期刊论文

中文

中国生态农业学报(中英文)

2096-6237

2017

25

10

1444-1455

10.13930/j.cnki.cjea.170169

贵州省毕节烟区烟叶产质平衡关键技术优化（201652050024149）； 中国烟草云南省公司科技计划项目（2015YN22）资助~~；

本校为第一机构

针对烤烟生产中施用有机肥后植烟土壤有机态氮素分解速率不易调控的问题,并为配制有机氮分解微生物菌剂提供优良菌株,本研究以化肥、牛粪、玉米秸秆、油枯处理下的烤烟根区土壤为材料,分离筛选出高活性氨化、亚硝化土著菌,并分别测定其对有机氮降解及氨氮分解的效果。结果表明:在烤烟生长旺长期,施用有机肥处理的土壤可培养细菌、真菌、放线菌、氨化菌数量均高于单施化肥处理;在烤烟成熟期,施用有机肥处理,烤烟根区土壤氨化菌、亚硝化菌、真菌、放线菌数量均高于单施化肥。通过各类菌株的土样来源分析,氨化作用强度较高的优势菌株均来源于有机肥处理的土样,植烟土壤施用有机肥较单施化肥能够获得...

The rate of organic nitrogen decomposition could be not controlled after organic fertilizer application in tobacco-planted soils. This problem could affect the normal growth and quality of tobacco leaves. In this study, chemical fertilizer, cow manure, maize straw and rapeseed cake were applied to the root-zone soil under tobacco. The study attempted to isolate highly active local ammonifiers and nitrosobacteria, and to determine the effects of the two bacteria types on the decomposition of organic nitrogen and ammonia. The study was to make po...