国内外的许多研究和田间试验表明:可溶性腐植酸盐对植物生长有刺激作用,但多数试验所用的腐植酸钠其组成多系黑,棕腐植酸钠盐、黄腐植酸较少,但不同原料提取的腐植酸活性如何?同一原料提取的腐植酸的不同段分刺激作用怎样?是一个需要进一步研究的课题。为此我们以水稻秧苗为对象做 Many domestic and foreign researches and field experiments show that soluble humic acid salt can stimulate plant growth. However, most of the sodium humate used in most of the experiments consists of black and brown humic acid sodium salt, but less yellow humic acid, but different raw materials Extraction of humic acid activity? Humic acid extracted from the same raw material in different parts of the stimulating effect? ​​It is a subject that needs further study. To this end, we make rice seedlings for the object