不同缓释过氧化钙对潜育环境下水稻土微生物特性的影响

doi:10.13287/j.1001-9332.202005.023

应用生态学报 ›› 2020, Vol. 31 ›› Issue (5): 1467-1475.doi: 10.13287/j.1001-9332.202005.023

不同缓释过氧化钙对潜育环境下水稻土微生物特性的影响

胡柯鑫^1,2, 董春华^2*, 罗尊长^1,2, 王玲玲^1,2, 周旋², 洪曦², 谢宜^1,2, 褚飞²

¹湖南大学研究生院隆平分院, 长沙 410125;
²湖南省土壤肥料研究所, 长沙 410125

收稿日期:2019-10-15 出版日期:2020-05-15 发布日期:2020-05-15
通讯作者: * E-mail: dch1001@126.com
作者简介:胡柯鑫, 男, 1994年生, 硕士。主要从事植物营养与施肥研究。E-mail: m18229864624@163.com
基金资助:
国家“十三五”重点研发计划项目(2016YFD0200809)、国家“十二五”科技支撑计划项目(2015BAD23B03)、湖南省科技创新资金项目(2019LS03-1)和长财教指[2019]157号(kq1907052)资助

Effects of different coated slow-release calcium peroxide on microbial characteristics of gleyed paddy soil

HU Ke-xin^1,2, DONG Chun-hua^2*, LUO Zun-chang^1,2, WANG Ling-ling^1,2, ZHOU Xuan², HONG Xi², XIE Yi^1,2, CHU Fei²

¹Longping Branch, Graduate School of Hunan University, Changsha 410125, China;
²Hunan Institute of Soil and Fertilizer, Changsha 410125, China

Received:2019-10-15 Online:2020-05-15 Published:2020-05-15
Contact: * E-mail: dch1001@126.com
Supported by:
This work was supported by the National “Thirteen Five-Year Plan” Key Reseach and Development Project (2016YFD0200809), the National “Twelfth Five-Year Plan” Science and Technology Support Project (2015BAD23B03), the Science and Technology Innovation Fund of Hunan Province (2019LS03-1), and the Changsha Finance Bureau and Changsha Education Bureau Instructions [2019] No. 157 (kq1907052).

摘要/Abstract

摘要： 为了解不同缓释过氧化钙对潜育化稻田土壤微生物特性的影响,于网室内进行潜育化稻田环境模拟试验,以不施过氧化钙为对照,探究过氧化钙粉末、过氧化钙颗粒与4种不同释氧效果的包膜过氧化钙在早稻分蘖期同等时期对潜育化稻田土壤活性有机碳、有效养分及微生物特性的影响。结果表明: 施用过氧化钙均能提高土壤活性有机碳、有效养分、微生物生物量及可培养微生物数量和酶活性,包膜过氧化钙对土壤微生物和酶活性的改善效果较好,其次依次为过氧化钙颗粒和过氧化钙粉末。包膜过氧化钙处理中,以乙基纤维素包膜效果最好,与不施过氧化钙处理相比,其土壤活性有机碳、微生物生物量碳、微生物生物量氮、微生物生物量磷分别显著提高19.4%、11.4%、121.5%、127.2%,土壤碱解氮和有效磷分别提高4.0%和45.5%;土壤可培养细菌和可培养微生物总量分别显著提高137.3%和113.7%,真菌和放线菌数量分别提高33.6%和44.7%;蔗糖酶、磷酸酶和脲酶活性分别显著提高92.4%、91.8%和112.5%,过氧化氢酶活性提高17.1%。研究结果可为包膜过氧化钙对潜育化稻田改良提供参考。

关键词: 缓释过氧化钙, 潜育环境, 土壤养分有效性, 微生物特性

Abstract: To explore the effects of different coated slow-release calcium peroxide on soil microbial characteristics in gleyed paddy field, we set seven treatments by simulation test in a greenhouse, including CK (none calcium peroxide), calcium peroxide powder, calcium peroxide particle and other four coated slow-release calcium peroxide treatments. Samples were collected in same tillering stage of early season rice. The results showed that all the applications of calcium peroxide could improve the concentrations of active soil organic carbon, soil available nutrients, soil microbial biomass, culturable microorganism population, as well as soil enzyme activity. The coated slow-release calcium peroxide had stronger effects than calcium peroxide particles and calcium peroxide powder. The calcium peroxide coated by ethyl cellulose was the most effective, which enhanced soil active organic carbon, soil microbial biomass carbon, nitrogen, phosphorus by 19.4%, 11.4%, 121.5% and 127.2%, soil alkaline hydrolysis nitrogen and available phosphorus by 4.0% and 45.5%, soil culturable bacteria and culturable microorganism population by 137.3% and 113.7%, fungi and actinomyces number were increased by 33.6% and 44.7%. The enzyme activities of invertase, phosphatase, urease as well as catalase were increased by 92.4%, 91.8%, 112.5% and 17.1%, respectively. The results could provide reference for improving gleyed paddy field with coated calcium peroxide.

Key words: slow-release calcium peroxide, latent environment, soil nutrient availability, microbial characteristics

胡柯鑫, 董春华, 罗尊长, 王玲玲, 周旋, 洪曦, 谢宜, 褚飞. 不同缓释过氧化钙对潜育环境下水稻土微生物特性的影响[J]. 应用生态学报, 2020, 31(5): 1467-1475.

HU Ke-xin, DONG Chun-hua, LUO Zun-chang, WANG Ling-ling, ZHOU Xuan, HONG Xi, XIE Yi, CHU Fei. Effects of different coated slow-release calcium peroxide on microbial characteristics of gleyed paddy soil[J]. Chinese Journal of Applied Ecology, 2020, 31(5): 1467-1475.

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不同缓释过氧化钙对潜育环境下水稻土微生物特性的影响

Effects of different coated slow-release calcium peroxide on microbial characteristics of gleyed paddy soil

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