Selection of cultivars cultivars for summer tomato cultivation should be cultivars with high temperature resistance, moisture resistance, antiviral disease, late blight and other diseases, strong adaptability to environment, high fruit set rate, high yield and good commercial performance.  Suitable varieties are Shanghai Cooperation 906, 908, Zhongza 9, Yuza 8 and so on.  

After the wheat harvest, the stubble arable land should be eliminated.  Before arable land, every 667 square meters of decomposed farm fertilizer 4,000 ~5000 kg, diammonium phosphate 20 kg, potassium sulfate 30 kg, zinc fertilizer, borax fertilizer, iron fertilizer 2 kg.  

Colonisation cover Colonisation in early June.  One row of planting 2 rows, 65 cm wide row, 45 cm narrow row, plant spacing 30 cm.  Water the seedbed well the day before colonization.  After colonization, wheat straw 4~5 cm thick must be covered on the ridge surface, which can effectively reduce the ground temperature, protect the wall, weed control, and reduce the occurrence of pests and diseases.  

Water and fertilizer management after colonization, continuous watering twice permeable.  After slow seedling, water once every 7 to 10 days.  Small water often watering, can not flood irrigation.  Watering must be done in the morning or evening, not at noon.  Topdressing is divided into two times. The first topdressing is when the tomatoes grow to the size of walnuts. The second topdressing is in mid to late August, and 35 kg of three-element compound fertilizer is applied.  Do not use ammonium bicarbonate or urea topdressing.  

The temperature of summer tomato growing season is high and the temperature is high, the occurrence of diseases and pests is more, so prevention should be given priority to.  Before flowering to control aphids and virus disease mainly, after fruit set to prevent cotton bollworm and late blight mainly.  At the seedling stage and before flowering, control should be done every 7 to 10 days. Diseases and pests such as aphids, late blight, gray mold can be prevented from the seedling stage by using kuacicling or crack.  Cotton bollworm, vegetable insect and other pests can poison scorpion 2000 times liquid fog.  The American spot miner can be controlled with 1000 times liquid of 40% green vegetable treasure oil. 

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