秸秆还田对土壤理化性质和玉米产量的影响
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中图分类号: S513
文献标识码: A
DOI: 10. 13774 / j.cnki.kjtb.2019. 07. 017
文章编号: 1001-7119( 2019) 07-0097-07
Effects of Straw Returned to Soil on Soil Physical and Chemical Properties and Maize Yield
Wang Yongjie1,Shi Jianfeng1,Cui Hu2,Han Lu3,Yi Yuanjie1 ( 1.Qiqihar University School of Science Qiqihar Heilongjiang 161006,China; 2.Key Laboratory of Wetland Ecology and Environment,Northeast Institute of Geography and Agroecology,Chinese Academy of Science, Changchun 130102,China; 3. Graduate School of Chinese Academy of Sciences,Beijing 101408,China;
收稿日期: 2018-08-30 基金项目: 黑龙江省教育厅基本业务专项( 135109231) 。 作者简介: 王永洁( 1963-) ,女,辽宁庄河人,教授,博士研究生,研究方向: 水资源与水环境。
E-mail: wangyongjie-63@ 163.com。
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科技通报
第 35 卷
Meanwhile,the yield of maize was increased by 29. 2% and 54. 6% respectively,and the soil water content had a great effect on the efficiency of straw returning. Keywords: straw back to field; physical and chemical properties; corn pr Jilin University,Changchun 130026,China.)
Abstract: With the increase of agricultural scale and intensification level,the annual output of straw in China is as high as 760 million tons,and the environmental pollution problem is becoming more prominent. Straw as a carrier of matter,energy and nutrients is one of the important organic fertilizers. Therefore,to explore a can achieve the use of straw resources,but also reduce the ecological risk of straw treatment has become a hot spot in agriculture and the environment. In this study,the effect of straw returning to soil on physical and chemical properties and maize yield was studied by field experiment. The results showed that the soil organic matter,available nitrogen and available phosphorus increased by 10%,12. 1% and 43. 8% respectively. The content of available potassium in soil was not obvious and fluctuated within ± 0. 05mass%. The soil pH slightly increased. an increase of 0. 06 - 0. 28 units.
第 35 卷 第 7 期 2019 年 7 月
科技通报
BULLETIN OF SCIENCE AND TECHNOLOGY
Vol.35 No.7 Jul. 2019
秸秆还田对土壤理化性质和玉米产量的影响
王永洁 1,史健峰1,崔 虎2,3,韩 露4,易圆杰1
( 1.齐齐哈尔大学 理学院,黑龙江 齐齐哈尔 161006; 2.中国科学院湿地生态与环境重点实验室, 中国科学院东北地理与农业生态研究所,长春 130102; 3.中国科学院大学,北京 101408; 4.吉林大学 地球科学学院,长春 130026)
摘 要: 随着农业规模化、集约化水平的提高,我国秸秆年产量高达 7. 6×109 t,由此造成的环境污染问题日益凸显。 秸秆作为物质、能量和养分的载体,是重要的有机肥料之一。因此,探寻一种既能实现秸秆资源化利用,又能降低 生态风险的秸秆处理方式已经成为农业与环境领域的热点。本研究通过田间小区实验,探讨秸秆还田对土壤理化 性质和玉米产量的 影 响。结 果 表 明: 秸 秆 还 田 使 土 壤 有 机 质、速 效 氮、速 效 磷 含 量 分 别 提 高 了 10%、12. 1% 和 43. 8%; 土壤速效钾含量变化不明显,在±0. 05mass% 范围内波动; 各处理土壤 pH 值略有升高,增幅为 0. 06 ~ 0. 28 个单位。同时,秸秆还田使玉米均高和产量分别提高了 29. 2% 和 54. 6%,且土壤水分含量对秸秆还田的有效率影 响较大。 关键词: 秸秆还田; 理化性质; 玉米产量