A New method for High yield of Chinese Yam

1. Shallow topdressing and skillful watering: when fertilizing, shallow soil layer should be applied for root absorption of yam, shallow topdressing or less topdressing can ensure high yield of Chinese yam, Chinese yam should not be too dry for fear of waterlogging, if too drought will seriously affect the expansion of yam, spraying new high-fat film reasonably matches the distribution of water and fertilizer. 2, the frame should be firm: set up the frame in time after emergence, the height of the frame is about 2 meters, the front is "human" shape, the side is oblique to cross, every 7 to 8 meters with thick bamboo pole or wooden stick reinforcement, in short, must be firmly built to prevent tilting. 3. prevention of diseases and insect pests: the prevention and control of diseases and insect pests should keep up with, the incidence of diseases and insect pests is more serious in the continuous cropping land, and the incidence of the land planted in the first year is lighter. After the yam vine is on the shelf, a new high-fat film is sprayed on the plant surface to improve the efficacy, prevent the infection of germs and expel insect pests. 4. Growth period: the topdressing of Chinese yam is mainly in the middle and later stage of growth, and less fertilizer is needed in the early stage. When the underground tuber enters the vigorous growth period, topdressing should be re-applied once, and the foliar spraying of the medicinal herb Root Daling can promote the transport of foliar photosynthesis products to the root system, improve the nutrient conversion rate and soil loosening ability, and ensure that there are sufficient nutrients for tuber elongation and expansion, and the content of effective matter is greatly increased to achieve the goal of a bumper harvest.