How many kilograms of sweet potatoes can be produced per mu?

How many kilograms of sweet potato are generally produced per mu?

Sweet potatoes are sweet potatoes. Generally speaking, the yield of sweet potatoes per mu is 2,000-3,000 kilograms, and the high yield can reach 4,000 kilograms . In fact, if more efforts are made in soil quality, fertilizer and management, the yield of 10,000 kilograms per mu of sweet potatoes can still be achieved.

The yield of sweet potatoes is related to the planting season and variety. The yield of sweet potatoes planted in spring is about 7,000 kilograms per mu , and the yield of sweet potatoes planted in summer is about 5,000 kilograms . In addition, there are many types of sweet potatoes, such as white potatoes, watermelon sweet potatoes, etc., and the yields of different varieties also vary.

High-yield planting technology of sweet potato

Sweet potatoes like warmth and are afraid of cold, so a certain temperature must be maintained during planting. If the temperature is not suitable, it will affect the growth and development of sweet potatoes, resulting in lower yields. The following will specifically introduce how to grow sweet potatoes for higher yields.

Choose a good plot for planting

Generally speaking, the yield of sweet potatoes has a lot to do with the soil . Generally, sweet potatoes prefer sandy loam with thick soil layer, loose and breathable soil, and good drainage. It is best not to plant them continuously, and the previous crop should not be sweet potatoes.

Deep cultivation

When planting sweet potatoes, the depth of the ploughing is generally 25 centimeters, but if you want a high yield, you need to plough it to about 35 centimeters . Deep ploughing can enhance the air permeability of the soil, which is conducive to water storage and moisture conservation, can promote the root system of sweet potatoes to grow deep, and can enhance drought resistance and waterlogging resistance.

Ridge cultivation

If you want to increase the yield of sweet potatoes, you need to pay attention to ridge cultivation. Ridge cultivation can increase the yield by about 20% compared with ordinary cultivation . When ridge cultivation, it is recommended to have a ridge height of 30-35 cm, a ridge distance of 70 cm, two rows in one ridge, and a plant distance of about 30 cm.

Scientific fertilization

There are many things to pay attention to when applying fertilizers. Not all fertilizers can achieve high yields, so choosing the right fertilizer is critical. Fertilization is generally based on base fertilizer, which generally accounts for 80% of the total fertilizer.

The editor provides a plan for everyone, potato friends can refer to it: apply 7,000 kilograms of decomposed farmyard manure, 70 kilograms of superphosphate, 60 kilograms of ammonium sulfate, 50 kilograms of potassium sulfate, and 2 kilograms of zinc sulfate per mu. However, the amount of nitrogen fertilizer used needs to be determined according to the fertility of the soil .

Apply fertilizer skillfully

In the middle and late stages of sweet potato growth, the tubers begin to swell gradually. At this time, potassium fertilizer is needed to irrigate the roots . In late August, 1% potassium dihydrogen phosphate can be used at a rate of 200-300 kg per mu. At the same time, potassium dihydrogen phosphate foliar fertilizer can be sprayed on the leaves every 15 days during planting.