农业环境科学学报2011，Vol.30Issue(5)：930-937,8.
转双价(Bt+CpTI)棉种植对土壤速效养分和酶活性的影响
Effects of Transgenic Bt + CpTI Cotton Planting on the Soil Available Nutrients and Enzyme Activities
摘要
Abstract
In this study, three-room rhizobox method was used to collect soil samples from different zones of cotton root. This experiment compared the effects of transgenic Bt + CpTI cotton SGK321 and conventional cotton SHIYUAN321 on soil available nutrients (NH4+-N, NO3--N and available P) and enzyme activities( urease, alkaline phosphatase and catalase ) at different zones( Si, S2, S3 ) in three growing stages(40 d, 50 d and 60 d). The results showed that, compared to the conventional cotton, planting transgenic Bt+CpTI cotton improved soil P transforming to the available form in the S2 zone, while the content of NO3--N decreased in the S2 zone and S3 zone. No significant differences were observed in soil activities of urease, alkaline phosphatase, catalase and NH4+-N among three root zones. Principal component analysis showed that the changes of soil available nutrients and enzyme activities were mainly affected by the growth stages, the impact of transgenic Bt + CpTI cotton on soil available nutrients and enzyme activities was very limited.关键词
转双价棉/土壤酶活性/土壤养分/三室根箱Key words
transgenic Bt+CpTI cotton/ soil enzyme activity/ soil nutrients/ three-room rhizobox分类
农业科技引用本文复制引用
娜布其,赵建宁,李刚,杨殿林,红雨,娜日苏,刘玲..转双价(Bt+CpTI)棉种植对土壤速效养分和酶活性的影响[J].农业环境科学学报,2011,30(5):930-937,8.基金项目
转基因生物新品种培育重大专项(2011ZX08012-005,2008ZX08012-004) （2011ZX08012-005,2008ZX08012-004）
中央级公益性科研院所基本科研业务费专项资金(农业部环境保护科研监测所)资助项目 （农业部环境保护科研监测所）
