brown humic acid

基本解释

In this paper, the resources of brown coal produced nitro-humic acid from different regions in Yunnan province were investigated.
以云南各产地褐煤为原料制备硝基腐植酸，对褐煤水分、灰分、总腐植酸、游离腐植酸进行了分析和评价。
We obtained humic acid sodium which moulded lignite semi-coke used in ferroalloy plan from brown coal riching in Yunnan province.
利用云南丰富的褐煤资源制备了腐植酸钠作黏结剂，并用来成型铁合金厂应用的褐煤半焦。
Laboratory incubation experiments in constant temperature were implemented to study influence of humic-acid and fulvic-acid on fixation and release of potassium in cultivated brown soil.
通过室内等温培养试验，研究了施用富里酸和胡敏酸对耕地棕壤钾素释放和固定作用的影响。