1. Fertilizer requirement Autumn sowing celery nutrient growth during the period of high nutrient absorption, this period of nitrogen, phosphorus, potassium, magnesium, calcium absorption of the five elements of the total absorption of more than 84%. The highest amount of nitrogen was required for celery, followed by calcium and potassium, and phosphorus and magnesium were the least. The celery's requirement for boron is also very large. In the absence of boron or due to drought-induced low temperature absorption, the petiole is prone to transverse cracking, ie, stem cutting disease, which seriously affects the yield and quality. 2. Fertilization technology The fertility of celery during the whole growth period of medium fertility level is 2500-3000 kg of farmyard fertilizer (or 350-400 kg of commercial organic fertilizer), 13-16 kg of nitrogen fertilizer, 5-6 kg of phosphate fertilizer, 6-9 kg of potassium fertilizer, and nitrogen. The potassium base fertilizer and three topdressing fertilizers were applied in a ratio of 2:3:3:2. All of the phosphate fertilizers were used as base fertilizers and fertilizers and manure (or commercial organic fertilizers) were mixed and applied. Basal fertilizer: Apply 2500-3000 kg of farmyard fertilizer or 350-400 kg of commercial organic fertilizer per mu, 4-5 kg ​​of urea, 11-13 kg of diammonium phosphate, and 4-5 kg ​​of potassium sulfate. Top dressing: After easing the seedlings, Mushi urea 6-8 kg, potassium sulphate 3-4 kilograms; mushy urea 8-11 kg, potassium sulphate 3-5 kilograms in the early growth stage; vigorous growth Mushi urea 6 -8 kg, potassium sulfate 3-4 kg. Root dressing: If you find heart rot, use 0.3%-0.5% calcium nitrate or calcium chloride for foliar spray. Foliar application of boron fertilizer can avoid the occurrence of stem cracking to a certain extent, spray 0.2% borax or 40-75 kg boric acid solution per acre. Facilities can be grown with carbon dioxide gas fertilizer.
Hebei Abiding Co.Ltd, a professional food supplier, was established in 2005 in Shijiazhuang, China. We specialize ourselves in supplying Organic Tomato Paste and Organic Pasta. Conventional ones are also available to supply. We can make the private labels according to the customers' requirement. Our products have EU, NOP and JAS organic certificates. They are also Kosher certified. We have business relationships with importers and wholesalers from around the world, mainly in Europe and America. Over the years, we have earned highly recognition from clients due to our qualified service and steadily increase our market share year after year.
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The Need for Fertilizer and Fertilization Technology of Celery