(1) Fertilization in the selected land The sandy loam with deep soil and loose soil is selected, plowed and pulverized, and cultivated after flattening. Potatoes require large amounts of fertilizer in the early and middle stages of growth. In order to ensure normal growth and development, basic fertilizer must be reapplied. Generally, Mushi farmyard fertilizer is 2500-3000 kg, phosphate fertilizer is 50 kg, and potassium fertilizer is 15 kg (or 100-200 kg of plant ash). After mixing, nesting or furrowing is performed during transplanting.
(b) sowing
1. Select good varieties: It is advisable to use high-yield, high-quality, disease-resistant, and suitable for local planting varieties, especially virus-free potatoes.
2, timely sowing: planting in the spring, generally about a month before the night cream, the outside temperature is stable above 5 °C to sow. For the purpose of planting commodity sweet potatoes, the principle of not being affected by night cream is to strive for timely sowing in the morning and the morning market. The specific sowing time should be determined according to the local microclimate conditions.
3. Seed Potato Processing: In order to prevent seed potato infection, it is best to soak it in formalin at 0.3-0.5% for 20-30 minutes before sowing, and seal it with a plastic bag or airtight container for about 6 hours, or with 0.5. The copper sulfate solution was soaked for 2 hours for disinfection. When seeding, in order to prevent delay of seedling emergence due to seed potato dormancy, it can be soaked with 2~3ppm gibberellin solution for 5~10 minutes, or soaked with 0.5% lime water for 1~2 hours to break dormancy.
4. Seeding Density and Depth: The potato is mostly planted with two sets of two-zone planting with corn, generally 3000-3200 plants per mu is preferred, spacing is from 1 to 1.2 feet, and the spacing is from 7 to 8 inches. The best selection of 20 to 25 grams of small sweet potato sowing, if the seed potato is too large should be cut into pieces, the size of the cut in 20 to 25 grams, and do the incision disinfection, to maintain the sowing amount of 60 to 80 kg. When it is pure, the planting density of mu is maintained at 3600 to 4200, and the seeding rate is about 100 kg. The sowing depth should be 10-15 cm, and the suitable sowing depth can prevent frostbite or sunburned potato, increase the level of tuber, and improve the yield and quality.
(III) Field Management
1, cultivating soil: In the removal of weeds in the field, can increase the soil layer, increase the soil temperature, increase the soil range of tuber growth, increased underground rhizomes, has an important role in increasing production. Generally, one cultivator should be used for each cultivator in the middle and late April and from May to early June. Cultivating the soil in the early stage of potato growth can increase the soil temperature and promote the growth of germination. In the middle and late stage, the cultivating soil can enhance the permeability of the soil, which is conducive to tuber enlargement.
2, a reasonable top dressing: potato growth faster, in addition to the application of base fertilizer, but also pay attention to top dressing and promote robust growth. Generally top dressing 2 times, combined with cultivator soil. The first time the main nitrogen fertilizer, Mushi 10 kg of urea can also be used 25 mu of human excrement, each play 100 grams of urea pouring. The second time is mainly phosphorus and potash fertilizers, and the application of phosphate fertilizers is 20-25 kilograms, and potassium fertilizer is 5-10 kilograms (or 100 kilograms of plant ash).
3. Flowering and thinning: Potatoes have strong branching. If they are planted densely or have too much nitrogen fertilizer, excessive growth and excessive density will affect the development of underground parts. Branches should be promptly removed to remove diseased branches and weak. Branches enhance ventilation and light transmission, reducing disease. During flower bud formation, buds are removed timely to avoid nutrient consumption, promote nutrient supply of tubers, and increase production.
4. Pest control: Diseases and insect pests that cause serious damage to potatoes include late blight, virus disease, tuber moth and aphids. We must adopt a policy of prevention, and actively implement integrated prevention and control, such as selection of disease-resistant varieties and rational use of medicines for prevention and treatment. About 20 days after transplanting, 15 to 20 kg of urea per acre is applied to dredging water; in the bud period, 10 to 15 kg of urea is applied per mu, potassium chloride is 5 to 10 kg, and a hole is drilled with a transplanter. In the early flowering stage and full flowering stage, 0.5 to 1 kg of urea, 0.15 to 0.2 kg of potassium dihydrogen phosphate, and 0.15 to 0.2 kg of borax are used for foliar spraying of 45 to 60 kg of water per mu.
Pest control measures: Before the seedling stage (before opening), it is important to control locusts, cabbage caterpillars, leafminers and downy mildew. In the budding stage, we should focus on the prevention and control of downy mildew. aphid. When using drugs, high-efficiency, low-toxicity, low-residue pesticides should be used.
(d) about 30 days after the final flower is harvested, when the two-thirds of the whole plant is yellow-green, the pods at the base of the main inflorescence are dark, and the seed coat is dark brown or yellow, suitable for the harvest period, ie "Eight maturity, ten incomes" should be harvested in time.
(b) sowing
1. Select good varieties: It is advisable to use high-yield, high-quality, disease-resistant, and suitable for local planting varieties, especially virus-free potatoes.
2, timely sowing: planting in the spring, generally about a month before the night cream, the outside temperature is stable above 5 °C to sow. For the purpose of planting commodity sweet potatoes, the principle of not being affected by night cream is to strive for timely sowing in the morning and the morning market. The specific sowing time should be determined according to the local microclimate conditions.
3. Seed Potato Processing: In order to prevent seed potato infection, it is best to soak it in formalin at 0.3-0.5% for 20-30 minutes before sowing, and seal it with a plastic bag or airtight container for about 6 hours, or with 0.5. The copper sulfate solution was soaked for 2 hours for disinfection. When seeding, in order to prevent delay of seedling emergence due to seed potato dormancy, it can be soaked with 2~3ppm gibberellin solution for 5~10 minutes, or soaked with 0.5% lime water for 1~2 hours to break dormancy.
4. Seeding Density and Depth: The potato is mostly planted with two sets of two-zone planting with corn, generally 3000-3200 plants per mu is preferred, spacing is from 1 to 1.2 feet, and the spacing is from 7 to 8 inches. The best selection of 20 to 25 grams of small sweet potato sowing, if the seed potato is too large should be cut into pieces, the size of the cut in 20 to 25 grams, and do the incision disinfection, to maintain the sowing amount of 60 to 80 kg. When it is pure, the planting density of mu is maintained at 3600 to 4200, and the seeding rate is about 100 kg. The sowing depth should be 10-15 cm, and the suitable sowing depth can prevent frostbite or sunburned potato, increase the level of tuber, and improve the yield and quality.
(III) Field Management
1, cultivating soil: In the removal of weeds in the field, can increase the soil layer, increase the soil temperature, increase the soil range of tuber growth, increased underground rhizomes, has an important role in increasing production. Generally, one cultivator should be used for each cultivator in the middle and late April and from May to early June. Cultivating the soil in the early stage of potato growth can increase the soil temperature and promote the growth of germination. In the middle and late stage, the cultivating soil can enhance the permeability of the soil, which is conducive to tuber enlargement.
2, a reasonable top dressing: potato growth faster, in addition to the application of base fertilizer, but also pay attention to top dressing and promote robust growth. Generally top dressing 2 times, combined with cultivator soil. The first time the main nitrogen fertilizer, Mushi 10 kg of urea can also be used 25 mu of human excrement, each play 100 grams of urea pouring. The second time is mainly phosphorus and potash fertilizers, and the application of phosphate fertilizers is 20-25 kilograms, and potassium fertilizer is 5-10 kilograms (or 100 kilograms of plant ash).
3. Flowering and thinning: Potatoes have strong branching. If they are planted densely or have too much nitrogen fertilizer, excessive growth and excessive density will affect the development of underground parts. Branches should be promptly removed to remove diseased branches and weak. Branches enhance ventilation and light transmission, reducing disease. During flower bud formation, buds are removed timely to avoid nutrient consumption, promote nutrient supply of tubers, and increase production.
4. Pest control: Diseases and insect pests that cause serious damage to potatoes include late blight, virus disease, tuber moth and aphids. We must adopt a policy of prevention, and actively implement integrated prevention and control, such as selection of disease-resistant varieties and rational use of medicines for prevention and treatment. About 20 days after transplanting, 15 to 20 kg of urea per acre is applied to dredging water; in the bud period, 10 to 15 kg of urea is applied per mu, potassium chloride is 5 to 10 kg, and a hole is drilled with a transplanter. In the early flowering stage and full flowering stage, 0.5 to 1 kg of urea, 0.15 to 0.2 kg of potassium dihydrogen phosphate, and 0.15 to 0.2 kg of borax are used for foliar spraying of 45 to 60 kg of water per mu.
Pest control measures: Before the seedling stage (before opening), it is important to control locusts, cabbage caterpillars, leafminers and downy mildew. In the budding stage, we should focus on the prevention and control of downy mildew. aphid. When using drugs, high-efficiency, low-toxicity, low-residue pesticides should be used.
(d) about 30 days after the final flower is harvested, when the two-thirds of the whole plant is yellow-green, the pods at the base of the main inflorescence are dark, and the seed coat is dark brown or yellow, suitable for the harvest period, ie "Eight maturity, ten incomes" should be harvested in time.
Eyelash Extensions are a popular new product that lengthens and thickens your own natural lashes. They are single strands of synthetic eyelashes that are curved to replicate a natural lash. They are applied to each individual eyelash with a specially designed bonding agent for a natural, beautiful and luscious look. Eyelash Extensions are perfect for that special occasion or for day-to-day wear.They are virtually weightless and will not damage your natural lash so you can choos to wear them.
Eye Gel Patch,Lint Free Under Gel Patch,Free Eye Gel Patch,Eye Gel Blink Patch
Hebei Houde Hanfang Medical Devices Co., LTD. , https://www.hodafhealth.com