酿酒葡萄膜下滴灌土壤水分分布规律的研究

目的]研究膜下滴灌条件下不同灌溉定额对酿酒葡萄土壤水分的动态变化规律的影响.方法]通过田间试验,以不覆膜为对照,研究覆膜条件下酿酒葡萄不同生育期土壤水分动态变化规律.结果]覆膜能有效保证土壤水分不易散失.土壤水分大多集中在20～60 cm的深度.7～8月是葡萄生长发育旺盛和葡萄果实膨大、着色、成熟的关键时期.结论]膜下滴灌是保证葡萄增产节水的重要措施.保持20 ～60 cm土层适宜的土壤含水量是葡萄生产的重要因素.7～8月应适时加大灌溉量并缩短灌水周期,满足葡萄生长的需要.

Study on Soil Moisture Distribution of Wine Grape Film with Drip Irrigation

Objective ] Effects of different irrigation quota on soil moisture dynamic variation of wine grape of drip irrigation under plastic film were studied. Method ] Through field test, with no mulch control, variation of wine grape in different growth period on soil moisture dynamic research under plastic mulch was studied. Result] Film could effectively ensure the soil moisture wasn＇t easy to dissipate. Soil moisture was mostly concentrated in 20 -60 em depth. From July to August was grape fruit coloring mature critical period of growth and development of grape. Conclusion] Drip irrigation under film was the important measure which guaranteed grape water saving. 20 -60 cm soil layer of suit- able soil moisture was an important factor in grape production. Irrigation quantity should be timely increased.in July-August, and the irrigation cycle should be shortened to meet the needs of grapes.