Sweet potato planting
Sweet potato is a crop with a large planting area in addition to wheat and corn, second only to rice. The yield of sweet potatoes per mu is generally 4-5 thousand catties, if you want to have a high yield of sweet potatoes, in fact, the method is very simple, these 4 points are best to be done in place, let's see which three points are.
1. Land preparation. The soil is loose and fertile, which is the prerequisite for high yield of sweet potatoes. Pay attention to the subsoil, try to avoid rotary tillage, and pay attention not to deepen too much at one time, so as not to turn over too much raw soil and affect the growth of sweet potatoes in the season.
2. Fertilization. The first step is to choose the right fertilizer variety and apply the right fertilization techniques. Sweet potatoes are root crops that require more nutrients such as potassium, phosphorus, and nitrogen. But pay attention not too much, otherwise the vegetative growth is too vigorous, should be based on organic fertilizer, appropriate amount of chemical fertilizer.
3. Planting. The high-yield planting method of sweet potato is horizontal planting, so that the seedlings are flat in the soil, and the depth of the soil is about 5 cm, so that the root system has high oxygen content in the shallow soil, is easy to accept sunlight, and the temperature rises quickly and cools down quickly, and the temperature difference between day and night is large, which is conducive to root growth and potato tuber expansion.
Fourth, control the prosperity. If it is found that the sweet potato has lush branches, too long pitch, and upturned tips, it is a vigorous growth behavior. At this time, the overall nutrient occupation and consumption of ground stems and leaves on the plant is too large, which makes it difficult for sweet potato to shift from vegetative growth to reproductive growth, and will also bring a high incidence of pests and diseases to sweet potato. Sweet potatoes can be controlled by removing the main growth points and spraying plant growth regulators.