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越夏番茄由于整个生长期处于高温多雨季节,病虫害和雨涝极易发生,造成低产甚至绝收。我们自1995年开始利用早春茬的旧塑料棚遮光、挡雨进行栽培试验。据测定、棚内可降低光照2.5万勒克司、温度降低3～5度,并可挡雨水,减轻病虫为害。从而为番茄创造了比较适宜的环境条件,保证番茄安全越夏。据试验平均亩产4521公斤、亩产值4128元,1995～1996两年累计推广面积3000亩,增加经济效益124万元,解决了番茄秋淡季的供应。大棚直
Summer tomato As the whole growing season in high temperature and rainy season, pests and floods easily occur, resulting in low yield or even income. Since 1995, we started to use the old plastic shed in early spring to block the light and carry out cultivation experiments. According to the determination, the shed can reduce the light 25000 lux, the temperature is reduced by 3 to 5 degrees, and can block the rain, reduce pests and diseases. So as to create a more suitable tomato environmental conditions, to ensure the safety of tomato summer. According to the test, the average output per mu is 4521 kilograms, with the output value of 4,128 yuan per mu. From 1995 to 1996, the total area for promotion was 3,000 mu, and the economic benefits increased by 1,240,000 yuan, which solved the supply of tomato autumn off-season. Greenhouses straight