To make the eggplant harvested for many years in a year, it is actually to use the continuous cultivation techniques of the old eggplant to cut off the aerial part to promote the development of lateral buds and grow into new plants. A year of planting, years of growth, and continuous harvesting for many years. Its cultivation techniques are as follows:
First, soil fertigation
More than 7000 kilograms of soil-fertilizer per acre, more than 50 kilograms of phosphate fertilizer and ternary compound fertilizer, and deep into the soil.
Second, timely transplanting
In late September, all the old branches of eggplant in Daejeon will be cut off, leaving only 10-15 cm of sorghum, and then transplanted into winter greenhouses or in single-slope greenhouses (if they grow in winter greenhouses, they do not need to be moved). , pruning directly). In general, the film is covered with heat preservation and moisturizing, and the large-row row cultivation method is adopted, with a large row spacing of 80 cm, a small row spacing of 40 cm, a plant spacing of 50 cm, and 2,500 plants per acre. Quickly pour 1 small water after transplanting, and plough loose soil in time.
Third, seedling management
After the lateral shoots have germinated and gradually grow into small plantlets, the temperature in the shed is appropriately reduced, ventilation is started at 25°C during the day, and can be reduced to 15°C at night, so that the time for hardening the seedlings is maintained for 7-10 days. Eggplant seedlings have high requirements for nitrogen fertilizer, and can apply 20-30 kg of nitrogen fertilizer per acre with watering, and cultivating loose soil in time after pouring. Seedling period can be sprayed 2% of superphosphate solution 1-2 times, nitrogen, phosphorus, potassium fertilizer should be appropriate, adequate supply.
Fourth, the results of management
Results The management of watering in the early stage was mainly controlled, with less irrigation and more loose soil. Especially during the flowering period of the gate, the soil moisture could not be too high. After the fruit is set on the door, it will maintain the temperature of 28-30°C during the day for more than 5 hours. When the temperature drops below 25°C in the afternoon, it will close the vent and the temperature will be controlled at 13-18°C during the night. Before and after the fruit is set on the door, two podlike branches are kept and other axillary buds on the main stalk are promptly removed. In addition, the results of the previous use of 2.4-D dip, only pedicel or corsage, do not sprinkle the liquid on the leaves.
The results of the 7-8 days of pouring water 1 times, each time per acre topdressing 15 kg of urea and potassium nitrate or potassium sulfate 6-7 kg, combined with water flushing, post-spray 0.5% urea can be used for foliar dressing .
Pruning in time to destroy the old leaves and yellow leaves of the base. Mid-term results, select sunny morning, watering alternately. Close the greenhouse after watering, use the afternoon to raise the temperature of the greenhouse, so that the night temperature in the greenhouse is not lower than 15°C, and the daytime temperature in the greenhouse is maintained at 25-30°C. When the temperature is higher than 32°C, it is timely ventilated and dehumidified, the night temperature is controlled at 15-18°C, and the temperature difference between day and night is 10°C. At the later stage, the greenhouse vents and door and window films can be rolled up. When the night temperature is not lower than 15°C, the vents are not closed, ventilation is provided day and night, and the top film of the greenhouse can be removed after July.
Eggplants can be continuously harvested after the shelter is removed. This stage mainly strengthens the control of pests and diseases and drainage in the rainy season. Until the upper branches were cut in late September, other management methods were the same as last year, so that they could be cultivated continuously for 3-5 years.
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