不同秸秆还田模式玉米产量和耕层土壤物理特性的研究
CSTR:
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

S341;S513

基金项目:

国家重点研发计划(2017YFD0300505-1);国家玉米产业技术体系项目(CARS-02-34);黑龙江省自然科学基金联合引导项目(JJ2019LH2428)


Studies on Yield of Maize and Physical Properties of Surface Soil under the Different Straw Returning Patterns
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    通过分析不同秸秆还田模式玉米耕层土壤物理性质和产量特征,探讨不同秸秆还田模式玉米产量差异及形成原因,为黑龙江省不同生态区玉米秸秆有效还田提供理论依据和技术支撑。试验以京农科728为供试品种,采用大区对比设计,设置常规垄作模式(CK)、覆盖还田免耕平作模式(J1)、翻埋还田垄作模式(J2)和碎混还田平作模式(J3)4个处理。不同秸秆还田模式产量表现为J2>J1>J3>CK,且以J2增产幅度最大,为8.70%;不同秸秆还田模式产量分别与穗数和穗粒数呈负相关和极显著负相关,与千粒重呈极显著正相关且以J2增幅最大,为11.89%。生育前期J3耕层土壤水热条件最优;生长发育关键期J2耕层土壤物理性状最优,尤以10~30 cm耕层土壤容重的下降,土壤孔隙度>1 mm大团粒结构的提高最为明显;J3次之。适宜的秸秆全量还田模式可促进玉米生长发育,有利于改善生育关键期耕层土壤物理性质,进而提高玉米产量。本研究推荐黑龙江省第一积温带的适宜玉米秸秆还田模式为翻埋还田垄作模式。

    Abstract:

    The yield characteristics and soil physical property were analyzed under the different straw returning patterns in order to discuss the reason for maize yield differences of different straw returning pattern, which would provide theoretical basis and technical support for maize straw returning effectively in different ecological regions of Heilongjiang Province. The conventional ridge farming mode(CK), no-tillage flat farming pattern with straw covering surface soil(J1), field ploughing pattern with straw turning in surface soil(J2) and field flat farming pattern with straw mixing in surface soil(J3) were set up by large area contrast design using Jingnongke 728 as experimental material. Yields of different straw returning pattern was J2>J1>J3>CK, and yield increase of J2was the largest, which was 8.70%; the yield under different straw returning pattern was negatively and significantly negatively correlated with spike number and grain number per spike, and was positively and significantly correlated with 1,000-grain weight,with the largest increase of 11.89% in J2. The hydrothermal condition of J3 was the best in the early growing period.The soil physical properties of J2were the best during the critical period of growth and development. In particular,the bulk density of surface soil decreased at 10-30 cm, and the soil porosity and>1 mm granule structure all increased most significantly. Suitable straw returning pattern can promote the growth and development of maize and improve the physical properties of surface soil in the key growth period, and then improve yield of maize. In this study, it was recommended that the best pattern for maize straw returning to the field in the first accumulative temperate zone of Heilongjiang Province was field ploughing pattern with straw turning in surface soil.

    参考文献
    相似文献
    引证文献
引用本文

葛选良,钱春荣,张锋,李梁,姜宇博,于洋,宫秀杰,郝玉波.不同秸秆还田模式玉米产量和耕层土壤物理特性的研究[J].东北农业科学,2022,47(3):88-93.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2019-11-08
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2024-11-09
  • 出版日期:
文章二维码