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中国农学通报 ›› 2014, Vol. 30 ›› Issue (33): 20-25.doi: 10.11924/j.issn.1000-6850.2014-1232

所属专题: 玉米 耕地保护

• 农学 农业基础科学 • 上一篇    下一篇

覆膜方式对坡耕地春玉米产量、土壤水分和养分的影响

周丽娜,李鹏,雷金银,赵营   

  1. 宁夏农林科学院农业资源与环境研究所,宁夏惠农渠管理处,宁夏农林科学院农业资源与环境研究所,宁夏农林科学院农业资源与环境研究所
  • 收稿日期:2014-04-28 修回日期:2014-11-04 接受日期:2014-10-30 出版日期:2015-01-08 发布日期:2015-01-08
  • 通讯作者: 赵营
  • 基金资助:
    宁夏回族自治区科技攻关计划项目“宁南山区土地退化及生产力恢复关键技术研究与示范”(2011ZYN156)

Effect of Plastic Film Mulching Methods on Spring Maize Yield, Soil Water and Nutrients in Slope Farmland

周丽娜,李鹏,雷金银 and 赵营   

  • Received:2014-04-28 Revised:2014-11-04 Accepted:2014-10-30 Online:2015-01-08 Published:2015-01-08

摘要: 为了探讨覆膜对宁南山区坡耕地春玉米栽培的可行性,寻求合适的覆膜方式。在宁南山区坡耕地条件下,通过田间小区试验研究了裸地平作(CK)、垄沟不覆膜(NM)、垄沟全覆膜(WM)和垄沟半覆膜(HM)4个不同覆膜方式对春玉米产量、土壤水分和养分含量的影响。结果表明,相对于CK处理,WM和HM处理能显著提高春玉米产量,分别提高了65.4%和62.5%。WM和HM处理也能增加0~80 cm土壤含水量和储水能力,提高土壤氮磷钾速效养分含量,较好地维持土地生产力。综合考虑春玉米产量、土壤储水保水能力和土壤肥力维持等因素,在宁南山区坡耕地春玉米植种中,垄沟全覆膜和垄沟半覆膜都是较好的覆膜栽培措施。

关键词: 综合评价, 综合评价

Abstract: The study aims to discuss whether plastic film mulching is suitable for spring maize cultivation in slope farmland in the Southern Mountain Region of Ningxia or not, and find the rational mulching methods. A field experiment was conducted in slope farmland in the Southern Mountain Region of Ningxia, to investigate the effect of 4 different mulching methods, conventional tillage (CK), no-plastic film mulching in ridge (NM), whole- plastic film mulching in ridge (WM) and half- plastic film mulching in ridge (HM), on spring maize yield, soil water and nutrients contents. The results indicated that spring maize yields were significantly increased in treatments WM and HM in contrast to treatment CK, the yield increment was 65.4% and 62.5%, respectively. Soil water content and storage capacity of 0-80 cm, soil available nutrients content of N, P, K were also increased in treatments WM and HM, and thus it was benefit for maintaining soil productivity. On comprehensive consideration of spring maize yield, soil water storage capacity and soil fertility maintaining, both whole-plastic film mulching and half-plastic film mulching in ridge could be good mulching methods for spring maize planting in slope farmland in the Southern Mountain Region of Ningxia.