How can sweet potatoes be planted for high yield?

First, high-quality strong seedlings, whether obtained by asexual cutting or sexual reproduction, must have lush roots and good seed characteristics. We must pay attention to breeding high-yield and high-quality sweet potatoes as seed potatoes in the cultivation process last year.

Second, the application of high-quality organic fertilizer, organic fertilizer as the base fertilizer of sweet potato, the dosage should be larger. Sheepfold manure and chicken powder are the best organic fertilizers, followed by pig manure and cow dung.

Three. Reasonable close planting, generally the spacing between seedlings is 30cm.

Four. Strictly control the overgrowth of seedlings, pay attention to proper pruning at seedling stage, strictly control the overgrowth of seedlings, and prevent vigorous seedlings. As long as the reasonable density is controlled, there is room for a good harvest of sweet potatoes.

Fifth, when the young stems begin to swell, increase the application of phosphorus and potassium fertilizer. 30 kg of diamine and 0/5 kg of potash fertilizer/kloc can be used per mu. And provide enough water to keep the water in the field.

Sixth, the arrival of the Millennium solar term, controlling water and letting the field dry, is conducive to the increase of sweet potato sugar.

Seven. Reasonable control of pests, especially grubs. When the base fertilizer is used, phoxim granules can be mixed into the soil, which can be used reasonably because of different concentrations.