In the late summer and early fall, the weather was hot and the lighting brought a lot of difficulties to the nursery. However, the vegetable farmers paid attention to strictly following the technical operation procedures, so that nursery techniques were taught and management depended on science. The following measures were taken to ensure the growth of the pepper seedlings. Strong and strong.
The summer and autumn pepper breeding seedlings do a few tasks such as seed treatment, natural room temperature germination, and seedling sowing, and at the same time mainly solve the problems of high temperature and drought, heavy storms, prevention of seedlings, prevention of diseases and insect pests, and so on.
Seed treatment: After selecting good varieties, the seeds are first dried for 4 hours, then disinfected by trisodium phosphate solution, and then soaked in fresh water for about 8 hours. Slightly dry after removing and prepare to germinate.
Germination at room temperature: Now the room temperature is generally around 30°C, which is the appropriate temperature for germination. Soak the soaked seeds in cotton cloth and moisten with a plastic film. The seeds are rinsed with clear water every half-day, and then germinated again. The buds can be sprouted in about 60 to 70 hours. When the buds are about 3 mm long (at this time, the seed is whitened), sowing is best. If the seeds cannot be sown in time, the seeds should be stored under the condition of about 8°C, and the sowing conditions should be created as soon as possible.
Preparation of plug tray: Use special nursery medium. Each bag can hold 72 trays with 12 trays. Each tray can have 72 plants. The vegetable farmers can calculate the number of nursery trays and nursery media needed according to their own needs. The nursery medium is mixed with an appropriate amount of phosphorus-potassium compound fertilizer, special biological micro-fertilizer and other trace elements, etc. After mixing with water, the plug tray is leveled (straightened with a straight wooden board).
This is the beginning of nursery work. If you want to raise good seedlings, it is still important to prevent high temperatures and droughts, heavy rain, water, seedlings, disease and pests. This is the top priority of the entire work.
Preventing high temperatures: After sowing, the plug tray is irrigated and sprayed with Prok then covered with plastic film. At this point should pay attention to shade cooling, prevent steaming seeds and affect the emergence. At this time, the temperature should be kept below 30°C during the day and below 18°C ​​during the night. When the emergence time is about 80%, the plastic film can be peeled off. With the growth of the seedlings, the time for covering the shade net can be shortened, which is more conducive to the growth of seedlings.
Prevent drought: after sowing seedlings, always pay attention to the humidity of the seedbed, do not get too wet or too dry, many vegetable farmers afraid of seedlings and control watering and cause excessive drip in the plug, this time due to dry roots of water loss and injury, affect the absorption of the future The ability to form weak seedlings is susceptible to illness. Therefore, we must properly water the watering time should be the best on a sunny morning.
Prevention of seedlings and leggy: No matter what the crop plants are long because of weak light conditions, insufficient photosynthesis, high temperature, high humidity and so on. The main reasons for the summer pepper seedlings are due to the high night temperature, strong respiration, excessive nutrient consumption, and then nitrogen fertilizer and sufficient water to cause the seedlings to grow. In addition, the seedlings shaded each other too much and affected the photosynthesis. Therefore, the prevention of seedlings should be paid attention to prevent the extreme night temperature is too high, the humidity inside the plug is too large; then in the fertilization and fertilization when less nitrogen fertilizer; the third is when the seedlings grow to a certain size, the inter-pull spacing to increase, increase Ventilation and light transmission enhance photosynthesis to avoid seedlings.
Prevention of heavy rain hazards: The seedbeds are placed in sheds and are generally covered by a membrane-two-network covering method (plastic film plus shade nets and insect nets). When there is heavy rain, the shed film can be pulled down and buried well to prevent the rain from seedlings. Rushing and rain-borne bacteria.
Prevention of pests and diseases: At this stage, since the external environment is more conducive to the occurrence of pests, pest control should also be strengthened. For example, in the nursery shed, set up a tight insect net; use the tendencies of pests to set yellow plates to induce fleas, induce whiteflies, use blue plates to trap and kill hummocks, etc.; The diseases that should be strengthened at this time are the damping-off at the seedling stage, blight and viral diseases during the middle growth period. In addition to the seed disinfection, seed bed disinfection is also required. After the sowing, the seedlings can be sprayed with Xiangnong 4 or Miao bacteria. Mixed into harvest No.1, can effectively inhibit the soil seedling disease, can promote the development of seedling root system, Miao Qi Miao.
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