Cultivation
Premature or medium-premature varieties are selected and can be seeded from late november to early december, and are over 90 days old. The age of seedlings can be reduced to 70-80 days, or the planting period can be postponed until mid-december and late, if the seedling is used in electro-heating beds or planted in winter-heating sheds. The age-appropriate indicator of seedling morphology is the beginning of the bud。
2. Plantation
The appropriate temperature indicator for eggplant planting is that the temperature of 10 cm within the shed is stable between 12 and 15°c. The arch shed is covered with a single layer of plastic sheeting, with a planting period of late march, and with multiple layers of protected cover or single-spaned spring-type large huts with no back-sliding roofs, with an early planting period until late february and early march。
The upper membrane shacks should be kept as early as possible prior to planting in order to raise the temperature in the sheds. The huts with front-crop crops are to be established early, and the old sheds are to be fumigated with potables。
When the shacks are strewn, they are to be ground-to-grounded, combined with the application of base fertilizer and the use of pick-up cultivation. The whole ground, application of base fertilizers and risers, with the same specifications as winter planting。
3. Post-plant management
(1) low temperature after management of the period is determined is a major constraint on eggplant growth. It is expected to increase the temperature within 10-15 days of planting. The temperature of the shed can reach 30°c in the daytime and the temperature of the shed can be used to increase the temperature. At this point in time, there should be a short break in the air, but there should be no break in the air, much less a break in the air, as well as an increase in the pine earth, which would raise the temperature and promote the root causes. One-side and multiple-covered huts need to be sensitive to the need for transparent cover to be kept warm and fully lighted。
(2) in order to increase the production of pre-cuter fruit after the management of the pre-results, care shall be taken to preserve the pre-release fruit and to promote the growth of the leaves and the construction of the productive skeleton. At this stage, emphasis will be placed on the regulation of the temperature of the sheds and the improvement of ventilation management, which will maintain the temperature of the sheds at 28-30°c for more than five hours during the day, start ventilation at 32°c in the morning and close the vents when the temperature falls below 25°c in the afternoon. Care should also be taken to regulate the relationship between plant growth and results, and to remove all the branches below the branches, such as double-drying branches, and to eliminate the excess sprouts in a timely manner. And then, when the eggplant sits on the fruit, it is gravitational, about 10 centimetres high, promoting roots and preventing inversion. Pre-term management of the eggplant should be controlled, with less water being poured and more pine soil, especially during the flowering of the eggplants, where soil moisture is not too high or easy to fall. When the tomatoes grow into walnuts, they catch fat and water. 20 kg of urea per acre or 1,000 kg of urine. In the event of water recharge, and in order to prevent a decline in the temperature in the preceding period, morning and morning water can be pumped in the clear. For pups, 2,4-d flowers at 20 mg/l (20 ppm) can be used。
(iii) after the management of the poignant period has entered its peak, the shed has reached a high temperature, so that ventilation should be increased to prevent high temperature hazards. They can roll up all the film under their shoulders. Close the skylight when the temperature is not less than 17°c and ventilated day and night. In order to enhance the light cooperation of the eggplant and to have a good colour, the film could be removed from the top of the shed after june. The period of fiery fruit demands big fat water and fruit development. Water can be poured every 5-6 days and fatter every 2 days. Fertilizers are used interchangeably with organic fertilizers. In the ferocious season, the base leaves and yellow leaves can be removed, ventilation can be improved, nutrients concentrated on the fruits and fruit growth promoted。
4. Disease prevention and treatment
In the middle and late stages of its growth, large sheds of winter and spring eggplants have been characterized by infestation and pests due to higher temperatures and high temperatures and humidity. The main diseases are amphibious disease, lice, etc., and the main pests are aphids, khat, white lice, etc. The prevention and control of diseases begins with the management of the temperature and humidity in the shed, with particular attention to temperature control, and their occurrence is not directly related to the wetness of the shed. Controlling the humidity in the sheds, mainly through the provision of ventilation, especially after watering, is particularly important。
