title: [Effects of returning maize straw into field on dynamic change of soil microbial biomass C, N and P under different promoted decay condition].
abstract: A 2-year field experiment of wheat-maize rotation was conducted on a cinnamon soil of east Hebei Province to study the effects of returning maize straw into field on the dynamics of soil microbial biomass C, N and P, and their relationships with soil nutrients and enzyme activities. The results showed that under the condition of returning maize straw combined with applying chemical fertilizer to adjust straw C/N, the application of effective microorganisms could increase soil microbial biomass C, N and P in each crop growth period, advance their peak time, and better regulate soil nutrient supply, compared with no application of effective microorganisms. Soil microbial biomass had a significantly positive correlation with soil enzyme activities, but its correlation with soil hydrolysable N and available P was strongly affected by crop growth and fertilization system.
authors.affiliation: Department of Agronomy, Hebei Normal University of Science and Technology, Changli 066600, China. zdxzjj@163.com
authors.forename: Dianxue
authors.initials: D
authors.lastname: Zhang
authors.forename: Zhiqing
authors.initials: Z
authors.lastname: Han
authors.forename: Dongpo
authors.initials: D
authors.lastname: Li
authors.forename: Wei
authors.initials: W
authors.lastname: Liu
authors.forename: Shuguo
authors.initials: S
authors.lastname: Gao
authors.forename: Dongjun
authors.initials: D
authors.lastname: Hou
authors.forename: Liansheng
authors.initials: L
authors.lastname: Chang
mesh_terms: D002244:Carbon / Q000378:metabolism*; D015169:Colony Count, Microbial; D009584:Nitrogen / Q000378:metabolism*; D018547:Plant Stems; D012037:Refuse Disposal / Q000379:methods; D012987:Soil / Q000032:analysis*; D012988:Soil Microbiology; D003313:Zea mays / Q000254:growth & development
chemical_list: D012987:Soil; D002244:Carbon; D009584:Nitrogen