Choose a good variety, small whole potato sowing. It is advisable to use healthy whole potatoes of about 50 grams in a good physiological state for seeding. Before planting, the diseased potatoes and rotten potatoes are removed, and the fungicides such as carbendazim are used for seed dressing. If the potato chips are too large and must be cut, it should be carried out 3 to 5 days before the sowing. Each piece is guaranteed to have 1~2 shoots. Spread the air under the cool conditions in the house to make the incision fully heal, avoid the loss of moisture after sowing, and strictly sterilize the cutting knife when cutting, so as to avoid the infection between the diseases.
After the flat broadcast, ridge. In addition to winter potato, the potato production is mostly carried out in the Tiantianxing pond. The planting density is relatively rare, generally around 1300~1500 ponds. Under drought conditions, it is easy to cause irregularities and lack of seedlings and ponds. Planting ridges for cultivation is conducive to increasing the number of plants per acre. It is required to plant a row spacing of 80 cm and a plant spacing of 20 cm to ensure that about 4,000 plants per acre are planted. In order to reduce the loss of moisture and to facilitate the acceptance of rainwater, it does not ridge when covering the soil, and maintains a slightly concave or flat groove. After emergence, the 25 cm high ridge is formed by cultivating the soil twice or more to facilitate the drainage of the sweet potato. Linyi Fertilizer Network Copyright
Due to local conditions, the sowing period and deep sowing should be appropriately postponed. In order to shorten the interval between sowing date and rainy season and reduce the adverse effects of drought, it should be properly seasoned according to local conditions, and the sowing period should be postponed for 15~20 days. When sowing, deep sowing can be used to protect the seedlings. Ditching or ponding is deeper than normal years, and the thickness of the covering layer is preferably 10-15 cm. It can also be used with the water-retaining agent when planting. It is generally used at the same time when applying the base fertilizer, about 1~2 kg per mu. Linyi Fertilizer Network Copyright
Covering the mulch. In areas with economic conditions and good sensation of night lake and lake, or water sources, the area where the pond can be irrigated during planting can be covered with plastic film, which is conducive to maintaining soil moisture, ensuring emergence and utilizing crop growth. Rainfall during the period is needed for potato growth, which can also reduce water evaporation, increase soil temperature and humidity, and reduce soil erosion. Add organic fertilizer and phosphorus and potassium fertilizer. Due to the constraints of economic conditions, the investment in potato production is generally insufficient, and fertilization does not pay attention to the combined application of NPK, and most of them apply nitrogen fertilizer. The potato is a tuber crop, and the demand for potassium is large. Only when it meets its needs can it grow normally and get good yields. Partial application of nitrogen fertilizer often leads to the occurrence and harm of late blight. Strengthen the management of cultivating. After the emergence of the potato, the soil should be ploughed in time to eliminate the weeds in the field, and the soil environment suitable for potato growth should be created. When the buds are used, the agronomic measures such as fertilization should be used to cultivate the soil. Generally, it is required to cultivate the soil 2 to 3 times during the growth period to achieve no field. Weeds, smooth, no water in the rainy season. Linyi Fertilizer Network Copyright
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