Before the planting, the soil is deep-turned and deep-soiled, and the depth of the ploughing is 20 to 30 cm. In the large row, 1 m is used as the hoe, so that the clods are finely divided and the kneading surface is leveled.
Selection of good varieties, timely sowing autumn potato growth period is short, generally about 120 days, choose high-yield, disease-resistant varieties, should be based on cooperation 88. The best season for autumn potato planting is from late August to early September. Linyi Fertilizer Network Copyright
1 to 2 days before sowing, cut into 40 to 50 grams, with 1 to 2 buds of potato chips, such as cut into diseased potatoes, the knife should be soaked in 0.5% potassium permanganate solution for a few seconds before continuing. The diced pieces are sterilized with seed ash ash seed dressing. If the whole potato is planted, no disinfection is required. Linyi Fertilizer Network Copyright
Reasonable close planting, applying enough fertilizer to plant the ditch, planting specifications: plant spacing 0.3 m × 0.3 m, about 1700 plants per mu. The amount of seeding depends on the size of the seed potato. Generally, 90 to 100 kg of potato is required per acre. Linyi Fertilizer Network Copyright
After the autumn potato is covered with straw, it is difficult to topdress the fertilizer, and the base fertilizer should be applied. Generally, 1000-1500 kg of organic fertilizer is applied per mu, 40 kg of 45% nitrogen, phosphorus and potassium compound fertilizer, 40 kg of calcium or 40 kg of compound fertilizer, and 30 kg of superphosphate. Organic fertilizer is applied to the potato sowing zone, and the fertilizer is applied between the potatoes, leaving the plant about 5 cm. After emergence, the weak seedlings can be topdressed with pig manure or 5 kg of urea. Under normal circumstances, there is no top dressing. Linyi Fertilizer Network Copyright
After the straw is planted and fertilized by the potato, the prepared straw is used, and the tip of the grass uniformly covers the entire surface of the grass 10 cm thick, and the ditch presses the soil on the straw. Linyi Fertilizer Network Copyright
The field management potato is sensitive to water, and its water demand characteristics are: less in the early stage, more expansion in the potato, and less in the latter. Therefore, if the surface soil is white after sowing, it should be watered in time to keep the soil moist to ensure the whole seedling. Linyi Fertilizer Network Copyright
Pest control The main disease of potato is late blight; the main pests are ground tigers and tuber moths, crickets and yellow ants. The prevention and control of pests and diseases should be "prevention-oriented, comprehensive prevention and control", serious disease prevention, and serious pest management. Linyi Fertilizer Network Copyright
Earth tigers, cockroaches, yellow ants, etc., when planting, use 3% phoxim particles 3 to 4 kg of soil or fine sand to spread in the seeding ditch. In the middle and late period, the main prevention and treatment of late blight is sprayed once every 7 to 10 days with 72.2% Plex 1000 times, 72% gram dew 800 times or 25% metalaxyl, and sprayed evenly for 4 to 5 times. Linyi Fertilizer Network Copyright
Harvesting When the potato stems and leaves turn yellow and the base leaves fall off, they can be harvested. Linyi Fertilizer Network Copyright
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Geo-membrane is produced by a method of three layer co-extrusion model. The raw material is processed at 200°C by fusing and coextrusion, whose basic properties are kept during the producing process.
Features:
1) Can bear chemical erosion.
2) A wider using temperature range and a longer using life.
Application:
It can be widely used in areas of garbage burying, waste disposal, tail minerals storage and underground construction projects.
Hdpe Geomembrane
High Density Polyethylene Geomembrane, Hdpe Geomembrane Smooth And Textured, Hdpe Geomembrane Polyethylene
Feicheng Lianyi Engineering Plastics Co., Ltd , https://www.lianyigeosynthetics.com