华北农学报 ›› 2018, Vol. 33 ›› Issue (4): 217-225. doi: 10.7668/hbnxb.2018.04.031

所属专题: 甜椒辣椒

• 耕作栽培·生理生化 • 上一篇    下一篇

膜下滴灌调亏辣椒产量构成要素及水分生产函数研究

王世杰1, 张恒嘉1, 巴玉春2, 王玉才1, 黄彩霞1, 薛道信1, 李福强1   

  1. 1. 甘肃农业大学 水利水电工程学院, 甘肃 兰州 730070;
    2. 民乐县洪水河管理处, 甘肃 民乐 734500
  • 收稿日期:2018-04-17 出版日期:2018-08-28
  • 通讯作者: 张恒嘉(1974-),男,甘肃天水人,教授,博士,博士生导师,主要从事农业水土资源高效利用研究。
  • 作者简介:王世杰(1989-),男,甘肃临夏人,硕士,主要从事作物节水理论及技术研究。
  • 基金资助:
    国家自然科学基金项目(51669001);甘肃省高等学校基本科研业务费项目(2012)

The Study of Water Regulated Deficit on Yield Component and Water Production Function of Pepper with Mulched Drip Irrigation

WANG Shijie1, ZHANG Hengjia1, BA Yuchun2, WANG Yucai1, HUANG Caixia1, XUE Daoxin1, LI Fuqiang1   

  1. 1. College of Water Conservancy and Hydropower Engineering, Gansu Agricultural University, Lanzhou 730070, China;
    2. Gansu Minle County Hongshuihe Administration, Minle 734500, China
  • Received:2018-04-17 Published:2018-08-28

摘要: 为了研究不同生育期水分亏缺对膜下滴灌辣椒生长、产量和水分利用效率的影响,在辣椒苗期和开花坐果期对辣椒均分别进行轻度(65%~75% Field capacity,FC)和中度(55%~65% FC)水分调亏,在盛果期和后果期进行轻度水分调亏,以全生育期充分供水处理(75%~85% FC)为对照。同时构建辣椒Jensen模型水分生产函数并求解。研究结果表明,对照处理辣椒青果总产量最大,为36 203.90 kg/hm2,苗期轻度和中度水分调亏以及后果期轻度水分调亏对辣椒青果总产量无显著影响(P>0.05),其余水分调亏处理辣椒总产量比对照显著减少10.45%~13.32%。盛果期轻度水分调亏和后果期轻度水分调亏使水分调亏时段的辣椒青果含水率分别比对照显著降低5.75,5.83个百分点(P<0.05)。各水分处理辣椒灌溉水利用效率(IWUE)和水分利用效率(WUE)相差不大,苗期中度水分调亏以及后果期轻度水分调亏处理的辣椒WUE分别比CK显著增加11.63%和9.41%。由求解得的Jensen辣椒水分生产函数可知,辣椒开花坐果期水分敏感指数最大,为0.517。因此,开花坐果期是辣椒的需水临界期,此生育期缺水对辣椒产量影响较大,为保证辣椒高产,应充分供水(75%~85% FC)。

关键词: 辣椒, 膜下滴灌, 水分调亏, 产量构成, 水分生产函数

Abstract: In order to study the effects of water deficit in different growth periods on growth, yield and water use efficiency of pepper with mulched drip irrigation, mild water deficit (65%-75% Field capacity, FC)and moderate water deficit (55%-65% FC)were composed during seedling period and blossom and fruit period, respectively, mild water deficit was composed during full fruit period and later fruit period, respectively, and full irrigation (75%-85% FC)during the whole pepper growth period as the control (CK). Meanwhile, water production function of pepper was modeled and solved by Jensen model. The results showed that the maximum pepper fresh fruit yield was found in the fully irrigated pepper (CK)with fruit yield of 36 203.90 kg/ha. The mild and moderate water deficit during seedling period and mild water deficit during later fruit period had no significant influence (P> 0.05)on total fresh fruit yield of pepper compared with CK, but the other water deficit treatments had significantly smaller total fresh fruit yield by 10.45% to 13.32% than CK. The mild water deficit at the full fruit period and mild water deficit at later fruit period could significantly (P<0.05)decreased pepper fresh fruit moisture content by 5.75, 5.83 percentage points during the stage with water deficit compared to CK, respectively. Pepper irrigation water use efficiency (IWUE)and WUE were similar in each water treatment, the WUE of the water treatments with moderate water deficit during seedling period and mild water deficit during later fruit period were significantly greater than CK by 11.63% and 9.41%, respectively. The water sensitive index at blossom and fruit period was the maximum of 0.517 during the different pepper growth period in Jensen water production function. Therefore, the blossom and fruit period was the critical period of water requirement of pepper, the water deficit in this growth period would lead to serious reduction of pepper yield. In order to get a higher yield, full irrigation (soil moisture was controlled at 75% to 85% of field capacity)should be conducted at this growth period.

Key words: Pepper, Mulched drip irrigation, Water regulated deficit, Yield formation, Water production function

中图分类号: 

引用本文

王世杰, 张恒嘉, 巴玉春, 王玉才, 黄彩霞, 薛道信, 李福强. 膜下滴灌调亏辣椒产量构成要素及水分生产函数研究[J]. 华北农学报, 2018, 33(4): 217-225. doi: 10.7668/hbnxb.2018.04.031.

WANG Shijie, ZHANG Hengjia, BA Yuchun, WANG Yucai, HUANG Caixia, XUE Daoxin, LI Fuqiang. The Study of Water Regulated Deficit on Yield Component and Water Production Function of Pepper with Mulched Drip Irrigation[J]. Acta Agriculturae Boreali-Sinica, 2018, 33(4): 217-225. doi: 10.7668/hbnxb.2018.04.031.

使用本文

0
    /   /   推荐 /   导出引用

链接本文: http://www.hbnxb.net/CN/10.7668/hbnxb.2018.04.031

               http://www.hbnxb.net/CN/Y2018/V33/I4/217