核农学报2012，Vol.26Issue(9)：1322-1325,1321,5.
连作对马铃薯土壤微生物区系和产量的影响
EFFECTS OF CONTINUOUS CROPPING ON SOIL MICROFLORA AND YIELD OF POTATO
摘要
Abstract
Soils with continuous cropping potato for 1, 3 and 5 years were used as test materials to study variations of microflora in rhizophere and potato yields. Results showed that to study the numbers of bacteria and actinomycetes decreased with the increase of continuous cropping years, while the numbers of fungi was in an increasing trend, and were doserved in the changes in bacteria, fungi and actinomycetes between crop rotation and continuous cropping for 1, 3 and 5 significant difference years. The number of Cellulose-decomposing bacteria for 1, 3 and 5 years decreased by 21.4% ,42.9% and 50.0,% respectively, with the number of ammonifying bacteria decreased by 13.0% ,39.1% and 60.9% , and the number of azotobacter decreased by 2.6% , 17.1% and 27.6% , compared to those in soil with the crop rotation soil. The increase of continuous cropping years, the yields of potato decreased slightly with the increase of continuous cropping years.关键词
马铃薯/连作/微生物区系/产量Key words
potato/continuous cropping/microflora/yield分类
农业科技引用本文复制引用
谭雪莲,郭晓冬,马明生,刘高远,张平良,吕军峰,郭天文..连作对马铃薯土壤微生物区系和产量的影响[J].核农学报,2012,26(9):1322-1325,1321,5.基金项目
国家自然科学基金课题（41161042）,甘肃省农业生物技术研究与应用开发项目（GNSW-2009-20）,甘肃省旱作区水资源高效利用重点实验室开放基金课题（HNSJJ-2011）资助 （）
