Before the emergence of yam, the yam is not watered before it is released, so as not to reduce the soil temperature and cause rotten seeds. If water accumulates, it should be removed in time, and combined with ditching and soil cultivation. After emergence, first chase 1 time of clear manure (1000 kg per mu) or 2030 kg of urea. When the tubers enter the expansion period (late August), chase the second fertilizer, and apply 50 kg of compound fertilizer combined with the use of plant electronic fertilizer. Strong fertilizer effect. When the first fertilization was carried out, the seedlings were combined, and 1 to 2 strong seedlings were left per plant, and the rest were removed. The main diseases are anthracnose and blight. Use 65% mancozeb or 50% carbendazim 800 times solution to control the spraying of 500 times solution of New High Lipid Membrane, and spray it once every 7-10 days in the early stage of the disease, for 2-3 times. The main pests are cockroaches and tigers. Use 50% gram of phosphorus or 50% of enemy line before planting, and apply 6 kg of pharmacy per acre. Use 3% of the 6 kg of fine soil to apply to the pond to prevent nematodes. X Ray Front Lead Rubber Jacket,Xray Double Sides Lead Clothing,Half Sleeve Lead Clothing,Long Sleeve Lead Clothes Longkou Kangxie Medical Instrument Co., Ltd , https://www.kangxiemedical.com
High yield field management of yam is very important