Convolvulus, also known as bamboo leafy vegetables, cabbages, leeks, vegetables, or rattan dishes, is a fast-growing green leaf vegetable that has been actively introduced throughout the country in recent years. Its main management techniques are as follows: (a) Breeding Seedlings of spinach seedlings are relatively thin and not hard, and water absorption is relatively fast. Dry seeds can be sown and germinated. Germination sowing. Such as 300 square meters per greenhouse, about 2.5 kg of seed. A 1/1000 thiophanate was soaked for 30 minutes, then washed several times and soaked in fresh water for 22 hours. Wash and wash with a gauze wrapped in a thermostat at 30 °C germination, until the seeds can be sown to break the dew. Before sowing, first put small stone rice into the planting cup at 2/3, and close up in the nursery trough, about 2,000 cups per tank, and put clear water in the tank to 1/3 of the planting cup. Each planting cup sowing 3 seeds, the root tip down, after the broadcast is covered with a layer of small stone rice, slightly cover the seeds. The grooved surface is covered with a foam plate to maintain the humidity in the tank, and the ground water is continuously dried. Germination Soaking: The seed coat of the water spinach seeds is thick and hard, if direct sowing will be due to low temperature and germination is slow, in case of a long period of low temperature and rainy weather, it will cause the seeds to decay, so it is appropriate to germination, can be soaked in warm water of about 30 °C 18-20 hours, then germinate in a pregerminator at 30°C with a cloth wrapped in sand. When the seeds are 50%-60% white, the seeds can be sowed. (2) Preparation before planting 1. When selecting a site, choose a land with sufficient sunshine and no shade around, and the soil should be loose and air-permeable, the pH value should be appropriate, and the soil moisture is appropriate. It must be suitable for the water spinach. The growth of the soil requires soil preparation before it can be planted. We should deep in the soil. If conditions are right, use rotary cultivators for rotation. The depth should be about 10-15cm more appropriate. Root height may be determined by the depth of the root of the watercress, and the depth should be around 10-15cm. After the soil is leveled, it should be made into a north-south ridge. The width of the crucible should be about 1.2m. The rake height is 0.2m and the width is 0.3m, in order to facilitate the subsequent watering and other production management. We can hit a partition every 0.3 meters or so. The weeds in the land should be cleared before the site preparation. In order to prevent weeds and water spinach seeds compete for nutrients. 3. The application of basal fertilizer disinfection method is based on the standard of 100kg of lime per 667m2. Spread evenly. After the sowing, the depth of the soil shall be approximately 15-20 cm. After deep soiling, the soil shall be air-dried. Drying can be done 1-2 days after sowing. (c) Colonization Due to the growth of the water spinach, the colonization should be carried out in the later period, and the dense parts should be removed so that the spinach can grow better. After picking, watering should be applied to organic fertilizer to supplement the nutrients. (IV) Field management 1. After cultivating live seedlings of arable crops, seedlings are transplanted or survived, combined with cultivating and weeding, 666.7 square meters apply 2-3 to 2,000 adult animal manures, and apply water once every 3-5 days. About 10-15 days after the sowing of the fertilizer, when the seedlings grow to 4-6cm, we can open the plastic film. If the film is not opened in time, the development of the water spinach seedlings will be affected. It even caused the death of the young seedlings. Accompanied by the growth of spinach seedlings. Other grasses will also grow. They will compete for nutrients with the spiny vegetables. Not conducive to the growth of water spinach. Therefore, we must carry out cultivating and weeding. All weeds on the surface should be unplugged. When cultivating the sorghum surface. Everyone should pay attention to the cultivator not to hurt the plants. It is not conducive to the growth of plants. In the field management in the future, we must always pay attention to the weeds in the field, see the weeds, and remove them in time to ensure the growth of the water spinach. Convolvulus is a crop that is harvested many times. Therefore, in addition to applying base fertilizer, it is necessary to carry out multiple stages of top dressing in order to obtain high yields. The seedling stage can be applied with 10%-15% of dilute human feces and urine, and the amount of mu is 1000-1500 kg. When the seedlings have 3-4 true leaves, 15-20 kg of compound fertilizer and 2-4 kg of urea are used in combination, and the harvest time is 1 to 5-8 kg (each mu) of compound fertilizer. 3. Moisture Management Watch the soil for dry and wet conditions. If the soil is dry, it should be watered. When watering, the amount of water must be sufficient and it should be poured thoroughly. Let the soil absorb moisture sufficiently. In the following day-to-day management, in general, as long as the soil is seen to be relatively dry, it can be watered. Convolvulus is a crop that has been harvested many times. Therefore, in addition to applying base fertilizer, it is necessary to apply topdressing to obtain high yields. When the water spinach seedling grows to 5-10cm, it can be topdressed for the first time. When top dressing, topdressing should be carried out with a standard of 500-700kg of organic fertilizer per 667m2. Fertilizer should be diluted first, then fertilize with watering. Fertilize evenly. If there is too much fertilizer in one place, the plants will be burned. Before harvesting, it is generally sufficient to carry out topdressing once. (5) Timely harvesting Harvesting at the right time is the key to the high yield and quality of water spinach. It is generally harvested when the spinach grows to about 25 to 35 centimeters. If it is not harvested in time, it will not only affect the taste of the spinach but also reduce the yield. Convolvulus is a vegetable that has been harvested many times. In general, open-air cultivation of spinach can always be harvested in mid-August. When harvesting, all the parts of the kongkong vegetables above 4-5cm above the ground should be harvested. Do not injure the root of the water spinach. After harvesting, spinach should be bundled in about 1kg per batch. Because the water spinach is a crop that is harvested many times, it should be timely combined with watering for topdressing after harvesting. Top dressing should be carried out in accordance with the standard of 400-500kg of organic fertilizer per 667m2. (6) Diseases and Insect Pests The main diseases of the water spinach are less, and the insect pests are mainly whitefly. It can be sprayed and treated with pestonitrile 1000-1500 times. It should be sprayed once when the water spinach grows to about 8-10cm. Dried Seafood,Dried Squid,Dried Scallops,Dried Shrimp Shandong Haizhibao Ocean Science and Technology Co.,Ltd. , https://www.haizhibaoseafood.com