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一、前言 腐植酸是一类天然的、组成结构复杂的脂肪一芳香族羧酸的混合物。它已广泛应用于农业、工业、医疗卫生等方面,其中腐植酸一脲络合物的开发及其在农业上的应用已引起广泛重视。 腐植酸—脲络合物(UHA)是腐植酸
First, the foreword Humic acid is a kind of natural, composed of a complex structure of aliphatic-aromatic carboxylic acid mixture. It has been widely used in agriculture, industry, health and other aspects, of which the development of humic acid-urea complex and its application in agriculture has drawn wide attention. Humic acid-urea complex (UHA) is humic acid