…Nitrogen is an important element for plants, contained in proteins, nucleic acids, amino acids, etc., and its deficiency significantly inhibits plant growth. Nitrogen compounds widely used as fertilizers include ammonium salts, nitrates, urea, and calcium nitrate. In addition, there are slow-release synthetic organic nitrogen fertilizers such as ureaform, isobutylidene diurea, crotonylidene diurea, and guanylurea, which are derivatives of urea and aldehydes. In addition, natural organic fertilizers made from animal and vegetable matter, such as oil cake and fish manure, also contain nitrogen mainly in the form of proteins and amino acids, and can be used as nitrogen fertilizers. … *Some of the terminology explanations that mention "ureaform" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…窒素はタンパク質,核酸,アミノ酸などに含まれる植物の重要元素であり,その欠乏は植物の生育を顕著に抑制する。肥料として広く用いられている窒素化合物としてはアンモニウム塩類,硝酸塩類,尿素,石灰窒素であり,そのほかに尿素とアルデヒド類との誘導化合物のウレアホルム,イソブチリデンダイウレア,クロトニリデンダイウレア,グアニル尿素などの緩効性合成有機質窒素肥料もある。また,油かすや魚肥など動植物質の天然有機質肥料も主としてタンパク質やアミノ酸の形で窒素を含んでおり,窒素肥料となる。… ※「ウレアホルム」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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