Three skills of Autumn Potato Field Management
Field management in autumn and winter is the key technology to obtain high yield of autumn potato. The specific measures are as follows:
1. Timely ploughing, weeding, seedling topdressing: because the sunshine in autumn is short, which is suitable for tuber growth, the plant tubers are early and not easy to grow, so promotion should be given priority to in management. When potato seedlings are 60-70%, urea 2.5-kilogram per mu, water and fertilizer 1600-2000 kg per mu are applied; when growing to 30-40 cm, 500 kg of plant ash per mu and 40 kg of urine to human and livestock are used to mix well and cultivate soil in base compartments. to promote early growth and rapid growth.
2. Clear the drainage ditch and reduce the humidity in the field: continuous watering should be carried out after sowing, keeping the ridge moist until seedling emergence. When the temperature decreases in the later stage, we should reduce irrigation, clean up drainage and wet ditches, and gradually thicken the soil to prevent cold and protect tubers.
3. Timely use of medicine to control potato late blight and aphids: the most effective agent to control late blight is 600 times of 25% Ruidu Manganese Zinc solution, or 72% Klu 700 times solution spray; the effective agent to control aphids should be pirimicarb 2000-3000 times liquid spray
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Cultivation techniques of Autumn Potato
The growth condition of autumn potato is opposite to that of spring potato, with high temperature and showers in the early stage, low temperature frost in the later stage, and the growth period is shorter than that of spring potato. Seed potato is a kind of potato harvested in spring, which is planted in August and September, and the corm is still dormant for 50 days from harvest to sowing. If there is no seed potato treatment, the seedling will emerge late and uneven, and a large number of potato pieces will rot, resulting in the failure of autumn planting. Therefore, it is necessary to select excellent varieties with short early dormancy period, seed potato treatment, release dormancy, timely late sowing and prevent rotten seeds in order to be successful. 1. Spring sowing is used in the treatment of seed potato.
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"five passes" for High yield of Autumn Potato
1. Healthy tubers with smooth skin, shallow bud eyes and 30g to 50g should be selected for improved varieties. Store in a low temperature and ventilated place. Cut into pieces and cool for 3-5 days before planting to ensure that autumn sowing and seedling emergence are neat. Second, soak seeds to promote sprouting, cut the selected potato pieces longitudinally along the top and down, rinse the solution and starch from the incision with cold water, and then soak in 1% lime water (1 part of lime powder, 100 parts of clear water) for 1 hour. then take it out and put it in a shady place to dry and sprout. There are two methods of sprouting: 1.
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