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中国农学通报 ›› 2018, Vol. 34 ›› Issue (17): 95-98.doi: 10.11924/j.issn.1000-6850.casb17060098

所属专题: 玉米

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

连续3年玉米秸秆还田对土壤理化性状及作物产量的影响

丛艳静   

  1. 永安市土肥站
  • 收稿日期:2017-06-21 修回日期:2017-09-01 接受日期:2017-09-19 出版日期:2018-06-20 发布日期:2018-06-20
  • 通讯作者: 丛艳静
  • 基金资助:
    中央财政国家耕地质量保护与提升项目(2011,2012,2013)。

Maize Straw Returning for Three Consecutive Years: Effects on Soil Physical and Chemical Properties and Crop Yield

  • Received:2017-06-21 Revised:2017-09-01 Accepted:2017-09-19 Online:2018-06-20 Published:2018-06-20

摘要: 秸秆还田能增加土壤有机质含量,提高土壤养分,降低土壤容重,改善土壤理化性状。本研究结果表明,与秸秆还田前土壤的基础背景值和常规施肥的无秸秆还田(CK)相比,常规施肥实施玉米秸秆还田能有效提高土壤养分含量,土壤有机质、碱解氮、有效磷、速效钾含量均有不同程度增加,土壤容重下降,土壤理化性状得到改善,后作莴苣产量增加,同时能有效减少秸秆焚烧带来的环境污染问题,值得大力推广。

关键词: 种植密度, 种植密度, 播期, 施肥, 青稞, 灌浆特性

Abstract: Straw returning could increase soil organic matter content, improve soil nutrients, reduce soil bulk density, and enhance soil physical and chemical properties. In this paper, the effects of corn straw returning on soil physical and chemical properties and crop yield were studied by fixed-point monitoring method. The results showed that compared with the soil basal background value before returning and the conventional fertilization without straw (CK), conventional fertilization with straw returning could effectively improve soil nutrients content; soil organic matter, available nitrogen, available phosphorus and available potassium content increased in different degrees; soil bulk density decreased, soil physical and chemical properties were improved, the after crop lettuce yield increased. In addition, corn straw returning could effectively reduce the environmental pollution caused by straw burning, and was worth popularizing.

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