How to apply Chinese yam fertilizer?

Planting yam is ready to fertilize, but how to fertilize yam? Because the yam is rich in nutrition and has the function of nourishing and strengthening health care, it is deeply loved by consumers. The market price is higher, and the economic benefits of producers are very good. At the same time, Chinese yam can also be deeply processed, and it is also one of China's traditional export agricultural products. There are not many varieties of yam in Huang-Huai area, mainly flower yam, Jiuju yellow and crystal yam. The highest yield is crystal yam, with a yield of about 5000 kilograms per mu and a weight of 8 kilograms per plant. The land selection and planting Chinese yam should choose the land with high topography, low groundwater level, convenient drainage and irrigation, deep, fertile and loose sandy loam or loam. Select strong, sparse lenticels, glossy, disease-free, pest-free yam as seed blocks. A general round one is best. Cut off the tuber according to the length of 8 to 10 cm, with no less than 250 grams in each section. The longitudinal cutting method should be adopted when cutting blocks. In order to prevent the section from rotting, the medicine should be dipped in the section to prevent bacteria from invading and rotting. Dilute the mancozeb with 80% mancozeb into a paste and dip the cut yam into the medicine to prevent decay. Urge the bud to spread a Reed mat in the courtyard where the wind and the sun is rising, and put the yam jokes flat on it and let the sun expose it. Cover it with a straw mat at night, keep it warm, and expose it to the sun during the day. Generally, it can be planted after 15-20 days. For every 1000 kg of yam produced by fertilization, 4.32kg of pure nitrogen, 1.07kg of phosphorus pentoxide and 5.38kg of potassium oxide were needed. The proportion of nitrogen, phosphorus and potassium required is 4 ∶ 1 ∶ 5, and the amount and kinds of fertilizer required in different growth periods are different. Base fertilizer: according to the fertilizer law of local yam farmers, 3 to 5 square of high-quality mature farm manure are applied per mu, and the rotten chicken manure is the best, bean cake 100kg, Mexin or diammonium phosphate 75kg 100kg, agricultural potassium sulfate 100kg, urea 25kg, biological bacterial fertilizer 3 to 5 bags (40 kg each). Topdressing: the seedling stage is mainly nitrogen fertilizer, about 15 kg per mu. In the peak growth period of branches and leaves (early July), 25kg / mu of high-nitrogen and high-potassium compound fertilizer is applied, and 0.3% concentration of potassium dihydrogen phosphate can be sprayed for 2 times. In the first ten days of August, 25kg of high nitrogen and high potassium compound fertilizer was applied per mu. Click to see more yam planting techniques click to see more vegetable planting techniques