【摘要】 以日光温室番茄幼苗为试验材料,研究不同灌溉温度幼苗生长的影响,探讨促进番茄幼苗生长的最佳灌溉水温。结果表明:25～45℃的水温灌溉范围内均在不同程度上促进番茄幼苗生长,提高生长势。用35℃温水灌溉处理效果最佳,与对照相比,茎高、茎粗、叶面积、根系数、叶绿素含量、叶片含氮量、单位鲜重的干物质量、根冠比和壮苗指数分别提高了23.09%、44.74%、35.15%、96.64%、11.36%、8.04%、60.00%、92.31%和189.32%,效果明显。更多还原

【Abstract】 Some tomato seedlings in greenhouse are selected as experimental material to study the effect of different irrigation water temperature on the seedlings growth in greenhouse to explore the best irrigation water temperature for tomato seedling growth.The results show that the irrigation water temperature in the range of 25～45 ℃ can promote the growth of tomato seedling at different extent;the treatment with 35 ℃ irrigation water has the best effect;compared with the contrast treatment,its stem height,stem diameter,leaf area,root factor,chlorophyll content,leaf nitrogen content,dry matter quality of unit fresh weight,root-shoot ratio,and seedling index are increased by 23.09%,44.74%,35.15%,96.64%,11.36%,8.04%,60.00%,92.31%,and 189.32%,respectively.更多还原