Cultivation of cherry tomatoes, although the workload is relatively large, but the benefits are higher, so the author summarizes the cherry tomato planting experience of some vegetable farmers in Tianma Town, Shouguang City, Shandong Province for exchange.
First, nurture strong seedlings. Cherry tomatoes in the early spring are usually planted in greenhouses at the end of December and planted in greenhouses at the beginning of February. The seedlings are about 60 days old. Before sowing, first soak seeds with 10% trisodium phosphate solution for 20-30 minutes, remove and wash, and then soak in clean water for 4-6 hours, remove and dry slightly, and germinate for 2 days. Due to the high price of seeds, nursery seedlings often use nutrient cartridges or nutritional bags.
Second, Shi Shifei timely planting. General requirements for every 667 square meters of high-quality organic fertilizer 5-8 cubic meters, 50-100 kg of potassium sulfate, 200 kg of plant ash, 50 kg of diammonium phosphate, 500 kg of cooked cake fat. After deep-leveling, the land is ridiculed in large and small rows with a large row spacing of 90 centimeters, a small row spacing of 60 centimeters, and a ridge height of 15 centimeters. When ridging, the cooked cake fertilizer can be applied to the ridge bottom. When the seedling height is 15 cm, the plant colonizes with 5-6 true leaves. Plants were planted at a distance of 40-45 cm and planted at 2000-2200 plants per 667 m2.
Third, strengthen management
1, fertilizer and water management: pouring foot-bottom water, slightly loose soil after cutting loose soil to promote hair roots, the first spike fruit to sit before cultivating 2-3 times, for seedlings. After the first panicles were sitting, fertilizer and water were applied in a timely manner. Each time 667m2 was topdressed with 15-20 kg of ternary compound fertilizer, the interval between fertilization and watering was flexibly controlled according to the growth of the plants and weather conditions.
2. Pruning vines: When the first inflorescence is open, hang vines with plastic ropes in time. The cherry tomatoes are pruned using the double vine pruning method, ie, leaving one main vine and one robust side vine while hanging the vine, and all the other side branches or grand branches are promptly knocked out.
3, point flowers and fruits, thinning flowers and thinning fruit: tomatoes caused by falling fruit is mainly because the temperature is too high or too low, lack of light, lack of nutrients, fertilizer and water are not coordinated. The solution, except for the above reasons, is to use hormone treatment. A 2.4-D flower stalk with a concentration of 10-15 mg/kg can be used. There are three nodes in the stalks of the tomatoes, and it is best if the stalks are twigs in the second or second quarter. In addition, in order to protect the fruit and evenly, improve the commercial nature, it is necessary to spend sparse fruit in a timely manner, generally 10-15 can be left per ear fruit.
Fourth, prevention and control of pests and diseases. Like ordinary tomatoes, cherry tomatoes are prone to gray mold, early and late blight, umbilical rot, tea sorghum, whitefly, etc. The methods of prevention and treatment are the same as those of ordinary tomatoes. Here are the prevention and treatment measures for umbilical rot: Calcium sulphate fertilizer, foliar spraying 0.5% calcium chloride solution or 1% calcium superphosphate solution.
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