For winter melon cultivation, under the premise of cold protection measures, early sowing is better than late sowing, and it can be sowed in early and mid-January. The technical points of winter melon planting mainly include the following aspects:
The sowing period is from the small cold to the big cold period, and it shall not exceed Lichun at the latest.
For site preparation, choose fields with convenient irrigation and drainage and fertile soil. After raking and leveling, ridges are formed every 1.9 meters.
Apply enough base fertilizer to apply 1000 to 1500 kg of decomposed pig manure per mu, preferably in strips.
The seeding adopts double-row sowing, requiring plant spacing of 85-90 cm, sowing about 900 litters per acre, and sowing 3 seeds per litter. Later, the melon seedlings will grow to the two-leaf stage with 2 seedlings per litter, and the five-leaf stage with 1 seedling per litter for planting. .
After the film is covered for heat preservation and sowing, the film should be covered immediately, and the 1.85-meter-long bamboo cuttings are cut into an arc. After the film is covered, the two sides are pressed with soil.
Cultivation, weeding, fertilization and soil cultivation. When the seedlings grow to the three-leaf stage, weeds should be weeded, but herbicides should not be used to prevent the melon seedlings from being killed by the medicine. After uncovering the film, apply 500-750 kg of decomposed pig manure, 25-35 kg of peanut bran, 25 kg of compound fertilizer, 10 kg of potassium chloride, and 50 kg of calcium-magnesium-phosphate fertilizer per mu, and cultivate the soil after fertilization.
The black-skinned wax gourd grown off-season for pollination and protection melon is suitable for the 18th to 22nd nodes, that is, the third and fourth female flowers and the melons, the rest should be removed. When the melon begins to droop and bend its neck after pollination, remove the head and side buds of the melon seedling from the 15th leaf from the back of the melon (commonly known as topping).
Disease prevention and control The main diseases to be controlled are wilt, blight, blight and downy mildew.
The black-skinned wax gourd can be picked and put on the market 30 to 35 days after pollination and the shape of the melon grows to about 90%.
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Feed additive enzymes Simple classification of feed enzymes:
1.endogenous enzymes, refers to the animal body can secrete digestive enzymes, the main function is to digest the nutrients in the feed used to improve the digestibility of feed; The digestive system of young animals is not perfect, and the digestive enzymes secreted by the body are insufficient. In particular, a large amount of endogenous enzymes should be added to the feed based on plant raw materials to solve the digestive problems. Endogenous enzymes generally refer to protease, amylase, lipase and so on.
2. Exogenous enzymes refer to the enzyme preparations that animals cannot secrete autonomously and must be added. The main function is to degrade the anti-nutrient factors of plant raw materials, non-starch polysaccharides that hinder the release of nutrients and react with the contact of endogenous enzymes, such as cell walls, and non-starch polysaccharides that bring negative effects; Common are phytase, xylanase, glucanase, cellulase, mannanase, galactosidase, etc.
3.functional enzymes, mainly use its catalytic function to achieve the processes and products we need, such as glucose oxidase, a brief overview is the catalytic process with glucose to consume oxygen, produce gluconic acid and hydrogen peroxide, Reduce the PH value of the gut, and use its strong oxidation to alleviate mycotoxin poisoning and protect the health of the digestive system, improve immunity and other functions; In addition, there are catalase, lysozyme and other related products, the specific function is not this unnecessary
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