I. Temperature management
A higher temperature should be maintained within one week of seedling planting, facilitating new roots. The appropriate temperature for this period is around 30 degrees during the day and over 15 degrees during the night. A week later, when the new leaf of the seedlings began to grow significantly, the temperature was reduced to prevent the plant from growing too much, and it grew, and the temperature remained at around 25 degrees during the day and at 12 degrees during the night. Following the recovery of the temperature in the spring of the coming year, ventilation should be enhanced to prevent excessive temperatures in the greenhouse。
Ii. Greenhouse ventilation
Air in the greenhouses increases the disease when it is wet, and ventilation management in the greenhouses is enhanced. Ventilation begins during the day when the temperature in the greenhouse rises to more than 25 degrees and at no less than 15 degrees outside the greenhouse at night. In the middle of the day and in the days following the watering, air moisture in the greenhouses is also easily high, and ventilation should be prolonged, with short-term ventilation and drainage during this period when temperatures are low. Early spring is the main occurrence of the greenhouse eggplant disease and the period when there are more stringent requirements for ventilation management, which should be strengthened to prevent long periods of high air humidity in the greenhouse。
Iii. Fertilizer management
(1) the temperature in the autumn, winter and early spring greenhouses is low, the eggplants grow slowly and require little water and water only from small gutters. When greenhouses are ventilated all day, the soil is fast and dry, and water should be poured together with gutters。
(2) in winter, water must be watered in the middle of a warm morning, in the dark and in the middle of a clear afternoon, otherwise not only the temperature rises slowly, the roots are vulnerable, but the air moisture in the greenhouses is chronically high and causes disease。
(3) increased ventilation in the greenhouse within days of watering. Waters must be watered in an appropriate amount, and water must not flood the branches of the sap。
When most of the field's plant is grown to the walnuts, it starts to fatten up. The eggplant is made of nuts, which are high harvests, high production and hard-working fertilization. We need to use organic and chemical fertilizer interchangeably. Fertilizers are best combined with potassium sulphate or potassium phosphate when pursuing urea. Organic fertilizer is appropriate for fermented chicken dung, which is more effective。
Iv. The whole package
(1) the whole branch is to wipe out all the branches under the first partition, retaining only the results of the two branches divided at the first partition, and then all the branches that grow on each branch。
Air moisture in the greenhouses is high and prone to a variety of diseases, so eggplant stains are scheduled to take place in the middle of the morning in the middle of the day, in the afternoon and in the middle of the day, and the scarring of the back branch is difficult to heal and susceptible to disease. In addition, do not remove the side branches from the stem of the outcome, leaving around a centimetre long to keep the scarlet away from the main cause and avoid the primary disease。
(2) the main function of the twigs is to ensure that the selected branches are evenly distributed in the greenhouses and maintain good light in the fields, and that the branches grow upwards so as to avoid the consequences of the twigs。
(3) old leaves that hit the old eggplants are prone to disease and must be removed at an early stage as well as severe leaves. The blades shall be cut off with a pair of scissors from the base of the leaf handle, which shall be approximately one centimetre long, and shall not be cut off from the branch so as not to cause direct injury to the branch when the main tuber and the wounds left behind become sick。
(4) the marriage bond fixed on the crib shall be removed as early as possible after the seedling of the eggplant has been established, so as to avoid long-term attachments to the crib, which hinders the normal growth of the section。
V. Hormonal applications
(1) control of the growth of the plant and prevention of the growth of the plant, which is currently mainly used for the use of boosters and dwarfs. When the plant begins to grow, the extent of the spraying depends on the growth of the plant。
(2) plumbing eggplants are not able to sit normally in fruit when the average temperature is below 15 degrees. As a result, eggplant cultivation in winter greenhouses requires the treatment of flowers with sit-in hormones to increase the seating rate. The main choice for eggplant broach is 2,4-d hormones with a plaster concentration of 20-30 mg/l and 20-30 mg/l anti-depressants for sitting fruit. Hebei peasant, ponminder, joreza
