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中国农学通报

中国农学通报 ›› 2014, Vol. 30 ›› Issue (31): 147-150.doi: 10.11924/j.issn.1000-6850.2014-1546

所属专题： 园艺

• 林学 园艺 园林 • 上一篇    下一篇

甘蓝不同节水灌溉模式下水氮利用及氮素运移研究

张鹏,井彩巧,宋学栋,孙振荣,袁宁,薛莲,王海鹏,蒲明   

  1. 兰州市农业科技研究推广中心,兰州市农业科技研究推广中心,兰州市农业科技研究推广中心,兰州市农业科技研究推广中心,兰州市农业科技研究推广中心,兰州市农业科技研究推广中心,兰州市农业科技研究推广中心,兰州市农业科技研究推广中心
  • 收稿日期:2014-05-30 修回日期:2014-05-30 接受日期:2014-09-05 出版日期:2014-11-20 发布日期:2014-11-20
  • 通讯作者: 井彩巧
  • 基金资助:
    甘肃省水资源高效利用重点实验室资金资助 “高原夏菜甘蓝、 花椰菜起垄覆膜种植模式水分利用效率研究” (2011GAAS06-2-4)。

Water and Nitrogen Utilization and Nitrogen Leaching of Different Irrigation Mode in Cabbage

  • Received:2014-05-30 Revised:2014-05-30 Accepted:2014-09-05 Online:2014-11-20 Published:2014-11-20

摘要： 为解决甘蓝过量灌溉和施肥问题，试验通过设置甘蓝不同节水灌溉模式、灌溉量和施氮量等因素，从水氮运移及其利用效率出发，探讨垄膜沟灌和膜下滴灌水肥利用规律。结果表明，膜下滴灌模式下施纯氮300 kg/hm2时产量最高，达到57135 kg/hm2。膜下滴灌处理的水分利用效率显著高于垄膜沟灌处理，其中施300 kg/hm2纯氮的水分利用效率最高。膜下滴灌模式的氮肥利用效率均显著高于垄膜沟灌模式。垄膜沟灌模式矿质态氮向下运移的深度和数量明显要大于膜下滴灌模式。收获后，整个200 cm土层矿质态氮含量均表现为垄膜沟灌高于膜下滴灌模式。

关键词: 山西省, 山西省

Abstract: In order to reduce excessive irrigation and fertilization in cabbage cultivation, field experiment was conducted to study water and nitrogen utilization and leaching in different water- saving irrigation modes, irrigation and fertilization amount. The result showed that the highest yield of cabbage was 57135 kg/hm2, obtained in mulched drip irrigation and application of nitrogen 300 kg/hm2. The water utilization efficiency in mulched drip irrigation was significantly higher than that in the treatment of ridge cultivation with mulched irrigation. And water utilization efficiency was the highest when the application of nitrogen was 300 kg/hm2. The nitrogen utilization efficiency in mulched drip irrigation was higher than that in the treatment of ridge cultivation with mulched irrigation. The amount and depth of nitrogen leaching in ridge cultivation with mulched irrigation were higher than that in the treatment of mulched drip irrigation. After the harvest, the content of mineral nitrogen in the 200 cm soil layer ridge with the treatment of cultivation with mulched irrigation was higher compared with mulched drip irrigation.