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中国农学通报

中国农学通报 ›› 2019, Vol. 35 ›› Issue (16): 6-14.doi: 10.11924/j.issn.1000-6850.casb18100108

所属专题： 玉米

• 农学 农业基础科学 • 上一篇    下一篇

北疆寒旱区不同水分处理对膜下滴灌青贮玉米植株生长与产量的影响

加孜拉, 白云岗, 曹彪   

  1. 新疆水利水电科学研究院
  • 收稿日期:2018-10-29 修回日期:2018-12-21 接受日期:2018-12-24 出版日期:2019-06-04 发布日期:2019-06-04
  • 通讯作者: 加孜拉
  • 基金资助:
    水利部技术示范项目“新疆牧区饲草高效节水技术集成与示范”(SF-201733)。

Effects of Different Water Treatments on Growth and Yield of Drip-irrigated Silage Corn in Cold and Arid Regions of Northern Xinjiang

  • Received:2018-10-29 Revised:2018-12-21 Accepted:2018-12-24 Online:2019-06-04 Published:2019-06-04

PDF (PC)

243

摘要： 为了确定北疆寒旱区滴灌青贮玉米适宜灌溉制度，以阿勒泰地区青河县为试验地，选择新玉23号为试验品种，通过对青贮玉米株高、茎粗、叶面积LAI、产量和土壤水分测定，分析了不同灌水定额和不同灌水频率对滴灌青贮玉米生长和产量的影响。结果表明：滴灌条件青贮玉米叶面积指数在生育期内的变化趋势呈正态曲线变化，随着青贮玉米生育期的叶面积指数先升后降的趋势；滴灌青贮玉米灌溉量与产量的关系呈二次抛物线关系。青贮玉米的整个生育期耗水强度呈现先增大，再减小的规律，青贮玉米总需水量为612 mm，抽雄期耗水强度最大，达到8.73 mm/d。推荐北疆寒旱区滴灌青贮玉米适宜灌溉制度为：灌溉定额为5625 m3/hm2，灌水频率为10天。

关键词: 甘薯, 甘薯, 淀粉型品种, 系谱, 性状分析

Abstract: To determine the suitable irrigation system for drip-irrigated silage corn in the cold and arid regions of northern Xinjiang, Qinghe County in Altay was used as the experimental site,‘Xinyu 23’was selected as the experimental variety, and the plant height, stem diameter, leaf area index (LAI), yield and soil moisture of silage corn were determined. The effects of different irrigation quotas and frequencies on the growth and yield of silage corn were analyzed. The results showed that LAI of silage corn in the drip irrigation condition presented a normal curve during the growth period, and the leaf area index of the growth period of silage corn increased first and then decreased. The relationship between the irrigation amount of silage corn and the yield of silage was a quadratic parabolic one. The water consumption intensity of silage corn increased first and then decreased. The total water requirement of silage corn was 612 mm, and the water consumption intensity during the tasseling period was the highest, reaching 8.73 mm/d. It is recommended that the suitable irrigation system for drip irrigation silage corn in the cold and arid regions of northern Xinjiang is: irrigation quota of 5625 m3/hm2 and irrigation frequency of 10 days.