Key points of cultivation and Management of High quality and High yield of Ipomoea aquatica

Water spinach, also known as water spinach, Tongcai or rattan vegetables, is a fast-growing green leafy vegetable introduced more in recent years. The technical points are as follows: 1. Sowing: direct seeding in the open field, seedling transplanting can be carried out, and the sowing period is generally in the middle and late April. Direct seeding on the ground can be done by drilling or dibbling, row spacing 30~35 cm, hole spacing 15~20 cm, dibbling 3~4 seeds per hole, watering immediately after sowing, seedling can emerge in about 7 days; it can also be sown densely, and plucked and harvested when the seedling height is 17~20 cm. After sowing, cover plastic film to warm up and keep moisture, and remove the film after seedlings emerge. In addition, can also be picked during the growth of about 15 cm of the top shoot cutting propagation, as long as the cutting field soil moisture appropriate, cuttings will soon grow adventitious roots, and out of new shoots. 2. Planting and management: water spinach on the soil conditions are not strict, should choose low-lying, moist soil and fertile clay loam cultivation. Early should be timely tillage loose soil, improve ground temperature. In summer, the temperature is high, the plant grows fast, and the fertilizer and water requirements are large. It is necessary to water frequently, irrigate with large water (dry air, insufficient soil moisture, easy to lead to increased fiber of spinach, affecting yield and quality), and combine watering for topdressing. Autumn temperature turns cool, to timely intertillage weeding and topdressing, and pay attention to the prevention and control of red spiders and other pests. Water spinach harvest period is long, generally after each harvest, should combine watering mu ammonium sulfate 10 kg. 3. Harvest: timely harvest is the key to high yield and high quality of water spinach. In production, it can be harvested when the seedling height is about 20~30 cm. During the first and second harvest, 2~3 nodes should be reserved at the base of the stem to facilitate the germination of new buds after harvest, promote lateral branches and strive for high yield. After harvesting 3~4 times, the plant should be re-harvested once, that is, only 1~2 nodes should be left at the base of the stem to prevent excessive lateral branches and slow growth.