Potatoes, also known as potatoes and potatoes, are widely grown in the country. Potatoes must be grown with sufficient light, knowledge of planting, pest control, etc。
Choose the good species. Autumn potatoes should choose the best species, such as “fuurita”, “tunnel 303” and “cunt potato 3”, which are pre-cooked, are fast-growing and have short hibernation periods。
And sowing in time. Potatoes are cold crops and are normally planted between late august and early september. It is therefore advisable to sow earlier and to produce more at an earlier stage。
Leach seed. Cultivation of the spring-sprout potato harvest must be preceded by the de-sleeping of the chips and the sprouts to promote timely seedling. The methodology is as follows。
1. Decontamination of blocks. Less than 50 grams of potatoes are cut off, and more than 50 grams of large varieties are cut off. When the potato plant is bought back, do not rush to cut the pieces, allowing them to cut them more than a week in the venom and coolness. Autumn sprouts need a cold word. Before sprouts, large varieties of potatoes are cut down with a sharp knife to the point of 3-4 pieces, each with one or two buds, each weighing 25-30 grams. If you find the rotten potatoes in the cut, you have to remove them in time. Cutters are to disinfect and prevent the spread of bacteria. The slices are then put into the cool water and the flour is washed away to heal by cutting the face. Then immersed for 30 minutes in a water solution of 0. 5-1ppm (nine20 should be dissolved with a high concentration of white wine or alcohol); then, when recovered, the chips were cut to the platinum for one day, pending the thawing of the face。
2. A timely sprouts: to take place in late august and early september. The sprout bed is the best for a ventilated, cold, empty room in the basement or cellar. When sprouts occur, the bed is covered by a wet wet soil (paddy or river sand or yellow soil) with potatoes placed on it; when the potatoes are larger, a layer of straw can be placed with potatoes, but not too many potatoes, suitable for 3-4 layers, with straw or wet river sand (or fine yellow soil). Maintain 25-28°c with wetness better than drying of surface sand. After 7-10 days, seedlings can be sowed when the bud is 1 cm long。
Fine seeding. Autumn potatoes are sowing too early to be fertilized because of high temperatures and the short periods of late birth, which can cause frost to death. It would be preferable to sow in early september, with a view to delivering the seed by 1 october; and to introduce a method of seeding rice straws to cover no-cultivated potatoes for cooking, as follows。
After the harvest of rice, potatoes are placed directly on the straw surface using straw to cover the potatoes, using the spare time of autumn and winter, using no-cultivation techniques。
1. Rice field treatment. The paddy harvest is accompanied by mud-drives and shallow paddy stakes. The first is the selection of fields where the terrain is easily drained; the second is the opening of trenches immediately after the rice harvest in the direction of drainage in the rice fields, where the compartments are driven by 3. 6 metres and the trenches are opened in a timely manner at a minimum depth of 27 cm or more; and the opening of four surrounding ditches at a depth of more than 33 cm。
2. Reasonable insulation. Rice potatoes and oilseeds can be grown with a wide range of 60 cm wide, 20 cm narrow, 23 cm wide and approximately 7,000 cm per acre. In mid-middle, two herbs can be dug free of cultivation in the middle of each line, 27 cm wide and 23 cm wide。
Three. Flow bottom. The usual acre is 1,500 kg of manure, 50 kg of phosphorus, 150-200 kg of grasswood ash and 45% of potassium sulphate compound fat. At the same time, attention should be paid to fertilizing。
In sum, each acre of potatoes must be covered with 1. 5 to 2 acres of paddy straw with a thickness of 10 to 15 centimetres, either in a plant or in a single species。
Field management
• refilling the seedlings and watering them in due course. When seedlings are produced, the soil is watered when it is dry, and if it is not dry, water is not watered; in the rainy season, care is taken to drain the ditch。
Weeding is ploughed in due course and fertilized. At 60-70 per cent, the acre was urea 2. 5-3 kg and water 1,600-2000 kg; at 30-40 cm height, the acre was ploughed with 40-50 kg of magma. Seymour is followed by weeding, earth-breeding, screeching, urea ~2-3 kg of urea for long and weak fields, and a month after seeding, spraying of 100 grams of potassium phosphate per acre with 50 kg of water at intervals of 7-10 days。
Combat pests and harvest them in time. In the case of potatoes, special attention should be paid to the prevention and treatment of the ailments, which are detected to be uprooted and destroyed in a timely manner, as well as to be combated by 800 times the agricultural cesone or 4,000 times the cyclactin; and to the timely prevention and treatment of the disease in time. When seeding and seeding, 2 kg of activated carbon is applied to the root soil with inhalant pesticides such as amphibians; when a strain is found in the medium term, it is timely to remove or remove the leaf and destroy it, and to be treated with 25% of the rhesus manganese 600 grams of liquid, two times at intervals of 7 to 10 days, aphids are found and treated with 2,000 to 3,000 times the liquid anti-americ spray。
In general, the potatoes are ripe for harvest between mid-december and late, with straw-covered potatoes that can draw straw, select a big harvest, and small ones that can cover straw and keep growing。
