期刊论文

Hu, Ya-Jun(yjhu@isa.ac.cn);Su, Yi-Rong(yrsu@isa.ac.cn)

中文

环境科学

0250-3301

2022

43

9

4636-4646

10.13227/j.hjkx.202111304

国家自然科学基金项目（41601260）；

本校为其他机构

针对喀斯特地区有机物料盈余、土壤养分贫瘠和易流失的特点,设置长期有机物料还田小区定位试验,试验包括6个处理:不施肥对照(CK) 、无机肥(NPK) 、无机肥+玉米秸秆(NPKS) 、无机肥+农家肥(NPKM) 、无机肥+滤泥(NPKL)和无机肥+甘蔗灰(NPKA).研究不同有机物料投入对土壤磷赋存形态和磷活化功能微生物(含有机磷矿化基因细菌)群落结构的影响.通过3 a断续的观测,结果表明,土壤全磷(TP) 、速效磷(Olsen-P)和二钙磷(Ca_2-P)含量呈逐年增加趋势,而氯化钙磷(CaCl_2-P)含量呈先降低再增加的趋势;与不施肥对照相比,有机物料投入尤其是滤泥配施能显著提高土壤全氮(TN) 、TP、 Olsen-P、CaCl_2-P和Ca_2-P含量...

Efficient utilization of organic materials based on the rich resources in the karst region can promote soil fertility. Microorganisms have a crucial influence on soil phosphorus availability. phoD is considered to be the encoding phosphatase gene that can reflect the hydrolysis of organophosphorus compounds for the soil bacterial community. Molecular analysis of the phoD-harboring bacterial gene provides insight into promoting soil phosphorus availability under different fertilization managements. However' the effects of organic materials on so...