Tomato planting in greenhouses
1. Select excellent disease-resistant varieties The spring greenhouse variety is Monte Carlo, which has been continuously planted for 2 years and has achieved high yield and high efficiency. Introduced by South Korea, Monte Carlo is an infinite growth type with compact plant type and sparse leaves. It is suitable for the protection of weak light cultivation. The fruit shape is high round, the high yield in the early stage, the fruit is even, and the single fruit weighs 250-350 grams, which can be used in the morning market. 2, cultivate strong seedlings Into the sowing period, the commercial seedling substrate is used to carry out seedless seedlings. The advantages of the seedless seedlings are: the root system is developed, the seedlings are strong, the seedlings are strong, and the occurrence of diseases is reduced; the labor saving, time saving, easy handling, reducing labor intensity, improving labor efficiency; slowing seedlings after planting, can increase production by 10% the above. 3, timely planting, reasonable close planting Reasonable close planting is one of the measures to capture high yield. Xue Yulong has a planting density of 3,310 plants per acre, a plant spacing of 31 cm and a row spacing of 65 cm. More than 300 plants are planted in the greenhouse. 4, heavy application of base fertilizer, reasonable topdressing Before the planting, the base fertilizer was applied, 4000 kg of decomposed organic fertilizer and 50 kg of 51% compound fertilizer were applied. After the application of the trace element fertilizer, the cultivation was carried out twice and the depth was 30 cm. During the growth period, the principle of top dressing is a spike of fruit. When the first spike of the tomato is the size of the walnut, the topdressing and fruit-promoting effect is carried out, and the per-mu application of Pepsi-Tradio is 15 kg. The second ear of fruit to the fourth ear of fruit, increase the potassium nitrate and fertilize, apply 10 kg per acre plus Pepsi to bio-fertilize 10 kg. In combination with disease prevention, potassium dihydrogen phosphate and strong boron zinc calcium are sprayed every 7-10 days. 5. Using new technologies to control pests and diseases The new technology is used to control pests and diseases. The whole growth period is managed according to the principle of “prevention first, comprehensive preventionâ€, and broad-spectrum fungicides are sprayed once every 7-10 days (mainly Kelu, Fuxing, Jinlei, etc.). Using roots with slow release pesticide application technology to control whitefly and aphids. It can be used at the time of planting, and can prevent the pests of the whole growing season of vegetables. It is not necessary to fight drugs and insects, which reduces the cost of manual drugs and reduces the labor intensity. Electric Fan Heaters,Portable Electric Heaters,Small Electric Heater,Electric Portable Heaters Ningbo Shuangtuo International Trade Co., Ltd. , https://www.nbst-sports.com