排灌机械工程学报
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排灌机械工程学报  2019, Vol. 37 Issue (8): 718-723    DOI: 10.3969/j.issn.1674-8530.17.0231
农业水土工程 最新目录 | 下期目录 | 过刊浏览 | 高级检索 Previous Articles  |  Next Articles  
覆膜集雨补灌对冬小麦产量和水分利用效率的影响
王凯瑜,李援农*,方恒,杜利,徐路全
西北农林科技大学旱区农业水土工程教育部重点实验室, 陕西 杨凌712100
Effects of plastic-film mulching and supplementary irrigation on yield and water use efficiency of winter wheat
WANG Kaiyu, LI Yuannong*, FANG Heng, DU Li, XU Luquan
Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Nothwest A&F University, Yangling, Shaanxi 712100, China
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摘要 为确定半湿润易旱区垄沟集雨种植模式下冬小麦拔节期的适宜补灌量及探究不同地膜对土壤蓄水保墒和节水增产效果的差异,设置垄上覆普通地膜(P)和生物降解膜(J)2种处理,并结合雨养(I0)、拔节期补灌20 mm(I1),40 mm(I2),60 mm(I3),对比分析不同地膜不同补灌量下0~200 cm土层土壤贮水量、冬小麦产量和水分利用效率的变化.结果表明:覆膜可显著提高0~100 cm土壤贮水量,处理J在苗期保墒性与P相当,之后显著低于处理P;覆膜使苗期后100~200 cm土壤贮水量显著低于CK,但P,J间差异不具有统计学意义.补灌能显著增加0~200 cm土壤贮水量,处理I3的土壤贮水量最高,I2次之.覆膜处理的产量和水分利用效率均显著大于CK,P略大于J,但差异不具有统计学意义.2种不同膜覆盖下处理I2的平均籽粒产量比处理I3低1.50%,但处理I2的平均水分利用效率与灌溉水利用效率较I3分别提高2.4%和37.5%.因此,垄覆生物降解膜,沟内种植,结合冬小麦拔节期补灌40 mm(I2)是缓解残膜污染、增产节水的最优处理.
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王凯瑜
李援农*
方恒
杜利
徐路全
关键词冬小麦   生物降解膜   补充灌溉   产量   水分利用效率     
Abstract: Field experiment was conducted to determine the appropriate supplemental irrigation amount of winter wheat at the jointing stage with the ridge and furrow rain harvesting cultivation and explore the difference of the film mulching on soil water conservation and water-saving effects in semihumid and drought prone areas. The ridges covered with plastic film (P)and biodegradable film(J), combined with rain-fed (I0), supplementary irrigation 20 mm (I1), 40 mm (I2), 60 mm (I3) at the jointing stage were set up to analyze and compare soil water storage, winter wheat yield and water use efficiency (WUE) changes under different supplemental irrigation amounts and mulching patterns at 0-200 cm soil depths. The results showed that the film mulching could significantly improve the soil water storage of 0-100 cm, the effect of conserving soil moisture of J was similar to that of P at the seedling stage and lower than that of P after the seedling stage. Soil water storage of the film mulching was significantly lower than that of CK at 100-200 cm after the seedling period, but there was no significant difference between P and J. The irrigation measures can significantly increase the soil water storage of 0-200 cm, and the soil water storage in I3 is the highest, that in I2 is the second. The winter wheat yield and WUE of the film mulching were obviously higher those of CK, while the winter wheat yield and WUE of P were slightly higher than those of J, but there was no significant difference. The average grain yield of I2 was 1.50% lower than that of I3 under two different film coverings. But the average WUE and irrigation WUE of I2 were the highest. Compared with I3, the average WUE and irrigation WUE of I2 were improved by 2.4% and 37.5%, respectively. Therefore, the ridge with biodegradable film, furrow planting, combined with I2 is the best treatment of alleviating residual film pollution, water saving and high yield.
Key wordswinter wheat   biodegradable film   supplementary irrigation   yield   water use efficiency   
收稿日期: 2017-10-29;
基金资助:水利部公益性行业(农业)科研专项经费资助项目(201503105,201503125)第一作者简介:王凯瑜(1993—),女,陕西宜君人,硕士研究生(18392505281@163com),主要从事节水灌溉理论与技术研究
引用本文:   
王凯瑜,李援农*,方恒等. 覆膜集雨补灌对冬小麦产量和水分利用效率的影响[J]. 排灌机械工程学报, 2019, 37(8): 718-723.
WANG Kai-Yu,LI Yuan-Nong-*,FANG Heng et al. Effects of plastic-film mulching and supplementary irrigation on yield and water use efficiency of winter wheat[J]. Journal of Drainage and Irrigation Machinery Engin, 2019, 37(8): 718-723.
 
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