土壤学报2011，Vol.48Issue(2)：405-411,7.
复合型PGPR和苜蓿对新垦地土壤培肥效果研究
EFFECTS OF PGPR AND ALFALFA ON SOIL BUILDING OF NEWLY-RECLAIMED LAND
摘要
Abstract
Effect of planting legume crops and inoculation of Plant Growth Promoting Rhizobacteria (PGPR)and legumes on soil building in newly-reclaimed land was studied with a field experiment laid out in a newly-reclaimed slopeland in Beibei, Chongqing, China. The experiment field was divided into several plots, which were all planted with affaffa, but inoculated separately with nil, rhizobia or rhizobia + other PGPR (including associative azotobacters, P-releasing bacteria, and K-releasing bacteria). Results show that the incubation of rhizobium and PGPR in combination significantly increased organic matter, total N, total P and total K, available P and available K in the soil, by 33.5％, 22. 7％, 3.8％ , 11.5％, 11.4％ and 22.3％, respectively, over the incubation of rhizobia alone and by42.2％, 58.8％ , 8％, 12.6％ , 37.2％ and 40.2％, respectively, over the treatment of no incubation. Furthermore, the treatment of rhizobium + PGPR also significanfiy increased the nodule weight, plant height, fresh root weight, fresh aboveground biomass and plant's total nitrogen by 44. 5％, 33.2％, 77.3％ ,76.7％ and 17.7％ respectively over the treatment of rhizobia. It is obvious that plant affaffa in combination of incubation of proper PGPR has a much better effect on soil building, thus accelerating the process of ameliorating newly-reclaimed poor land.关键词
生物培肥/根际有益微生物/紫花苜蓿/根瘤菌/土壤养分Key words
Soil quality improvement/ PGPR/ Alfalfa/ Rhizobium/ Soil nutrients分类
农业科技引用本文复制引用
韩光,张磊,邱勤,石杰,胡正峰..复合型PGPR和苜蓿对新垦地土壤培肥效果研究[J].土壤学报,2011,48(2):405-411,7.基金项目
国家高技术研究发展计划项目(20060110Z4047)资助 （20060110Z4047）
