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洗盐方式对设施土壤盐分、养分含量及蔬菜生长的影响

Effects of Salt Washing Methods on Soil Salinity and Nutrient Content and Vegetable Growth in Facility Agriculture
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摘要 为了解洗盐方式对降低土壤盐分和促进蔬菜生长的影响,在大棚栽培条件下比较研究了揭膜淋洗和灌水淋洗2种洗盐方式对设施土壤盐分分布、养分、pH及蔬菜生长和产量的影响。结果表明:无论是揭膜淋洗还是灌水淋洗均可促进设施土壤表层盐分向下部土层迁移,降低表层和亚表层土壤盐分,促进小白菜种子发芽出苗和根系生长,增加小白菜产量。2种洗盐方式对表层土壤盐分的下降量均在50%以上,小白菜出苗数提高200%以上,蔬菜产量提高65%以上。其中揭膜淋洗的洗盐效果好于灌溉洗盐。试验结果还表明,淋盐措施有助于提高土壤pH,但也导致了耕层土壤养分的下降。 To understand the effect of different salt washing methods on reducing soil salinity and promoting vegetable growth,under greenhouse cultivation conditions,the authors compared the effects of peeling film leaching and irrigation leaching on soil salinity distribution,soil nutrients,soil pH and vegetable growth and yield.The results showed that:both peeling film leaching and irrigation leaching could reduce the surface and sub-surface soil salinity by promoting the migration of salt from surface to the lower soil layer,and the decrease of surface soil salinity was more than 50%.The two salt washing methods could also increase the yield of cabbage by promoting seed germination and root growth,so the seedling emergence rate and yield of cabbage increased respectively by more than 200%and 65%.In addition,the effect of peeling film leaching was better than that of irrigation leaching.The results also showed that salt washing could increase soil pH,but reduce soil nutrients of topsoil.
作者 沈建国 粟贵俊 楼玲 何林海 胡康赢 SHEN Jianguo;SU Guijun;LOU Ling;HE Linhai;HU Kangying(Service Station of Eco-agriculture and Plant Protection of Yuhang District,Hangzhou 310023;Linhai Vegetable and Fruit Professional Cooperative of Liangzhu,Hangzhou 311118)
出处 《中国农学通报》 2023年第8期69-73,共5页 Chinese Agricultural Science Bulletin
基金 杭州市科技发展计划项目“设施蔬菜连作障碍生态防控技术的研究与示范”(2020ZDSJ0130)。
关键词 洗盐方式 大棚设施 土壤盐分 土壤养分 蔬菜生长 salt washing method greenhouse facilities soil salinity soil nutrient vegetable growth
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