High-yielding cultivation techniques of Potato with Rice Straw
1. Select varieties
The varieties of fresh potato vegetables are Zihua 851, Zhongshu 3, Fewurita and so on.
2. Prepare the land and make beds.
Soil selection: potato can adapt to a wide range of soil, sand and mud can be cultivated. But choose loose soil, good drainage, PH5.5-6.5 slightly acidic sandy soil. Potato belongs to Solanaceae, so it is not allowed to be cropped continuously or centrally mixed with other Solanaceae crops.
Small high ridge soil preparation: after harvesting, use a rotary tiller to break the soil, and then use a border preparation machine to set up ridges with a width of 110 Mel 120 cm, a ridge height of 30-40 cm, a ridge width of 70 mi 80 cm, and a furrow width of 20 mi 25 cm between the two ridges. After the ridging machine ridges, and then manually use hoes to fine adjust the bed, to achieve fine crushing, neatness.
3. Seed potato treatment
Selected seed potato: the dormancy period of seed potato is not broken, resulting in irregular germination after sowing, low emergence rate and long emergence time. Seed potatoes should be strictly selected and diseased and rotten potatoes should be eliminated. The healthy seed potato has young potato pieces with complete potato pieces, no diseases and insect pests, no injury and freezing, smooth potato skin and fresh color. The cracked epidermis, deformities, deformities, tips, diseased spots, frozen stiff and degraded tubers should all be eliminated.
Seed potato chips: larger seed potatoes need to be cut into several pieces before sowing, and small potatoes should also be cut where there are no teeth, because after cutting, oxygen can enter the potato smoothly from the incision, thus accelerating the activity of enzymes, breaking dormancy, and promoting neat germination. The size of the cut piece should be 20 g-25 g small seed potato, and it should be inclined or cut to the top according to the order of tooth eye arrangement from the navel (pay attention to not hurting the tooth eye), so that there are top teeth on each seed potato.
Seed potato disinfection: when cutting seed potatoes, a basin of disinfectant (0.1% potassium permanganate or 75% alcohol or 0.5% formalin solution) should be placed next to it. For each seed potato cut, the knife should be disinfected once. After cutting the seed potato, soak the cut seed potato in 0.5% formalin solution for 20 minutes for 30 minutes, then put the seed potato into a pile and cover it with thin film.
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Sowing method of No-tillage cultivation of Potato covered with Straw
There are three main sowing methods of potato straw mulching no-tillage cultivation: 1. No-tillage of rice field covered with rice straw directly, high-yield ditch (drainage and irrigation ditch) is dug, ditch width is 20 cm, depth is 15 cm, border width (ditch) is 150 cm. The soil dug out should not be piled on the edge of the ditch, and the border surface should be slightly arched to avoid stagnant water. General small grass and rice stubble do not affect planting, if there is a large grass can be trampled down or hoed, there is no need to use herbicides. Sow 4 rows in each row, planting in wide and narrow rows, with wide rows in the middle, row spacing of 34 cm and narrow row spacing of 28 cm on both sides.
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What are the cultivation points of potato-rice-vegetable model?
Potato-rice-vegetable model is mainly popularized in middle and high altitude areas. The main points of cultivation are as follows: (1) late-maturing varieties such as Ji Zhangru No. 5 with high resistance to late blight should be selected. (2) High quality combinations such as Liangyou 2186 and D702 Youduo No. 1 should be selected for late rice to give full play to the advantages of large temperature difference between day and night in autumn and good grain filling in middle and high altitude areas. (3) in the middle and high altitude areas, the temperature is low in winter, so cold-tolerant varieties and cold-tolerant varieties should be selected for winter vegetables.
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