[1]李伟群,张久明,迟凤琴,等.秸秆不同还田方式对土壤团聚体及有机碳含量的影响[J].黑龙江农业科学,2019,(05):27-30.[doi:10.11942/j.issn1002-2767.2019.05.0027]
　LI Wei-qun,ZHANG Jiu-ming,CHI Feng-qin,et al.Effects of Different Straw Returning Methods on Soil Aggregate and Organic Carbon Content[J].HEILONGJIANG AGRICULTURAL SCIENCES,2019,(05):27-30.[doi:10.11942/j.issn1002-2767.2019.05.0027]
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秸秆不同还田方式对土壤团聚体及有机碳含量的影响

《黑龙江农业科学》[ISSN:1002-2767/CN:23-1204/S] 卷: 期数: 2019年05期 页码: 27-30 栏目: 出版日期: 2019-05-10
Title:
Effects of Different Straw Returning Methods on Soil Aggregate and Organic Carbon Content
作者:
李伟群1; 张久明1; 迟凤琴1; 匡恩俊１; 李梓瑄１; ２; 杨忠赞１; ２; 刘宝林３; 宿庆瑞1
1．黑龙江省农业科学院 土壤肥料与环境资源研究所／黑龙江省土壤环境与植物营养重点实验室／黑龙江省肥料工程技术研究中心，黑龙江 哈尔滨 150086；２.东北农业大学 资源与环境学院，黑龙江 哈尔滨 150030；3.嫩江中储粮北方农业开发有限公司，黑龙江 嫩江 161400
Author(s):
LI Wei-qun1; ZHANG Jiu-ming1; CHI Feng-qin1; KUANG En-jun1; LI Zi-xuan1; 2; YANG Zhong-zan1; 2; 〖JP〗LIU Bao-lin３; SU Qing-rui1
1.Soil Fertilizer and Environment Resources Institute,Heilongjiang Academy of Agriculture Sciences/Key Laboratory of Soil Environment and Plant Nutrition of Heilongjiang Province/Heilongjiang Fertilizer Engineering Technology Research Center,Harbin 150086，China;2.College of Resources and Environment,Northeast Agricultural University,Harbin 150030，China
关键词:
秸秆还田; 土壤团聚体; 土壤结构; 土壤有机碳
Keywords:
straw returning; soil aggregates; soil structure; soil organic carbon
DOI:
10.11942/j.issn1002-2767.2019.05.0027
文献标志码:
A
摘要:
为提高玉米秸秆综合利用率，本文采用小区试验方法，研究连续5年不同秸秆还田方式对土壤化学性质、土壤团聚体比例及有机碳含量和玉米产量的影响。结果表明：秸秆连续还田后较对照明显增加土壤有机质含量和土壤pH。秸秆还田处理较对照增加土壤>2.00 mm和0.25～2.00 mm团聚体粒级含量，其中秸秆全量还田处理的>2.00 mm粒级团聚体比例较对照提高38.0%；秸秆全量还田除<0.053 mm土壤团聚体有机碳含量均较对照降低，其余均增加；秸秆1/2还田可以有效增加土壤大团聚体粒级含量（＞0.25 mm），提高＞0.053 mm粒级团聚体中有机碳含量，明显提高玉米产量。由此可知，秸秆还田后有效改善土壤结构，增强通气与保水能力，提高土壤团聚体的稳定性，并增加土壤有机碳含量和改善土壤团聚体结构，并提高作物产量。
Abstract:
In order to improve the comprehensive utilization rate of corn straw,in this paper,plot experiment method was used to study the effects of different straw returning methods on soil chemical properties,soil aggregate ratio,organic carbon content and maize yield for five consecutive years.The results showed that after continuous straw returning,soil organic matter content and soil pH were significantly increased compared with the control.The straw returning treatment made the soil have higher content of aggregate in grain size of >2.000 mm and 0.250-2.000 mm of soil compared with the control,and the proportion of aggregate in >2.000 mm with the total straw mulching treatment was increased by 38.0% compared with the control.The organic carbon content of soil aggregates in <0.053 mm was lower than that of the control in total straw mulching,and the rest was higher.Straw 1/2 returning to the field can effectively increase the grain size content of soil large aggregate (>0.250 mm),increase the organic carbon content of aggregate in grain size of >0.053 mm,and significantly increase the yield of corn.Therefore,straw mulching can effectively improve soil structure,enhance ventilation and water retention capacity,improve the stability of soil aggregates,increase soil organic carbon content and improve soil aggregates structure,and improve crop yield.

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备注/Memo

收稿日期：2018-12-07

基金项目：国家重点研发计划（2018YFD0200407，2016YFD0300806）；国家自然科学基金（41771284）；中央引导地方科技发展专项（ZY18A04）。
第一作者简介：李伟群（1980-），男，硕士，助理研究员，从事土壤肥力研究。 E-mail：lwqun@126.com。

更新日期/Last Update: 2019-06-12