【摘要】 为了探讨不同灌溉方式对日光温室内主要环境因子及黄瓜生长发育的影响,对滴灌、渗灌和畦灌3种灌溉方式下的地温、气温、空气相对湿度和黄瓜的生长发育进行了研究。结果表明:灌溉方式对温室环境有较大影响,灌溉后的差异更明显。与畦灌相比,渗灌处理白天地温可提高3.73℃,滴灌处理提高2.27℃;白天气温滴灌处理提高4.35℃,渗灌处理提高2.36℃,夜间渗灌处理的气温平均比畦灌处理提高0.5℃左右;相对湿度滴灌降低5%,渗灌降低9%;根长和根长密度,渗灌和滴灌处理明显优于畦灌处理,盛瓜期0 cm~15 cm的根长以滴灌的最长,达440.17 cm,畦灌的最短,只有269.28 cm;15 cm~30 cm根长,渗灌处理最长,畦灌处理最短。黄瓜植株生长状况和产量,渗灌和滴灌处理都极显著的高于畦灌处理,提高了水分生产率。更多还原

【Abstract】 To discuss the effect of different irrigation methods on the main environment factors and the growth of cucumber in solar greenhouse,soil temperature,air temperature,relative air humidity and plant growth of cucumber from drip irrigation,sub-irrigation,and furrow irrigation were studied.Results indicated that the irrigation methods affect environment the most,especially after irrigation.Compared with furrow irrigation,drip irrigation and sub-irrigation could relatively increase soil temperature by 3.73℃ and 2.27℃,air temperature by 4.35℃ and 2.36℃ in daytime,decreased relative air humidity by 5% and 9%,and sub-irrigation could increase soil temperature 0.5℃ in average at night.Root length and root length density,sub-irrigation and drip irrigation were obviously better than furrow irrigation,in flourish fruit stages,drip irrigation’s root length was 440.17cm,which was the longest,and furrow irrigation was only 269.28cm,which was the shortest,in 0~15cm soil,and sub-irrigation’s root length was the longest one,furrow irrigation’s was the shortest one,in 15~30cm soil.The plant growth and yield under sub-irrigation and drip irrigation were much higher than those under furrow irrigation,and water use efficiency was increased significantly.更多还原