In order to achieve the goal of high yield and high quality, sweet potato should be well managed for fertilizer and water management, and the management of water needed to ensure the normal growth of sweet potato is also a top priority. Sweet potato is a crop that is drought-tolerant, awkward, and requires more water. Too little water can affect the normal growth of sweet potatoes. How do you manage the water management of sweet potato land?
1. The land with irrigation conditions shall be timely watered according to the law of sweet potato requiring fertilizer under drought conditions. Including planting water, rooting water, hair tree water, promoting vines, big water and so on. After the planting is completed, the weather is always dry when the relative water holding capacity of the soil is lower than 50%. In the early period, the mango vines grow slowly, defoliate and dead vines, and when they are heavy, they cause dead plague. Therefore, irrigation can be performed timely.
2. For lands without irrigation conditions, use a water tanker to transport water under a drought condition to relieve drought, but be careful not to do it when the sun is strong and the temperature is high. It should be carried out sooner or later. In general, the sweet potato in the northern dryland will enter the rainy season from July to August in the season, and no additional irrigation is needed. The tuber stage is a critical period that affects the size and yield of tubers. It needs to be filled with potato water (sewage water), sometimes combined with the application of potassium sulfate, 5 kg of water, 500 kg of water, or potassium dihydrogen phosphate, to effectively prevent the premature decline of sweet potato. .
3, do a good job in low-lying land masses during the rainy season. Sweet potato is also a frightened crop. When the relative soil moisture content is higher than 80%, it tends to cause stems and leaves to grow long. When the moisture content is higher than 90%, the soil permeability deteriorates, affecting normal growth. If sweet potato land is flooded for more than 1 day, it needs to be done. Good drainage work will be ruled out in a timely manner. Afterwards, cultivating and cultivating cultivars should be carried out to improve the growth conditions of sweet potatoes.
4. Prepare soil preparation before planting. The direction of ridging should be vertical and the ridge should be ridged in the horizontal direction to make each ridge a horizontal ditch to intercept the effective precipitation and to avoid artificial depression.
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