引用
华珞,韦东普,白玲玉,姚允寅..氮锌硒肥配合施用对白三叶的固氮作用与氮转移的影响[J].生态学报,2001,21(4):588-592,5.
