福建农业学报2011，Vol.26Issue(2)：298-303,6.
深翻耕和连作对植烟土壤养分及其生物活性的影响
Effect of Deep Plowing and Continuous Cropping on Nutrient Level and Biological Activity in Soil for Tobacco Plantation
摘要
Abstract
Isolated pools were used to study the dynamic changes of nutrients and biological activity in soil. The results showed that (1) long-term cropping could result in soil nutrient imbalance, reduced urease, phosphatase and sucrase activities, lowered microbial biomass nitrogen, lessened number of bacteria and fungi, and increased microbial biomass carbon; and (2) deep plowing could promote nitrogen transformation, relieve acidification, and increase organic matters in the soil, conducive to tobacco growth. Furthermore, deep plowing could significantly increase soil phosphatase and sucrase activities. It had little effect on hydrogen peroxidase activity, and a negative effect on urease. Deep plowing could increase quantity of microbial biomass carbon and nitrogen in soil, which could promote the soil nutrient transformation and enzyme activities. Thus, it appeared that deep plowing could off set the harms of long-term continuous cropping on a tobacco plantation providing a significant direction for an improvement on the agricultural practice.关键词
烟草/深翻耕/连作/土壤养分/土壤生物活性Key words
tobacco/ deep plowing/ continuous cropping/ soil nutrients/ soil biological activity分类
农业科技引用本文复制引用
刘红杰,习向银,刘朝科,张涛,古力,赵志鹏,张重义..深翻耕和连作对植烟土壤养分及其生物活性的影响[J].福建农业学报,2011,26(2):298-303,6.基金项目
川渝中烟工业公司科技项目(2009YYJD) （2009YYJD）
