Thick-skinned muskmelon seeds are generally more expensive, and the off-season planting of the greenhouses must be focused on seedlings in a small area to facilitate management and cost savings. Winter and spring planting is the main facility cultivation mode in North China. Generally, it will be planted in mid-December and planted in mid-January of the following year. After mid-March, it will be harvested gradually and will be pulled in mid-June. The main points of its seedling technology are:
Choose a suitable area in the shed and make it 1.2 meters wide and a little shorter than the span of the booth (generally about 6 meters).
Nursery with seedlings. Preparation of nutritious soil can be achieved by using 5 loams of uncultivated melon crops, 4 fully decomposed people, chicken or pig manure, and 1 part of sandy soil to mix and sieve, and then add 0.5 kg of urea per cubic meter of mixed waste. NPK fertilizer compound 1.5 kg, in addition to the appropriate amount of sterilization and insecticide can be.
Put plastic soil or plastic pots filled with nutrient soil into the pots, and then use the melon seeds that have been disinfected and germinated to sow 1-2 seeds per pot and sow at the center of the plutonium soil. Cover with 1 cm thick finely divided nutritious soil. In order to maintain the sensation of ramming soil, a layer of film was added to the rake, and a small shed was used to cover the rake. During the day, the sunshine in the grass and grasslands was warmed up and the lids were kept warm in the evening. After the cotyledons of melons are unearthed, the film on the cocoons is removed in time and the insecticides are sprayed to prevent the seedlings from tripping. With the growth of melon seedlings, it is necessary to timely add water and ventilation to the seedlings. 30 to 35 days after sowing, the true leaves of the seedlings can be transplanted with pods when they grow to two leaves.
After the harvest of the previous crop, 3000 mu of organic manure was fermented per acre, 100 kg of special compound fertilizer was used for melon, and the depth was 20 to 30 cm. North-south toward a row of ridges 70 cm wide by 1m spacing, with 35 cm (single vine pruning) or 45 cm (dual vine pruning) spacing in the center of the ridge before planting After the planting, the soil surface and the ground level are planted in the hole, and the water is then watered. The soil is sealed after the second day of pressure. In this way, about 1800 single-vine-planted seedlings were planted per acre, and about 1,400 double-vines were pruned.
Pay attention to prevention of damping-off during seedling stage. The longer the cultivation period is, the easier it is to become sick. When the temperature is low and the humidity is high, the onset is serious. Can cause rotten seeds, rotten buds and seedlings tripping, is the main disease of melon seedling stage. First, disease-free new soil should be selected to raise seedlings; Secondly, attention should be paid to ventilation during the nursery to disperse wet; Third, the incidence of the seedling stage can be sprayed with 64% anti-tussive WP 500 times or 600 times the toxicity of MnZn WP wettablet 600 times. According to the incidence, spraying once every 7-10 days.
fold mask machine
Dongguan Huitong Automatic Machinery Technology Co., Ltd , https://www.medicalmaskmachines.com