期刊论文

Effect of combined application of organic and inorganic fertilizers on soil microbial and carbon pool in double rice paddy field

中文

湖南农业大学学报(自然科学版)

1007-1032

2018

44

3

295-300

10.13331/j.cnki.jhau.2018.03.012

2012BAD15B04:国家科技支撑计划 2014BAC09B01:国家科技支撑计划 14K047:湖南省高等学校创新平台开放基金 14K048:湖南省高等学校创新平台开放基金

本校为第一机构

通过4年定位试验,研究了不施肥(WF)、不施氮肥(WN)、单施化肥(CF)、猪粪替代20%氮肥(ZF)、猪粪堆肥替代20%氮肥(DF)、沼渣沼液替代20%氮肥(ZYF)6种施肥处理对双季稻田土壤的酶活性、可培养微生物数量、微生物量碳(SMBC)含量、微生物量氮(SMBN)含量、有机质含量和碳库管理指数的影响。结果表明:3种有机无机肥配施能显著提高双季稻田土壤中可培养细菌和放线菌数量,微生物量碳、微生物量氮、总有机质和活性有机质含量以及碳库活度指数、碳库管理指数,但处理间存在差异,以DF效果最好;连续耕作4年后,DF处理的土壤中可培养细菌、真菌和放线菌数量以及SMBC、SMBN含量分别比CF的提高了67.94%、50.30%、 ...

To provide scientific basis for rational fertilization in double rice, effects of organic-inorganic fertilizer application on soil enzyme activities, microorganism activities, microbial biomass carbon (SMBC) content, microbial biomass nitrogen (SMBN) content, organic matters content and carbon pool management index were studied in double rice paddy field for four-year experiments. Six kinds of fertilizers were applied in this study, 1) without fertilizer(WF), 2)without N (WN), 3) chemical fertilizer only (CF), 4) pig manure alternative 20％ N f...