目前,德州市复混肥料种类很多,主要有三元素、多元素和全元素等十几种品牌,施肥量逐年增加,截止1999年底,复混肥用量已占化肥总用量的35%以上,并且有效养分全,氮、磷、钾比例适中,养分含量也由10%提高到35%～70%。经过多年的实践,复混肥比单质肥料平均增产粮食10%以上,增产棉花 At present, there are many kinds of compound fertilizers in Dezhou. There are more than ten brands such as three elements, multi-elements and all-elements, and the amount of fertilizer is increasing year by year. By the end of 1999, the amount of compound fertilizer has accounted for over 35% of the total amount of fertilizer, Nutrients, nitrogen, phosphorus and potassium moderate proportion of nutrient content from 10% to 35% to 70%. After years of practice, compound fertilizers produce more than 10% more grain than simple grain fertilizers, increasing cotton yield