[1]王光华　金剑　潘相文　周克琴　刘晓冰.不同氮肥对大豆根圈土壤酶活性和氮营养分布的影响[J].大豆科学,2003,22(03):213-217.[doi:10.11861/j.issn.1000-9841.2003.03.0213]
　Wang Guanghua Jin Jian Pan Xiangw en Zhou Keqin Liu Xiaobing.FEECTOF DIFFERENT N FERTILIZERS ON SOIL ENZYME ACTIVITY ANDN NUTRITION DISTRIDUTION ACROSS SOYBEAN RHIZOSPHERE[J].Soybean Science,2003,22(03):213-217.[doi:10.11861/j.issn.1000-9841.2003.03.0213]
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不同氮肥对大豆根圈土壤酶活性和氮营养分布的影响

《大豆科学》[ISSN:1000-9841/CN:23-1227/S] 卷: 第22卷 期数: 2003年03期 页码: 213-217 栏目: 出版日期: 2003-08-25
Title:
FEECTOF DIFFERENT N FERTILIZERS ON SOIL ENZYME ACTIVITY ANDN NUTRITION DISTRIDUTION ACROSS SOYBEAN RHIZOSPHERE
文章编号:
1000 -9841(2003)03 -0213 -05
作者:
王光华　金剑　潘相文　周克琴　刘晓冰
中国科学院东北地理与农业生态研究所, 哈尔滨150040
Author(s):
Wang Guanghua 　Jin Jian 　Pan Xiangw en 　Zhou Keqin 　Liu Xiaobing
Northeast Institute of Geography and Agricultural Ecology , Chinese Academy of Sciences , Harbin , 150040
关键词:
氮肥; 大豆; 土壤酶; NO-3 -N ; NH+4 -N
Keywords:
N fertilizer ; Soybean ; Soil enzyme ; NO-3 -N ; NH+4 -N
分类号:
S 565.1
DOI:
10.11861/j.issn.1000-9841.2003.03.0213
文献标志码:
A
摘要:
氮是植物生长最重要的营养元素。本文报道了利用根箱系统, 5 种不同的氮肥(硝酸钠、硫酸铵、尿素、LP -40 和LP -70)处理对典型黑土条件下生长的大豆根圈3 种土壤酶活性及NO-3 -N 和NH+4 -N 含量分布的影响。结果表明, 除了长效缓释氮肥LP -70 处理的亚硝酸还原酶活性表现为根圈亏缺外, 其它氮肥处理的硝酸还原酶、亚硝酸还原酶和尿酶活性在根圈土壤中要大于非根圈土壤。对NO-3 -N 含量在大豆根圈分布结果证明, 当硫酸铵、尿素、LP -40 和LP -70 处理时, 它在大豆根圈表现为亏缺效应, 而当供给硝酸钠处理时,NO-3 -N 含量在大豆根圈表现为强烈的累积效应。不同氮肥对NH+4 -N 含量分布的影响结果为;当供给硫酸铵处理时, NH+4 -N 在根面区少量累计, 而当其它4 种氮肥处理时, NH+4 -N 表现为亏缺。本试验结果证明不同氮肥对大豆根圈土壤酶活性及氮营养状况影响很大。
Abstract:
Nitrogen is the most important nut rient fo r plant g row th .The effect s of sodium nit rate , ammoniumsulfate , urea , and two slow -releasing urea fertilizers(LP -40 , LP -70)on the NO-3 -N , NH+4 -N , and soilenzymes activity dist ribution across soybean (Glycine max L .Merrill , Variety of Heinong 35)rhizospherew ere in veslig ated in the research.The results showed that ex cepted nitrous reductase activity w as low er in therhizosphere of LP -70 t reatment , all soil enzymes including nit rate reductase , nitrous reductase and urease activityw as higher in soy bean rhizosphere than that in non -rhizosphere .NO-3 -N was the main source of ni trogen ,w hich was depleted in the rhizosphere in the t reatments of ammonium sulfate , urea , LP -40 and LP -70 , butg reatly accumulated in the sodium nitrate t reatment .NH+4 -N concentration increased slightly in the rhizospherein the ammonium sulfate treatment , and decreased in the rhizosphere w hen suppling with the o ther fourkinds of N fertilizers .From this experiment we concluded that the dif ferent N fertilizers had great effect on soilenzyme activi ty and N nutri tion distribution across soybean rhizosphere .

参考文献/References:

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备注/Memo

基金项目:中科院东北地理与农业生态研究所所长基金和中国科学院知识创新工程项目(KZCX2 -SW -416)的一部分。　

作者简介:王光华(1966 -), 男, 副研究员, 主要从事大豆生理生态和环境微生物研究。

更新日期/Last Update: 2016-12-31