Greenhouse tomato, loofah, greens, lettuce efficient cultivation
After two years of practice, the wild forestry agricultural park in Rugao City has concluded that the double-layer greenhouses cover small sheds and cover mulching film to cultivate early spring tomatoes, sponge gourds, summer greens and autumn lettuces. Generally, it can produce 3,000 kilograms of tomatoes, 1500 kilograms of loofah, 850 kilograms of small vegetables, and 3,500 kilograms of lettuce per acre, with a total output value of over 13,000 yuan per mu.
Tomato selection Jinpeng Chaoguan tomato varieties, its fruit type is moderate, suitable for local consumption habits. Sowing in mid-September, seedlings are planted 20 days after sowing, covered with shading nets with small sheds and small sheds, mild water control to prevent steep growth, and seedling height control at 30 cm. The greenhouse is 40 meters long, 6 meters wide, and 2.5 meters high. In mid-November, a shed is set in a greenhouse. The inner shed is 20 centimeters lower than the shed and 40 centimeters in width. Each kilogram of base fertilizer composting organic fertilizer 4000 kilograms, potassium sulfate compound fertilizer 50 kilograms. Four combinations in the shed were planted in high ridges with a ridge height of 25 cm, a ridge width of 75 cm and a ditch width of 35 cm. In mid-December, 40 cm spacing and 30 cm planting distance were planted. After planting, water was poured into living trees to cover the mulch and take a small shed. After the planting, the shed was shed for 3 days, and then the air was released. On sunny days, the inner shed and the small shed membrane were ventilated and light-transmitting. On cloudy days, only the ventilation of the small arch shed film was removed. In early March, increase the amount of ventilation, pay attention to the timely removal of a small arch shed, scaffolding tying branches, using single stem pruning. Flowering was sprayed with 30 mg/L of anti-dropping flower and each layer of inflorescence was treated once. After sitting 4 spikes, leave 2 leaves topping. The first ear with large eggs combined with disease-prevention spray 0.5% urea and 0.3% potassium dihydrogen phosphate mixture, the first ear began to change color with 200 mg / l ethephon solution coated fruit for early harvest. The inner shed was removed in late March. 10 days after the colonization of tomato, the drug was used to control epidemic diseases and umbilical rot. To reduce the humidity, smoke was sprayed once every 5 to 7 days with a chlorothalonil smoke agent. In the middle and late May to early June, the control of aphids was noted. Harvested from mid-April to early July.
Luffa selection Jianguo No. 1 gourd varieties, using greenhouses and small arch shed heating wire plug substrate matrix nursery. In the second half of February, loofah was planted on 20 cm on both sides of the double shed, with a spacing of 1.2 meters. The vines were introduced in time so that the vine spread evenly in the shed and the side vines less than 1 meter were removed. One male flower was more than 1 meter in the lateral vines, and one leaf was picked after the flower. After the tomato harvest, the cultivator will be cultivated and a diluted manure water will be applied. The fertilizer will be applied once every 2 to 3 harvests. The main diseases are downy mildew, anthrax, epidemic, and powdery mildew. The main pests are aphids, red spiders, and melons. Harvested from mid-April to late July, together with loofah, was cut off from the base of lateral vines.
Green vegetables use heat-resistant Shanghai green vegetables. After the tomato harvest in mid-July, 2,000 kg of organic manure, 20 kg of compound fertilizer, and 75 to 100 kg of quick lime were planted per acre. During the growth period, aphids were used to control aphids. 20 to 25 days after sowing.
Lettuce selection of cold, disease-resistant species are green lettuce. In late August to early September, greenhouses were covered with shading nets. Seeds were sterilized before sowing. After germination, seeds were soaked and germinated, and 80% of the seeds were sown after sowing. Use 0.67 grams of seed per square meter. After sowing, cover the seeds with fine soil to cover the shade net. After the emergence, remove the shade net and make up the water in the evening. Seedlings are planted 15 to 20 days after sowing and planted after 35 days. One week prior to planting, 2500 kg of organic fertilizer was applied per mu, and 50 kg of compound fertilizer was 45%. The pH was adjusted to 50-75 kg of lime per acre. Site preparation is done. The width is 1.4 meters wide, and the depth is 20 centimeters in width and 30 centimeters in width. The plant spacing was 35 cm, transplanted with soil, and water was poured after planting. 10-15 days after planting weeding and weeding, increase soil permeability and regulate humidity, promote root growth. If the vegetable grows poorly, appropriate amount of organic fertilizer and urea can be applied. The main diseases are downy mildew, seedling blight, and soft rot. The main pests are aphids.
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