The high-efficient multi-seedling model of loofah, Chinese cabbage and lettuce formed in Libao Town of Hai'an County has high land utilization rate, high yield, and high efficiency. In 2009, it was listed as one of the 22 efficient infrastructure horticultural demonstration projects in the province and has now been formed. 3000 acres of planting scale. This model produces 5000-6000 kg of loofah per acre, with an output value of 6,000 yuan per mu. It produces 4,000-5,000 kg of Chinese cabbage per mu and has a production value of 2,000 yuan per mu. It produces 5,000 kg of lettuce per mu, and the per mu yield is 7,000 yuan. The cornices were planted in late January to plant seedlings, planted in early March, and harvested in early August; Chinese cabbage was sown in mid-August and harvested in late October and early November; lettuce was planted in late September, planted in mid-November, and was planted in mid-February. The harvest ends late. The timing of this model is relatively tight. There are two key points to be grasped: First, timely planting of seedlings and planting. Premature sowing will result in poor rotten seedlings, risk of damping-off during seedling stage, and increased risk of freezing injury to seedlings. Virus disease and soft rot disease of Chinese cabbage will occur. Lettuce will grow high seedlings due to seedling age;茬 Crops affect growth. The second is to clear the mouth in time. Luffa selection of early-maturing, high-quality, disease-resistant, high-yield five-leaf fragrant, Jiangya No. 1 early loofah and other varieties. Use greenhouses, small sheds, nutrition, electric heating and nursery. Soak in warm soup before sowing and sow 2 seeds per pot. Seedling age 40 days, loofah seedlings 3 leaves 1 heart choose cold tail warmer colonization. Use greenhouses and small sheds to add plastic film or double greenhouse and plastic film covering cultivation. Planting spacing 1.2 to 1.5 meters, spacing 40 to 50 cm, planting 2 per hole, planting 2400 per acre. After planting, cover a small shed film. Before moving the tree, do not ventilate. Keep the shed temperature above 25°C. When the temperature of the living rear shelf is above 25°C, proper ventilation is required. The application of base fertilizer is the key to seizing high yields. It is 2,000 kg of chicken manure per mu, and 40-50 kg of 45% compound fertilizer. When picking root melons, 15 kg of urea and 20 kg of potassium sulfate are applied per acre. During the Fruit period, 20 kg of urea are applied per acre, and in the mid-late stage, the urea per acre is 10-15 kg. Chinese cabbage was selected for disease-resistant and high-yield medium-maturing varieties such as 87114 and modified Qingza No.3. The amount of seed per acre is 80 to 100 grams, and sowing of 3 to 4 seeds per hole. 2 leaf stage, 4 leaf stage seedlings once, 6 leaf stage Dingmiao, row spacing 60 cm, plant spacing 50 cm, per acre planted 2000 to 2200 strains. The basal manure will be used to compost 2,000 kg of chicken manure, 50 kg of compound fertilizer (10-8-7), and 50 kg of ammonium bicarbonate (or 15-20 kg of urea). At the beginning of the package, 20 kg of urea per mu can be applied. It is also possible to raise the seedlings or the tree-fertilizers at the seedling stage or in the rosette stage. The Chinese cabbage is watered 2 or 3 times during seedling stage. The lotus seedlings are controlled with water and seedlings are adequately supplied. The water is supplied abundantly during the bulbous period. When drought occurs, the water is poured once at the beginning of the filling period, and the irrigation is performed once every 7 to 10 days. 2 to 3 times. Lettuce use high quality, disease-resistant, cold-resistant, high-yield holly and other varieties. The seedbed land should be intensively cultivated, and the seedbed should be irrigated one day before sowing, sowing about 50 grams per mu of field. About 35 days of seedling age, seedlings have 5 to 6 leaves colonized. Planting spacing, plant spacing are 30 cm, planted 7000 ~ 7500 per mu. In order to promote living trees, the temperature of the shed is controlled at about 25°C after planting, and the shed temperature after living trees cannot be high. To increase ventilation, the shed temperature is controlled at 15 to 20°C. Each kilogram of base chicken cooked manure 1,000 kilograms, compound fertilizer (10-8-7) 50 kilograms, ammonium bicarbonate 40 to 50 kilograms or urea 15 kilograms. After the live tree is applied, 1,000 kg of human feces are used per acre. Fertility applies 15 kg of urea and 10 kg of potassium sulfate per acre. When lettuce is deficient in boron, it is easy to cause stem cracking. Spray 0.3% borax solution 1 or 2 times. When twitching, water is irrigated as the soil is dry and wet.
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