过氧化钙对潜育化稻田改良的研究进展  

Research Progress on Calcium Peroxide Improving Gleyed Paddy Field

作　　者：董春华[1,2] 曾跃辉[1] 李龙涛 李万明 李微艳 李海露[1,2] DONG Chun-hua;ZENG Yue-hui;LI Long-tao;LI Wan-ming;LI Wei-yan;LI Hai-lu(Hunan Academy of Agricultural Sciences,Changsha 410125,PRC;Hunan Institute of Soil and Fertilizer,Changsha 410125,PRC)

机构地区：[1]湖南省农业科学院,湖南长沙410125 [2]湖南省土壤肥料研究所,湖南长沙410125

出　　处：《湖南农业科学》2022年第1期100-104,共5页Hunan Agricultural Sciences

基　　金：湖南省自然科学基金(2020JJ4410);长沙市科技计划项目(kq1907052);湖南省农业科技创新资金项目(2020CX06-0303);湖南省土壤肥料研究所所长基金(2020tfs101)。

摘　　要：土壤潜育化是稻田退化的主要表现之一,易引发诸多问题。潜育化稻田因土壤缺氧,导致有毒有害还原性物质积累,致使土壤生物活性差、贫瘠化加重及作物生长发育受抑、品质下降、产量难以提高等。近年来,潜育化稻田面积呈明显扩大的趋势,已严重影响稻田生态环境质量,严重制约稻田生产力的提高。过氧化钙具有遇水释放氧气等特性,可有效削减土壤有毒有害还原性物质含量,因而在潜育化稻田改良方面逐渐受到国内外学者关注。综述了过氧化钙的缓释技术及其对潜育化稻田土壤理化性质、土壤微生物、土壤酶活性和作物产量及品质等方面的影响,并探讨可能存在的作用机制。最后,提出过氧化钙在潜育化稻田土壤改良方面尚未解决的问题并进行展望,以期为过氧化钙改良潜育化稻田土壤的理论研究及应用推广提供参考。Soil gleyization is one of the important manifestations of soil degradation,and is easy to cause many problems.Due to the lack of oxygen in the soil,the accumulation of toxic and harmful reducing substances in the gleyed paddy field leads to poor soil biological activity,aggravated barrenness,inhibited crop growth and development,decreased quality,and difficulty to improve yield.In recent years,the area of gleyed paddy fields has been significantly expanded,which has seriously affected the ecological environment quality of rice fields and seriously restricted the productivity of rice fields.Calcium peroxide has the characteristics of releasing oxygen in water,which can effectively reduce toxic and harmful reducing substances,so it has gradually attracted the attention of scholars in China and abroad in the improvement of gleyed paddy fields.This paper reviewed the slow-release technology of calcium peroxide,and the effects of calcium peroxide application on soil physical and chemical properties,soil microorganisms,soil enzyme activities,crop yield and quality in gleyed paddy fields,and discussed the possible mechanism.Finally,the unsolved problems of calcium peroxide in soil improvement of gleyed paddy fields were put forward and prospected,in order to provide reference for theoretical research and application promotion of calcium peroxide in soil improvement of gleyed paddy fields.

关 键 词：潜育化稻田 过氧化钙 缓释技术 作物生理 土壤理化性质 综述 

分 类 号：S156.8[农业科学—土壤学]