The high-yielding cultivation techniques for potato double row ridging are the integrated cultivation measures of potato which are assembled by techniques such as deep loosening, ridging, deep fertilization and double-row rational close planting. In recent years, the county has introduced this technology to grow potatoes, which has achieved higher benefits, yielding more than 15% more than conventional cultivation, and increasing the commodity rate of qualified potatoes by more than 20%. China Agricultural Net now introduces its main technical points as follows: 1. Selection of suitable varieties At present, our county mainly promotes the cultivation of early, medium and high-yield, high-quality potato varieties such as Damshu No. 10, Zhongshu No. 3, Feiwuruit and Kexin No. 4. 2. The selection of ground, trenching, and ridge potato should not be used as a continuum. Potato high-yielding cultivation techniques are suitable for rotation with crops such as beans, cereals, and rapeseed. It is advisable to choose sandy loam or tidal mud fields with fertile soil, deep soil layer, loose structure, good drainage and irrigation conditions, and strong water retention and fertility conservation. After the ploughing, the land will be leveled in a timely manner so that the soil, land, and foot can be achieved. It is required that the car be leveled and finely finished, and the ditch and cross ditch should be opened to facilitate drainage and stain prevention. When ridging, the ridge width should be 60-66 cm, the ridge height should be about 20 cm, and the ridge spacing should be 33 cm. 3. Strictly select seed potatoes before processing seed sowing and remove diseased potatoes and rotten potatoes. Seed potatoes must be complete, no pests, no frost damage, and the potato skin is smooth and fresh in color. The large seeded potatoes are cut into pieces, and 75% alcohol is used to disinfect the cutters and diseased potatoes to prevent virus (bacteria) infection. Each seed potato should have 1~2 robust buds, and use the top buds as much as possible. Each weight should be 25~50 grams. Cuts should be accompanied by sowing, with about 150 kg of mu. 4. Timely planting in high-altitude areas in our county should be sown from early January to early February. Before harvesting potatoes, we must pay attention to which low-altitude areas can advance to the end of December to early January. If the seed potatoes have germinated a lot, rather late rather than too early, to ensure that after the final frost Qimiao. 5. Master the sowing method and density of two rows of seed potatoes per ridge, spaced 33 to 36 centimeters, plant spacing 23 to 26 centimeters, sowing lines and ridge margins 15 centimeters, sowing one seed potato for each bud. When sowing seed potatoes will be placed directly on the ridge surface, shoots upwards, a little pressure, so that the seed potatoes and the soil full contact, after sowing from the trench cover the cover of good planting potatoes and flat ridge. The thickness of the cover soil is about 8 centimeters, and the overburdened soil is too shallow. The knotted potato will be exposed to green and affect the quality. Excessive soil thickness will delay emergence and affect yield. The general planting density is 5000~6000 holes/mu. 6. Applying basal fertilizer Generally, 1500 to 3,000 kilograms of organic manure, 30 to 40 kilograms of phosphate fertilizer, 200 kilograms of plant ash or 20 kilograms of potassium sulfate are applied per mus, and the basal fertilizer is applied to two rows of seed potatoes between ridges. At the time of sowing, for example, 1000 kg of human or animal urine per acre or 15 kg of nitrogen fertilizer can be used as a seed fertilizer to make the seedlings quickly and neatly and robustly. 7. Apply topdressing at the same time in the middle of cultivating and weeding, temperature management and water management (the same method used for conventional cultivation), but also in the early stage of potato tuber enlargement fertilizer, acres topdressing 10 kg of urea or three yuan compound fertilizer 15 kg. Can also use 2% urea solution or 0.2 ~ 0.3 kg of potassium dihydrogen phosphate water 50 kg foliar spray. 8. Prevention and control of pests and diseases The main disease of potato is late blight disease. If the rainfall is too high, the plants will be seriously affected before and after the flowering period. After the diseased plants are found, 75% mancozeb 100 g/mu will be sprayed on 40 kg of water, and the central disease strain will be removed. , it is applied once every 7-10 days. When it was found that there were earthworms such as earthworms and floor tigers, 90% trichlorfon was used as a poison bait to spread in the field. In the presence of aphids, 25% deltamethrin could be used to spray 50 kg of 10 to 15 ml/mu of water. 9. The timely harvesting of potato plants withered, most of the stems and leaves yellow, the best harvest period when the tubers stop expanding. Food additives are compounds or natural substances added to food for the purpose of improving the color, aroma, and taste of food, as well as for the needs of anti-corrosion and processing technology. 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