腐殖酸铵(以下简称腐铵)是一种黑色粉末状的高分子有机—无机复合肥料,原料分布广泛,储量丰富,而且生产工艺简单。兄弟省市试验表明,这种肥料有多方面的功能,对作物有良好的增产效果,是一种具有广阔发展前途的好肥料。但多年来,这种肥料使用比较普遍的主要是北方数省,并且大多是在盐碱地上施用;而在南方酸性土壤上的使用 Ammonium huminate (hereinafter referred to as the ammonium chloride) is a kind of black powdery organic-inorganic compound fertilizer with wide distribution, abundant reserves and simple production process. Brothers provinces and cities test shows that this fertilizer has many functions, the crop has a good yield-increasing effect, is a promising broad-based fertilizer. However, over the years, this fertilizer has been used more commonly in northern provinces and mostly in saline soils, whereas in southern acid soils