What are the technical aspects of field management for the early planting of solar greenhouses, large and mid-truck springs by silk melons
Temperature management
It is strictly regulated. The first is to keep the shed closed, to increase the temperature, which generally reaches 35 degrees and is followed by proper venting, in order to keep the temperature warm and humid, and to promote slow seedlings. If the temperature is low at the time of planting, small arch sheds will be added at night, which will be opened during the day and will be removed in due course when the temperature is right. When seedlings are planted, the temperature is reduced and managed at 20-30 degrees during the day and 13-15 degrees at night. As the external temperature increases, there will be a gradual increase in venting to keep the shed warm, which will be available day and night when the minimum external temperature is more than 13 degrees. During the summer, the shampoo can be removed for summer growth, and in the autumn, the shampoo can be covered and produced after autumn at minimum external temperatures below l3 degrees。
Water management
The regular planting water must be filled with water, and if less so, it can be poured into the ditch once more. When five to seven days of planting began to grow, marking the end of the slow seedlings, it was chosen to pour a slow seedling in the morning, which would then be ploughed. When a female plant emerges and blooms, it ends up incubating the seedling, pouring water once and then entering normal water management. When the temperature is low, the discharge is reduced and the water is distributed between 5 and 7 days, and when the external temperature increases, it enters the melon season and water is poured every 2 to 3 days. The amount of water can be increased each time. In the case of late autumn production, the frequency and quantity of water poured down at lower external temperatures。
Getting fat
Based on the intake of base fertilizers and the growth of the plant, there is a general lack of fatting between the planting and the planting of the chicken. If the base is not fat enough, it can be properly followed when the chicken is 50-60 cm in length. When a female sits on a fruit, the melon grows to 10-15 cm long, and fattening begins, and the principle for subsequent fertilisation into the melon season is to be applied once in a single water with nitrogen, phosphorus and potassium. When external temperatures rise, the water is washed with the wind 2-3 times. Sustained and adequate fertilizer contributes to increased filament production and longer harvest periods。
In combination with disease- and insect-proof growth, filamentary melons are fed 0. 3-0. 5 per cent of potassium phosphate per spray for foliage; or 0. 3 per cent of beverages or high mesh, or sugar: urea: a mixture of sugar and urea with a ratio of 1:5:200 in water, which can be effectively applied to folic fertilization and protection to slow the growth of plant ageing。
Barks, chickens and plant adjustments
When the chicken is 50 to 60 centimetres long, the near-ground section shall have a “discretion” of the chicken, i. E., a semi-circle of 5 to 6 centimetres deep in the direction of the chicken at the growth point of the plant to the back of the three to four real leaves, which shall be used as “discretion strips” for the production. The plate is followed by a pole on each side by a “one” type fence, which must be mounted at noon or afternoon to prevent the break of the penis and the branch. The chicken is bound by the word “ter” and part of the chicken is removed according to the characteristics of the species themselves, and only two or three chickens with strong branches are planted, so that the main chickens are condensed and the rest of the side branches, rolls, and the male sequences are removed in a timely manner。
Artificial pollination
The silk melon is a pest-brokering flower, which is artificially pollinated because of the small number of insects involved in early spring planting. The method of pollinating is to remove the male flower that blooms on that day, remove the crown of the flower, or reverse the crown of the flower, show the medicine of the flower, and gently paint the pollen on the head of the female. The pollination time is 8-10 a. M. Per day。
How can the solar greenhouses grow in the autumn and winter to fertilize and make fertilizers
Land was tanned 7 to 10 days before planting and 3000 kg of manure per hectare (or 1,500 kg of rotting chicken dung) and 25 per cent of the combined fertilisation of 3d 25 kg, calcium perphosphate 15 kg and potassium chloride 5 kg. The tillage was followed by a 60-centimetre-wide guava, a 15-20-centimetre-deep ditch in the centre, which was then applied to 1000 kg of rotting chicken dung, 10 kg of urea or 30 kg of ammonium carbon, and then to a 15-20 cm-high melon。
How do you choose varieties and plant the solar greenhouses in the autumn and winter
In choosing the varieties, the solar greenhouses grow in the autumn and winter using the following principles: pre-maturity, abundance, sustainability, resilience, selection of species such as gold white melons, short silk melons with green skins on the sea, cucumbers with white belly melons and melons in quantico。
Solar greenhouses can also be broadcast live in august-september in the fall and winter, and in the absence of seedlings, sheet film and sunnets should be covered in the greenhouse in order to prevent rain from cooling. The seedlings were planted in september-october, with 30,000-33,000 plants per hectare。
