1. Site selection and preparation:
Huaishan requires warm, humid, and sunny environmental conditions, and develops well in deep, fertile, loose, and well-drained sandy soil. A few days before planting, 5,000 kilograms of manure, plant ash, compost and other mixed fertilizers should be applied as base fertilizer per 667 square meters (1 mu). After fertilizing, rake shallowly once to raise a border of 25 to 30 cm high and 60 to 70 cm wide.
2. Planting:
Plant after the vernal equinox, dig a trench 6 to 10 cm deep in the border, and plant in double rows. The appropriate row spacing is 25 to 30 cm, and the plant spacing is about 20 cm. Place the rhizome or tuber for seeding flatly in the trench, and then cover it with soil to level the border.
3. Field management:
1. Weeding and weeding: After Huaishan is planted, several seedlings can often grow from each section of stem. If there are too many seedlings, the plant will be damaged. emaciated. Therefore, when the seedlings are about 30 cm long, some seedlings and branches on the seedlings should be appropriately thinned out, leaving only 1 to 2 strong seedlings to ensure the robust growth of the plants. In addition, the growing period of Huaishan is about five months in the hot and rainy season. The soil is easy to compact and weeds grow quickly. It is necessary to strengthen cultivating and weeding to ensure the effective supply of fertilizers.
2. Top dressing: Huaishan is a fertilizer-loving crop. In addition to sufficient base fertilizer, it also needs to be top-dressed multiple times to meet its nutrient needs. First time combined with weeding. Apply 500 kilograms of thin human feces per 667 square meters. The second and third times were applied in June and July respectively. 1,500 kilograms of human feces or 5 kilograms of urea were applied to the water per 667 square meters each time to promote the growth of the plants. For the fourth time, in early August, 1,000 kilograms of manure and 50 kilograms of peanut bran were mixed and applied to 667 square meters and the soil was cultivated to promote the growth of underground rhizomes and increase yields.
3. Fence topping: Huaishan is a twining herbaceous plant. After the seedlings grow to 20 centimeters, small bamboo strips can be inserted into the border to form a fence shape for the seedlings to wrap around and grow upward to facilitate ventilation and light transmission between the plants, enhance photosynthesis, and promote root growth. When the Huaishan vines grow to the top of the fence, remove the top buds to encourage some of the lateral buds to grow into branches. Increase the photosynthesis area to facilitate the production and accumulation of nutrients.
4. Irrigation: There is no need to irrigate most of the time during the growth period of Huaishan. However, if the weather is dry and the soil moisture content is low, appropriate irrigation is required. When irrigating, furrow irrigation should be used to allow water to soak into the border soil, and water must not accumulate.
4. Pest and disease control:
There are not many pests in Huaishan, mainly diseases, such as anthracnose and brown spot. Prevention and treatment should focus on prevention and combine prevention and treatment. The seeds can be disinfected and prevented by soaking the seeds in 50 times of thiophanate and 1500 times solution for 3 to 5 minutes. You can also use 1:1:150 Bordeaux solution after emergence, spray once every 10 to 15 days, and spray 2 to 3 times continuously for prevention. After the onset of disease, diseased leaves should be promptly removed and burned, and sprayed with 500 times of 65 generation Senzinc or 1000 to 1500 times of thiophanate 50 once every 7 days, and sprayed 2 to 3 times continuously.