[1]王磊,李雅文,樊廷录,等.适宜机械收获株行距对黄土旱塬春玉米产量及水分利用效率的影响[J].水土保持研究,2017,24(05):363-370.
　WANG Lei,LI Yawen,FAN Tinglu,et al.Effect of Row Spacing on Grain Yield and Water Use Efficiency of Mechanical Harvest Spring Maize in Dryland of the Loess Plateau[J].Research of Soil and Water Conservation,2017,24(05):363-370.
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适宜机械收获株行距对黄土旱塬春玉米产量及水分利用效率的影响

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 24 期数: 2017年05期 页码: 363-370 栏目: 出版日期: 2017-10-28
Title:
Effect of Row Spacing on Grain Yield and Water Use Efficiency of Mechanical Harvest Spring Maize in Dryland of the Loess Plateau
作者:
王磊1,2, 李雅文3, 樊廷录1,2, 张建军1, 赵刚1, 党翼1, 李尚中1,2
1. 甘肃省农业科学院 旱地农业研究所, 兰州 730070;
2. 甘肃省旱作区水资源高效利用重点实验室, 兰州 730070;
3. 中国农学会, 北京 100125
Author(s):
WANG Lei1,2, LI Yawen3, FAN Tinglu1,2, ZHANG Jianjun1, ZHAO Gang1, DANG Yi1, LI Shangzhong1,2
1. Dryland Agricultural Institute, Gansu Academy of Agricultural Sciences, Lanzhou 730070, China;
2. Key Laboratory of Efficient Water Utilization in Dryland Farming, Lanzhou 730070, China;
3. Chinese Association of Agricultural Science Societies, Beijing 100125, China
关键词:
春玉米; SPAD值; 株行距; 水分利用效率; 叶面积指数
Keywords:
spring maize; SPAD value; row spacing; water use efficiency; leaf area index
分类号:
S513;S152
摘要:
通过黄土旱塬适宜机械化收获的不同株行距种植模式，研究不同株行距对春玉米产量和水分利用效率的影响，为该春玉米生产力提升提供理论依据。以紧凑型高产先玉335为供试品种，设置适宜机械化收获的55 cm和75 cm两种行距，通过株距调整设置6.0万株/hm2，7.5万株/hm2，9.0万株/hm2，10.5万株/hm2共4种栽培密度，于2014年和2015年连续2年定位试验，研究株行距对春玉米生长发育及水分利用效率的影响。结果表明：与55 cm行距相比，75 cm行距在干旱条件下能够有效延缓叶片衰老，成熟期依然具有较高的SPAD值、叶面积和叶面积指数，持绿性良好，为光合产物提高给予了支撑。不同株行距种植模式WUE表现不同，吐丝期WUEF基本随密度增加而增大，2种行距下2014年和2015年均是9.0万株/hm2，10.5万株/hm2密度处理WUEF较高；收获期2014年55 cm行距9.0万株/hm2，10.5万株/hm2密度处理WUEH较高，75 cm行距7.5万株/hm2，10.5万株/hm2密度处理WUEH较高，2015年2种行距下均为6.0万株/hm2，10.5万株/hm2密度处理WUEH较高。产量水分利用效率WUEY，55 cm行距变化无规律，75 cm行距随密度增加而增大。55 cm行距和75 cm行距均可以作为黄土旱塬区春玉米机械化收获种植行距，综合土壤水分变化、叶面积指数、SPAD值、收获指数、产量及水分利用效率等，75 cm行距7.5万株/hm2种植密度可以作为紧凑型春玉米试验区域内最佳株行距设置。
Abstract:
The influence of different plant row spaces on spring maize yield and water use efficiency was investigated under the suitable for mechanical harvesting of different row spacing cropping patterns through the Loess Plateau Dryland in order to provide theoretical basis for the productivity of spring maize. XY335 with compact and high yield was selected as the test variety, suitable for mechanized harvesting 55 cm and 75 cm two plant row spacing were set up. By planting distance adjusting setting 6.0×104 plant/hm2, 7.5×104 plant/hm2, 9.0×104 plant/hm2, and 10.5×104 plant/hm2 four planting density, in a row positioning experiment in 2014 and 2015, the influence of the plant row spacing on spring maize growth and water use efficiency were examined. Results showed that compared with 55 cm row spacing, 75 cm row spacing in dry conditions can effectively delay leaf senescence, SPAD value, leaf area and leaf area index are still high in mature period, the green leaf gave support for the increase of photosynthetic product. Different plant row spacing cultivation modes have different WUE, spinning WUEF increases with increase of density, WUEF were high in two types of plant row spacing under the densities of 9.0×104 plant/hm2 and 10.5×104 plant/hm2 in 2014 and 2015; WUEH were high in 55 cm row spacing under densities of 9.0×104 plant/hm2 and 10.5×104 plant/hm2 in 2014, WUEH were high in 75 cm row spacing under the densites of 7.5×104 plant/hm2 and 10.5×104 plant/hm2, WUEH were high in two kinds of plant row spacing under densities of 6.0×104 plant/hm2 and 10.5×104 plant/hm2 in 2015. Production water use efficiency irregularly changed in 55 cm row spacing, and increased with the increase of density in 75 cm row spacing. 55 cm and 75 cm row spacing can be used as the row spacing of spring maize under mechanical harvest in Dryland of the Loess Plateau, 75 cm row spacing with the planting density of 7.5×104 plant/hm2 can be used as a best compact set of planting pattern of spring maize in the test area in terms of soil moisture change, leaf area index, SPAD value, harvest index and yield and water use efficiency.

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备注/Memo

收稿日期:2016-08-21;改回日期:2016-09-18。
基金项目:“十二五”国家科技支撑计划（2012BAD09B03，2012BAD20B04-4，2015BAD22B02-02）；国家公益性行业（农业）专项（201303104，201503124）；国家自然科学基金（31660364，41561067）；国家现代玉米产业技术体系（CARS-02-66）；农业部创新团队；甘肃省重大专项（1502NKDA003）
作者简介:王磊(1982-),男,甘肃酒泉人,助理研究员,主要从事旱地作物抗逆防灾减灾及水分高效利用研究。E-mail:qyzlwl@163.com

更新日期/Last Update: 1900-01-01