Facilities should pay attention to the problem of melon seedlings

Nursery is the key link in melon plant cultivation. The quality of nursery is directly related to future growth.
Prepare nutrient soil: Use nutritious soil with Datian soil, fully decomposed organic fertilizer, a small amount of chemical fertilizers and fungicides. Daejeon-tzu has never planted vegetables or cotton, and it has not been used especially for herbicides. Daejeon's soil accounted for 60% to 70%, and then sieved. Organic fertilizer accounted for 30% to 40%, must be fully cooked before use, avoid using raw manure. Also sieving before preparation. In order to increase the fertility of nutritious soil, ternary compound fertilizer should be added in an amount of 2 kg per cubic meter of nutrient soil, and carbendazim or other insecticides and fungicides should be added to every cubic meter of nutrient soil for soil disinfection and killing. insect.
Mounting: Fill the nutrient bowl with nutrient soil. Be careful not to fill it up. Keep it 2 to 3 centimeters away from the nutrient bowl so that you can store some moisture when you water it. After mounting, the nutrition bowl is neatly placed in the seedbed.
Seed treatment: Pour the seeds into 55°C water, keep stirring, keep this temperature for 10 minutes, soak in seeds at 33°C, soak seeds for 6 hours to start germination and wrap them with hand towels. The buds were picked out and budding buds continued to sprout, most of which could be sown the next day. Pay attention to weather changes during germination and require 3 to 5 days of good weather. Do not sow seeds on continuous cloudy days: To ensure sufficient water during seedlings and reduce the amount of watering during seedling growth, pour enough water before planting. Pay attention to the ground temperature and must be above 15°C before planting.
For the prevention of damping-off diseases such as damping-off and blight, seedlings are sprayed with 3000 mg of hymexazide wettable powder on the surface of the loquat before sowing, spraying approximately 1 kg per 10 square meters, and sowing the seeds immediately after spraying.
Put one seed in each nutrient bowl with the seed buds facing down or flat, and then spread evenly 2 cm thick moist soil on the seeds. A plastic arch shed was built on the seedbed and the mulching film was placed on the seedbed so that the temperature of the seedling soil after sowing reached 25°C to 30°C. The daytime temperature does not exceed 35°C during the seedling period without ventilation, the soil temperature is maintained at 25°C-32°C, and is maintained at 17°C-22°C during the night. The minimum is not lower than 12°C in the early hours of the morning. The available hotline increases the temperature when the temperature is not reached. Higher temperatures can promote early emergence of seedlings.
Before the first true leaf is unfolded, it should be ventilated so that the temperature does not exceed 28°C to prevent the formation of tall seedlings. One week before planting, seedlings should be given more light to cultivate strong seedlings and promote flower bud differentiation. From the first 5 to 7 days before planting, the small shed of the seedbed shall be withdrawn, and the ventilation volume shall be increased to prolong the ventilation time and carry out the low-temperature hardening. And pay attention to not watering at this time, in order to ease seedlings after planting.
When planting seedlings should have 4 to 5 true leaves, flat leaves, light green, more lateral roots, plant height of about 15 cm, the whole plant without pests and diseases.