Key points of Potato cultivation techniques
1. Preparation before sowing: in mid-February, prepare agricultural materials such as seed potatoes, pesticides, chemical fertilizers and agricultural films. Take the seed potatoes out of the basement and put them indoors at about 12 degrees Celsius to sprout.
2. Cut a good seed potato: make sure that each seed potato has at least 2 bud eyes and weighs 30 grams.
Left and right. The chopped seed potato pieces were mixed with medicine. The formula of the powder is to add 250 grams of 70% methyl topiramate wettable powder with 50 kg of fossil powder.
3. timely early sowing: generally sowing on March 5-15, with row spacing of 90 cm, plant spacing of 12 cm, sowing amount of 150kg per mu, and planting density of 5000 to 5200 plants per mu. Application per mu
Foot fertilizer: potassium sulfate compound fertilizer 50 kg, potassium sulfate 20 kg, diammonium 100 kg. Broadcast
Cover the film in time after planting.
4. Field management:
(1) timely film matting. After sowing, potatoes usually begin to emerge within 30 days of 25m / m.
At the same time, special personnel should be sent to inspect the field and find that the seedlings are unearthed and cut out the covered agricultural film in time, such as
If the film is not scratched in time, it is easy to cause the seedlings in the film to burn due to high temperature. There are 80% left in Jian Quan Tian.
Uncover all the agricultural film in time after the right seedling is unearthed.
(2) cultivate the soil by ploughing. After the emergence of the potato, the potato grows to about 8 mi 10 cm in the first place.
Secondary ploughing. The most suitable height of soil cultivation is 4ml / 5cm of exposed seedlings. At the budding stage, proceed with the first
Secondary ploughing to cultivate the soil.
(3) topdressing and watering. In the first intertillage, 20 kg of ammonium sulfate was applied per mu. This
In addition, it is necessary to timely pour good seedling protection water, budding water and potato expansion water.
(4) timely prevention and control of diseases and insect pests. In mid to late May, timely control of underground pests and spraying
Downy mildew blight net to prevent potato late blight. Timely control of aphids from the end of May to the beginning of June.
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Potato dregs can be made into protein feed
Recently, researchers at Harbin Institute of Technology have made gratifying progress in the production of single-cell protein feed from waste potato dregs. The researchers not only screened out the excellent strain combination for producing cell protein, but also designed and formulated a complete technological route for the production of single-cell protein feed from potato dregs. The production of cellular protein by liquid fermentation by adding juice to potato dregs is proposed and applied for the first time at home and abroad. China produces more than 7000 million tons of potatoes annually and processes more than 3.4 million tons of starch surplus potato dregs.
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Technical methods of Potato cultivation
First, catch early before snatching and get ready. The first is the choice of stubble, the first stubble is corn and wheat, the second is soybean and sorghum, and the beet stubble is the worst. The second is the selection of plots, such as soft soil, high content of organic matter, deep soil layer, drought and waterlogging resistance, good fertilizer and water conservation, and suitable for tuber growth. The third is to straighten the ground, the main depth is about 25 cm, so that the leveling and raking fine, the upper solid and lower virtual, is conducive to the formation of tubers, good stem shape, and increase the yield. Fourth, rational fertilization, and organic fertilizer is the main base fertilizer.
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