摘要
常规塑料大棚两侧通风窗较窄,导致棚内通风不良,病害严重,作物生长受到严重影响。本试验在8.00 m宽普通钢架大棚的基础上,通过加大两侧通风口高度、增开两端通风窗、将大门与通风窗覆盖20目防虫网,对钢架大棚结构进行了改进,同时研究了改良型通风防虫大棚在高温季节对番茄生长的影响。试验结果表明:2012年5月晴天气候条件下改良型通风防虫大棚内温度比普通大棚降低了7.5℃,相对湿度提高了12.5个百分点。与普通大棚相比,改良型通风防虫大棚内番茄生长旺盛,病虫害大幅减少,品质好,每株果实数增加了22.2%,单果重增加了16.7%,产量提高了43.6%。
In regular plastic greenhouse,the narrow ventilating windows on both sides causes poor ventilation and serious diseases,resulting in declined yield and quality of crops.The greenhouse in this study was improved on the basis of steel-arch plastic shed with the width of 8.00 m.The height of vent on both sides was increased,the ventilating windows on both ends were enlarged and 20-mesh insect-preventing net was covered on the entrance gate and ventilating window.The temperature in the improved ventilation greenhouse with insect-preventing net was 7.5 ℃ lower than the standard plastic greenhouse,in May 2012,under sunny conditions,and the relative humidity was 12.5 percent point higher.The tomato in the improved ventilation greenhouse with insect-preventing net was well-grown.With reduced diseases and pests,the quality of tomato was improved,the fruit number per plant was increased by 22.2%,the weight of single fruit was improved by 16.7%,and the yield was increased by 43.6%.
出处
《江苏农业学报》
CSCD
北大核心
2012年第6期1409-1412,共4页
Jiangsu Journal of Agricultural Sciences
基金
江苏省农业科技自主创新基金项目[CX(11)3021]
关键词
大棚
番茄
温度
湿度
greenhouse
tomato
temperature
humidity
