土壤含水量对日光温室秋冬番茄生长及产量的影响

Effects of soil moisture content on growth and yield of tomato in autumn and winter in solar greenhouse

以高纬高寒地区装配式双膜内被节能日光温室为试验温室,采用膜下滴灌方式设置三种土壤含水量处理(50%~65%、65%~80%、80%~95%),探究秋冬季节装配式日光温室中土壤含水量对番茄生长、品质及产量的影响。结果表明,温室土壤相对含水量增加提高番茄植株株高和产量,茎粗、叶绿素含量、根系活力和果实中可溶性蛋白、可溶性糖、可滴定酸和番茄红素含量显著降低。采用灰色关联度法综合评价番茄品质和产量,再结合土壤含水量对日光温室土壤温度的影响,认为低水分处理(50%~65%)在装配式日光温室秋冬季番茄生产中应用较为适合。

The assembled double-film energy-saving solar greenhouses in high latitude and cold regions were used as the experimental greenhouse,and three soil moisture content treatments were set up by drip irrigation under the mulches(50%-65%,65%-80%,80%-95%)to explore the effects of soil moisture content on tomato growth,quality,and yield in autumn and winter of the assembled solar greenhouse.The results showed that the increase of soil relative moisture content in the greenhouse would increase the plant height and yield of tomato,but chlorophyll content,root activity,soluble protein,soluble sugar,titratable acid,and lycopene contents in fruits decreased significantly.A comprehensive evaluation of tomato quality and yield by using the grey relation analysis method,combined with the effects of soil moisture content on soil temperature in the solar greenhouse,concluded that the low moisture treatment(50%-65%)was more suitable for application in tomato production in autumn and winter in the assembled solar greenhouse.