Sweet potato planting technology and management, so that high yield can be achieved.

Planting time: April to May in spring. Seed selection: selecting disease-free sweet potato seed potatoes. Planting: take out after soaking the pesticide, plant the seed potato in the soil, sprinkle a layer of withered rotten wood, cover the soil and gently compact it, wait until the seedling grows to 30-40 cm for cuttage. Fertilization: urea, compound fertilizer, potassium fertilizer and other fertilizers. Stemming: Clear the sweet potato vine and grow it in one direction. Pest control: Trichlorfon solution sprayed. Harvest: September to October.

I. Planting time

1, sweet potato in autumn and winter season can be harvested, so the growth period is longer, generally through seedling and then cuttage, and then officially began to grow.

2, sweet potato planting time is in the spring of April to May, the best planting period is in mid-May, because the temperature of this period, basically stable 15-20℃, planting words can quickly sprout.

II. Seed selection

The planting method of sweet potato is relatively simple, but selecting seeds is the key to high yield. Therefore, when selecting seeds, it is necessary to observe whether sweet potato seeds are robust and disease-free, and then select varieties with larger volume and more buds for planting.

III. Cultivation

1. Soak the sweet potato seed potatoes in the multi-spiritual bacteria solution for about 10 minutes, take them out and plant them. When planting, distinguish the head and tail, otherwise the seedlings will not grow evenly.

2. If it is really unclear, it can also be placed obliquely, and a layer of withered rotten wood can be sprinkled on the seed potato, and then a small amount of soil can be covered.

3, during the fear that the temperature does not meet the requirements, can cover a layer of plastic film insulation, wait until the sweet potato seedlings grow to 30-40cm, then remove the plastic film, the seedlings stem and leaf cut off, and then 3 leaves for a section, cut into small sections according to cuttage.

4. When cutting, the interval between each plant is about 30cm.

IV. Fertilization

1. After planting, it is necessary to apply fertilizer for the first time to promote the growth of new roots in sweet potato seedlings. Generally, human feces and urine can be applied.

2. The second fertilization is to apply appropriate urea after the sweet potato survives to promote the growth of sweet potato seedlings neatly.

3. The third time is to apply seedling fertilizer, urea plus compound fertilizer, and then strong fruit fertilizer, generally potassium fertilizer and boron fertilizer.

V. Shunmiao

1, in order to facilitate the later harvest, as well as excess branches and leaves consume nutrients, it is necessary to timely field sweet potato seedlings.

2. The sweet potato vine can be sorted out and grown in one direction. It will be convenient when harvesting. At the same time, the excess branches and leaves can be removed.

VI. Prevention and control of diseases and insect pests

1. The pests of sweet potatoes include leaf rollers, aphids, grubs, and voles. Leaf rollers and aphids will harm sweet potato leaves and affect photosynthesis of sweet potatoes. Grubs and voles prefer to eat sweet potatoes in the field, and they will bite the sweet potatoes in the field.

2. For pests that harm branches and leaves, trichlorfon solution can be sprayed, while voles can put their favorite food in the field and then mix with rodenticide to trap them.

VII. Harvesting

The harvest time is from September to October, during which the sweet potato stems and leaves can be cut off, and then the sweet potato is dug out from the field and stored in the cellar to ensure that the water is not easy to lose.