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转基因抗虫棉对土壤养分和酶活性的影响(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2011年05期
Page:
21-24
Column:
研究论文
publishdate:
2011-09-30

Article Info:/Info

Title:
Effects of insectresistant transgenic cotton on soil nutrients and enzyme activities
Author(s):
YU Yuanchun1 LENG Chunlong12 SHU Honglan*
1.College of Forest Resources and Environment, Nanjing Forestry University, Nanjing 210037, China; 2.Jiangxi Wuning  Environment Protective Bureau, Wuning 332300, China; 3.College of Art, Jiangxi University of Economics and Finance,Nanchang  330032, China; 4.Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, Nanjing 210042, China
Keywords:
insectresistant transgenic cotton soil nutrients soil enzyme activity
Classification number :
S158.4;S714
DOI:
10.3969/j.jssn.1000-2006.2011.05.005
Document Code:
A
Abstract:
Effects of insectresistant transgenic cotton on soil nutrients and enzyme activities were studied after planting insectresistant transgenic cotton for 5 and 10 years. The results revealed that there were no significant differences for soil organic matter, total nitrogen, hydrolysable nitrogen and available phosphorus between soil planting with insectresistant transgenic cotton and that with nontransgenic cotton, but soil available potassium increased. Compared with soil planting with nontransgenic cotton, soil dehydrogenase activity significantly increased after 5 years,and soil catalase activity also significantly increased after 10 years planting with transgenic cotton. In the collection period of insectresistant transgenic cotton, soil total nitrogen and available potassium decreased, by contrast,soil pH and organic matter increased.

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Last Update: 2011-09-30