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中国农学通报 ›› 2015, Vol. 31 ›› Issue (27): 224-228.doi: 10.11924/j.issn.1000-6850.casb15030151

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

免耕栽培不同秸秆覆盖量下土壤温度变化研究

张敬涛,刘婧琦,赵桂范   

  1. 黑龙江省农业科学院佳木斯分院,黑龙江省农业科学院佳木斯分院,黑龙江省农业科学院佳木斯分院
  • 收稿日期:2015-03-18 修回日期:2015-04-17 接受日期:2015-05-15 出版日期:2015-09-23 发布日期:2015-09-23
  • 通讯作者: 赵桂范
  • 基金资助:
    国际合作项目 “窄行大豆免耕关键技术合作研究” (WB13B109)。

Study on Soil Temperature Variation of No-till Cultivation with Different Amounts of Stalk Mulch

张敬涛,刘婧琦 and 赵桂范   

  • Received:2015-03-18 Revised:2015-04-17 Accepted:2015-05-15 Online:2015-09-23 Published:2015-09-23

摘要: 试验采用微区定位方法, 研究免耕栽培条件下不同秸秆覆盖量对大豆田土壤温度的影响。结果表明: 秸秆覆盖平作免耕栽培处理间随秸秆覆盖量增加, 土壤温度呈下降趋势, 较 0%秸秆覆盖常规秋翻垄作对照比, 0、 30、 60、 100%秸秆覆盖免耕处理分别降低 0.35~4.39、 0.45~4.55、 0.57~5.34、 0.77~6.14℃; 各生育时期间以苗期各处理土温与对照差异最大, 开花以后土温差异变小; 各处理不同土层间降温幅度为0.46~3.62℃, 仍以苗期降幅最大为 3.62℃。因此, 在高纬度寒地应用秸秆还田免耕技术关键是在苗期采用增温措施, 促进幼苗发育。

关键词: 胡麻, 胡麻, 栽培技术, 高产栽培

Abstract: Micro area locating method was used in order to study the effect of different amounts of stalk mulch on soil temperature in no-till soybean field. The results indicated that: with the increase of the amount of stalk mulch, the soil temperature decreased. Compared to the control of 0% stalk mulch conventional fall ploughing ridge culture, the soil temperature of no-till treatments with 0%, 30%, 60%, 100% stalk mulch decreased by 0.35-4.39, 0.45-4.55, 0.57-5.34 and 0.77-6.14℃ respectively. Among different growth stages, seedling stage had the biggest temperature difference compared to the control, and the difference became small after bloom. The temperature drop range was 0.46-3.62℃ between different soil layers, seedling stage had the largest drop range of 3.62℃. Therefore, the key of stalk returning no-till technique application in the high latitude cold region was adopting temperature increase measures at the seedling stage in order to promote seedling growth.