How to Grow Sweet Potatoes? Sweet Potato Planting Methods and Key Techniques

Sweet potato is also called di gua (sweet potato), sweet potato can be used in porridge, it is very sweet, and eating more sweet potato is good for the skin. So how do you grow sweet potatoes?

1. How to grow sweet potatoes

1. Raising seedlings

Choose a sunny, wind-sheltered seedbed site with deep, fertile soil, and prepare the soil finely. Sweet potato seed is generally stored flat in a pit, with the flat surface of the tuber slightly below the soil surface and kept level, so as to achieve uniform sprouting. After sprouting, uncover the plastic film at both ends on a sunny day in time to lower the temperature, and at night it must be covered with plastic film again to keep warm. After uniform sprouting, uncover the film in time, water and apply additional fertilizer, mainly farmyard manure. And spray with Xin Gao Zhi Mo (new high-fat film) to preserve soil moisture, prevent water evaporation, keep warm and prevent freezing, and isolate pests and diseases. Once the temperature stabilizes above 20 degrees Celsius, do not cover with film, and remove the plastic film.

2. Reasonable close planting, timely early planting

From Xiaoman (Grain Buds) to Xiazhi (Summer Solstice) is the best season for planting sweet potatoes. When planting sweet potato seedlings on a sunny day, water first, then plant. The planting density depends on the width of the ridge; plant reasonably close to achieve more than 3000 to 3500 plants per mu. Then spray with Xin Gao Zhi Mo (new high-fat film), which can effectively prevent above-ground water from evaporating and the water in the seedling body from transpiring, isolate pests and diseases, and help it quickly adapt to the new environment and grow healthily.

3. Fertilizer and water management

Sweet potato is a crop that likes potassium fertilizer, and in particular you must not apply fertilizers such as large amounts of nitrogen fertilizer indiscriminately, so as not to cause the sweet potato vines to grow too vigorously and affect yield and starch content. Note: fertilization must be timed well, preferably 15-20 days after planting the seedlings. At the same time, spray with Xin Gao Zhi Mo (new high-fat film), which can prevent pathogen infection, improve the ability to resist natural disasters, increase the intensity of photosynthesis, and protect the seedlings so they grow strong. During the tuber bulking stage, spray with Di Guo Zhuang Di Ling, so that the nutrient transport vessels of the underground fruit become thicker, improving the vitality of underground fruit bulking, making the fruit surface smooth, the fruit shape robust, and achieving high quality and high yield.

4. Vine management

Sweet potato is a long-vine type crop; where fertilizer and water conditions are suitable, the sweet potato vines can grow to 4-5 m. If not controlled, this will seriously affect yield. The specific method is: timely cultivating, weeding, and earthing up, as well as practicing the short-cutting method, and spraying with Cu Hua Wang No. 3, which can transform the plant's vegetative growth into reproductive nutrition, inhibit the excessive growth of the main shoot, and promote flower bud differentiation. Note: you must not cut off an entire sweet potato vine; after each short cut, lift the vine and place it back in its original position. The sweet potato vines must not be completely turned over, to avoid disrupting the leaf area index, which is beneficial to photosynthesis and promotes high yield.