1. Select the fields and apply the base fattening。
Potato is highly adaptable and can be planted either in water or on dry land, with the choice of a fertile field with a deep soil or sand field or vegetable field. Each acre of manure 1500-2000 kg of manure plus a compound of three dollars 50 kg of manure, two ploughs of two dredges, soil levelling and soil decomposition to meet the long-lived requirements of high fattening of taro。
Ii. Cultivation of seedlings, timely transfer of plants, and rational planting。
The seedlings are grown with kot, the first of which was in may-june, and the following year, at the end of january and in early february, the plant was planted without seedlings and directly with kot. The water fields are suitable for a range of 90 x 60 cm or 90 x 50 cm, with an acre guarantee of 1,200 - 1,500 cm, a suitable range of 70 x 40 cm or 60 x 50 cm, an acre of 2,200 - 2300 cm, acre of good traffic, and a small, medium and small seed plant for management purposes。
Iii. Field management
(i) potato management: 1, moisture. At the time of planting, a thin layer of 3-6 centimetres is required to maintain deep water of 9-12 centimetres after the tubing has grown to 0. 25 kg。
Weeding follows fat. Weeding is combined with fatting, weeding, then fatting. Potato plants are large, have a long reproductive period and require large fattening, except for the application of foot-floor fatting, which must be followed up in stages, but in accordance with the growth characteristics of taro “autumn long leaves (a tree) and post-autumn long roots (brains)” and when they grow up to or around 30 centimetres in pursuit of seed fattening, they apply a compound weight of 50 kilograms per acre, 5 kilograms of urea or 60 kilograms of urea or ammonium carbon, 50 kilograms of calcium, 60 to 70 centimetres (6-7 leaf), 80 kilograms of composite urea and 80 kilograms of carbon ammonium, 100 kilograms of urea per acre, and 100 kilograms of urea per acre, sufficient to meet the need for chlorocin, 100 kilograms of calcium, 7-10 days before the onset of the fall, they begin to swell, they are required to recompose, they are required to recompose, and they are required to recombble with 3 tons of nitrous acid, increased by 3 tons of 。
3. Peasure. Potatoes are grown 4-5 times in order to grow normally, the first is grown up to about 0. 25 kg, and the next few times is better when the tubers come out。
4. Removal of tarts in due course. The fact that the taro is not removed affects the growth of the taro, leading to low yields and low efficiency, and therefore must be removed in a timely manner when the taro is released。
5. Pest control。
(1) potato disease consists mainly of diseases of disease and corruption: one is used in rotation, increasing the application of decomposition organic and phosphorous and potassium fertilizers. Improved management of water fertilizers in the field, detection of the immediate removal of the strain, timely drainage of the field and inoculation of the field. In the early stages of the disease, the disease is selected for the use of methadoxin, manganese zinc, venomicides, benders, etc., and for the application of one type of agrococin spray, three times in a row. Seventy-two per cent of the diseases were selected for agrococin wettable powder 3,000 times, 53. 9 per cent could kill 1,200 times more liquid, 1:1:100 boldos 75-100 litres/acre, or one spray, 7-10 days and 2-3。
(2) the main pests above the ground are red spiders, aphids, maggots, maggots, subterraneans, tigers, filamental worms, etc., which can be combated with acaricide, kung fu, toxoids, green cabbage or pesticides。
(ii) vegetable tart management: vegetable tart needs to be saturated, soil must be wet from the end of july to the end of august, fertilizer needs to be big enough to catch up early, and only once will it be necessary to catch up. At the end of july/august, 60 kg of compound fertilizer or urea with 100 kg of calcium and 20 kg of potassium sulphate per acre, combined with high-breed soil, after application, water, external fattening, pest control and management of tara。
