CAJ | 학술논문

从滨海盐碱土中分离筛选到分解秸秆、产胞外聚合物的耐盐碱细菌,通过土柱和盆栽试验研究其与有机物料相互作用对盐碱土团聚体形成以及植物生长的影响.结果表明,盐碱土中接种既分解秸秆又产胞外聚合物的耐盐碱细菌(菌株 M6),配施未腐熟秸秆,直接在盐碱土中腐熟分解,团聚体形成效果最好,大团聚体含量增加 60% 以上;施加玉米秸秆与施腐熟有机肥相比,前者更有利于盐碱土大团聚体的形成;盐碱土中接种既分解秸秆又产胞外聚合物细菌对团聚体形成的促进作用优于单功能分解秸秆细菌(菌株 J2)或者分泌胞外聚合物细菌(菌株 DF-2);菌株 M6 对盐碱环境下玉米的出苗、生长存活及干物质的积累有促进作用.
종빈해염감토중분리사선도분해갈간、산포외취합물적내염감세균,통과토주화분재시험연구기여유궤물료상호작용대염감토단취체형성이급식물생장적영향.결과표명,염감토중접충기분해갈간우산포외취합물적내염감세균(균주 M6),배시미부숙갈간,직접재염감토중부숙분해,단취체형성효과최호,대단취체함량증가 60% 이상;시가옥미갈간여시부숙유궤비상비,전자경유리우염감토대단취체적형성;염감토중접충기분해갈간우산포외취합물세균대단취체형성적촉진작용우우단공능분해갈간세균(균주 J2)혹자분비포외취합물세균(균주 DF-2);균주 M6 대염감배경하옥미적출묘、생장존활급간물질적적루유촉진작용.
Column and pot culture experiments were carried out to study the effects of saline-alkali-tolerant bacteria screened from coastal saline-alkali soil combined with organic matter on the formation of saline-alkali soil aggregates and the growth of corn.Results showed that,the inoculation with bacterial strain M6 that can decompose straw and secrete extracellular polymer substances combined with straws that decompose directly in soil has the best effect on the formation of saline-alkali soil aggregates.The percent of large macroaggregates increased to more than 60%.Compared with the decomposed manure the undecomposed straws has a better effect on the formation of saline-alkali soil aggregates.Saline-alkali soil inoculated with bacterial strain M6 has a better effect on the formation of soil aggregates compared with inoculation with bacteria of single function that can decompose straw or secrete extracellular polymer substances.Seed germination,livability and dry weight of maize were all promoted under the inoculation with bacterial strain M6.