| 引用本文: | 陶治,吴现兵,程伍群,等.地下膜调控润灌对土壤水分及冬小麦生长的影响[J].灌溉排水学报,0,():-. |
| Tao Zhi,Wu Xianbing,Cheng Wuqun,et al.地下膜调控润灌对土壤水分及冬小麦生长的影响[J].灌溉排水学报,0,():-. |
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| 摘要: |
| 【目的】探索地下膜调控润灌下冬小麦适宜灌溉制度【方法】通过田间小区试验，研究地下膜调控润灌下灌水定额为300m3·hm-2（W1）、450m3·hm-2（W2）、600m3·hm-2（W3），灌水模式为连续灌溉（S1）、间歇灌溉（S2）和传统畦灌（CK）条件下对冬小麦灌后土壤水分分布、生长性状、耗水规律、产量构成和水分利用效率的影响。【结果】①相较于CK，地下膜调控润灌可减少下渗量，提高株高、全生育期耗水量、籽粒产量和WUE；②地下膜调控润灌下，随着灌水定额的增加，20cm~60cm土层土壤含水率增加；S2处理较S1处理可降低灌溉水向80cm~100cm土层下渗；③冬小麦各生育阶段株高、LAI和全生育期耗水量均和灌水定额呈正相关；灌水模式对株高和LAI的影响不显著，但可显著提高全生育期耗水量；④随着灌水定额增加，S2较S1分别增产6.52%、13.11%和3.46%，籽粒产量和WUE呈现先增加后减少的趋势。【结论】相较于CK，地下膜调控润灌有节水高产的优点，综合考虑灌后土壤水分分布、作物生长性状、耗水规律、产量和WUE，W2S2是最优的灌溉制度，可以获得更高籽粒产量的同时降低水分消耗，增加WUE。 |
| 关键词: 地下膜调控润灌;土壤水分分布;生长性状;耗水规律;籽粒产量;水分利用效率 |
| DOI： |
| 分类号:S275.4 S512.1 |
| 基金项目:河北省水利科技计划项目（2022-14） |
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| Effects of Subsurface Membrane Controlled Irrigation on Soil Moisture and Winter Wheat Growth |
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Tao Zhi1, Wu Xianbing1, Cheng Wuqun1, Wei Liang2, Jia Zhijun2, Gu Zongfang3, Gao Xin3
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1.Hebei Agricultural University;2.Hebei Water Resources Research and Water Conservancy Technology Test and Extension Center;3.Baoding Irrigation Experiment Station
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| Abstract: |
| 【Objective】To explore the suitable irrigation system of winter wheat under the wet irrigation controlled by underground membrane.【Method】Through field plot experiments, The effects of irrigation quota of 300m3·hm-2 (W1), 450m3·hm-2 (W2), 600m3·hm-2 (W3) and irrigation mode of continuous irrigation (S1) and intermittent irrigation (S2) on soil water distribution, growth characteristics, water consumption, yield composition and water use efficiency of winter wheat after irrigation were studied.【Result】Compared with CK, subsurface membrane controlled irrigation could reduce infiltration amount and increase plant height, water consumption, grain yield and WUE. With the increase of irrigation quota, the soil moisture content of 20cm~60cm soil layer increased. Compared with S1 treatment, S2 treatment can reduce the infiltration of irrigation water into 80cm~100cm soil layer. Plant height, LAI and water consumption at all growth stages of winter wheat were positively correlated with irrigation water quota. Irrigation pattern had no significant effect on plant height and LAI, but could significantly increase water consumption during the whole growth period. With the increase of irrigation quota, S2 increased by 6.52%, 13.11% and 3.46% compared with S1, respectively, and grain yield and WUE showed a trend of first increasing and then decreasing.【Conclusion】Compared with CK, subsurface membrane controlled irrigation has the advantages of water saving and high yield. Considering soil water distribution, crop growth characteristics, water consumption rule, yield and WUE after irrigation, W2S2 is the best irrigation system, which can achieve higher grain yield while reducing water consumption and increasing WUE. |
| Key words: Underground membrane control irrigation;Soil water distribution; Growth traits; Water consumption law; Grain yield; Water use efficiency |
