…Chicken droppings have long been consumed as a self-sufficient fertilizer, but in recent years, with the development of the poultry industry and the resulting increase in mass production, they have been dried over heat, processed, and distributed as a commodity. There are two types of processed poultry droppings: dried chicken droppings, which are simply dried, and processed poultry droppings, which are mixed with sulfuric acid and dried over heat. Dried chicken droppings contain about 4% nitrogen, 4% phosphorus, and 2% potassium, as well as calcium, magnesium, manganese, etc., making them highly valuable as fertilizer. … *Some of the terminology that refers to "dried chicken manure" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…ニワトリの糞は昔から自給肥料として消費されてきたが,近年は養鶏業の発達による大量生産に伴い,火力乾燥や加工を行い,商品として流通するようになった。製法上は単に乾燥したのみの乾燥鶏糞と,硫酸を混合し火力乾燥した加工家禽糞肥料の2種類がある。乾燥鶏糞の成分は窒素4%,リン酸4%,カリウム2%程度のほか,カルシウム,マグネシウム,マンガンなどを含み,肥料としての価値は高い。… ※「乾燥鶏糞」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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