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甘肃省瓜州县位于河西走廊西端,地处北纬39°52′~41°53′东经94°45′~97°00′之间,境内海拔1 100~1 370 m,年日照总时数3 260小时,年降水量45.7 mm,年有效积温3 582.9℃,年平均无霜期142天。日照时间长,光照充足,降水量少,空气相对湿度低,有利于加工型番茄的生长;海拔高,昼夜温差大,有利于干物质的积累,出产的番茄番茄红素含
Gansu Province, located in the west of Hexi Corridor, is located between latitude 39 ° 52 ’~ 41 ° 53’ and longitude 94 ° 45 ’~ 97 ° 00’ with an altitude of 1,100-1,370 m and an annual total number of sunshine of 3 260 hours, the annual precipitation is 45.7 mm, the annual effective accumulated temperature is 3 582.9 ℃, and the annual average frost-free period is 142 days. Sunshine time is long, light enough, less precipitation, air relative humidity is low, is conducive to processing tomato growth; high altitude, large temperature difference between day and night, is conducive to the accumulation of dry matter, the production of tomato lycopene