Sweet potato high-yield cultivation techniques are as follows:

1, base fertilizer, to plant a high-yield sweet potatoes, we should pay attention to more basal fertilizer, basal fertilizer more than half in the deep ploughing into the bottom, the rest of the basal fertilizer can be in the ridge when the concentration of the bottom of the ridge or in the planting of the hole. This method of fertilizer application has a higher efficiency and utilization rate. Before planting, you also need to use potassium dihydrogen phosphate solution to dip potato seedlings, remove and dry before planting.

2, fertilizer, in order to ensure that the whole seedling, promote early development, accelerate the growth of potato seedlings, need to apply fast-acting fertilizer, which can play the role of seedling flush, and apply a certain amount of nitrogen fertilizer, watering, which can effectively improve the sweet potato growth. It is carried out before and after the regimentation period, and its purpose is to promote the growth of stems and leaves and the formation of potato lumps. Apply sufficient nitrogen fertilizer, more or less according to the seedling growth.

3, seize the key period, reasonable control, you can use doxorubicin and potassium dihydrogen phosphate with the control, when the main stem of sweet potato grows to 50 cm, you can remove the top bud, branching grows to 35 cm, remove the top bud, inhibit the stem and vine prolongation, to avoid nutrient depletion, and effectively increase the yield of sweet potato.

4, fertilization should be deep, layered combination, this method for sweet potato early early hair, tuber early formation is very helpful, but also can prevent the mid-term growth and late early decline. Deep fertilization, can promote a large number of roots distributed in the deeper layer, this layer of soil nutrients, coupled with watering, can improve sufficient nutrition for the tuber.

Sweet potato

Sweet potato alias: yam, cyclamen family sweet potato annual herb. It is native to South America and the Greater and Lesser Antilles, and is widely cultivated in tropical and subtropical areas around the world. It is more than 2 meters long, lying flat on the ground diagonally, the leaf blade is usually broadly ovate, 4 to 13 centimeters long, 3 to 13 centimeters wide, the corolla pink, white, lavender or purple.

Reference: Huinong network - sweet potato high-yield planting technology