Medium fertility level, 1 mu target yield 2000~2500 kg. The fertilizing amount per mu for the whole growing period of broccoli is 2500-3000 kg for farmyard fertilizers (350 to 400 kg for commercial organic fertilizers), 20 to 23 kg for nitrogen fertilizers (N), 6 to 8 kg for phosphate fertilizers (diphosphorus pentoxide), and potassium (potassium oxide) ) 11~14 kg. Nitrogen and potassium fertilizers were applied to the sub-basal fertilizer and the top dressing was applied 3 times. The ratio of fertilizer application was 2:3:3:2. Phosphorus fertilizer was used as base fertilizer. The basal organic manure was applied as a base fertilizer in one go. In addition, 6 kg of urea, 13-17 kg of ammonium phosphate, 7-8 kg of potassium sulfate, and 0.5 kg of borax were applied per acre. The topdressing stage applies 10~11 kg of urea and 5~6 kg of potassium sulfate per mu, the formation of flower bulbs applies 13~15 kg of urea, 6~8 kg of potassium sulfate in the initial stage, and the formation of medium-term 10~11 kg of urea in the middle of the bulb. 5-6 kg. Boron-free topdressing can be used to spray 0.1% to 0.2% borax solution in the early and middle stages of flowerball formation; magnesium deficiency can be sprayed 0.2% to 0.4% magnesium sulfate solution 1~ 2 times. This classification is mainly to provide electric children tilt wheelchair, height adjustable armrest, can meet the needs of children of different ages, it has Power Pediatric Wheelchair,Reclining High Back,Lithium Battery, Rubber Foam Drive Wheel Power Pediatric Wheelchair,Reclining High Back,Lithium Battery, Rubber Foam Drive Wheel jinan Fangqi Sunshine education consulting CO.,LTD. , https://www.fzrehabmarket.com