The winter and spring tomato is the main vegetable cultivation mode in Yongnian District of Handan City, which is distributed in towns and villages such as Guangfu, Xiaolongma, Zhangxibao, Dongyangzhuang and Xihezhuang. At present, the tomato planting period is in the winter and spring. The vegetable farmers should pay attention to the green prevention and control of pests and diseases in this period, and lay a good foundation for high yield.

1. Fertilization on the whole land, the soil for the treatment of the soil should be cleaned in advance, and the vegetable residue and weeds in the shed should be cleaned up in advance, and 1000 g of 50% sclerotium (chlorobromoisocyanuric acid) soluble powder per acre should be applied to the surface for soil disinfection; Then apply 50 kg of potassium sulphate compound fertilizer (15-15-15) and 150 kg of avermectin organic fertilizer per acre. The greenhouse planted for many years should also apply 80 kg of probiotic mineral fertilizer to supplement the trace elements in the soil. The heavier sheds of root-knot nematode should be applied with 10% thiazophos (Shi Liqing) 1.5 to 2 kg/mu, and then rotary tillage. It is strictly forbidden to use organic fertilizer that has not been fermented and fermented to avoid rooting and rooting.

Second, ridge mulching cultivation, roots control pests and diseases Rotary tillage after turf, ridge distance 50 ~ 60 cm, ridge covered with black mulch, can improve ground temperature, reduce humidity, control weeds. Before planting, the roots of the seedlings are rooted, and the stem base rot, root rot, withered, and whitefly are prevented. 25% azoxystrobin (cyanine) 20 ml + 20% clothianidin (protective net) 40 ml, water 30 ~ 40 kg, soaked 1000 seedlings, soak the roots of the seedlings in the liquid for 5 to 10 seconds. When planting, the plant spacing is 40 cm, the row spacing is 50-60 cm, and about 3,000 plants are planted per acre.

Third, after the slow seedlings, timely root irrigation to prevent pests and diseases 20 days after planting, 25% azoxystrobin 100 ml + 70 imidacloprid 400 g + 5% avermectin companion (Gen Lishu) 1000 ml per acre, 200 kg of water The nozzle is sprayed at the base of the tomato stem, and each plant is sprayed with 50-100 ml of liquid medicine.

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