土壤缺磷是制约我国农业生产发展的重要因素之一,我国南方红壤地区,由于土壤Ｆｅ、Ａｌ含量高,普通磷肥极易被固定,缺磷现象尤为严重我们利用有机和无机改性材料活化磷矿粉,在实验室条件下,研制出3种新型改性磷肥,在固磷性极强和有效磷含量极低的红壤上表现了较好的肥效,改性磷 Soil phosphorus deficiency is one of the important factors restricting the development of agricultural production in our country. Due to the high content of Fe and Al in the red soils of our country, the common phosphate fertilizer can be easily fixed and the phosphorus deficiency is especially serious. We use organic and inorganic modified materials to activate phosphorus Under the laboratory conditions, three kinds of new modified phosphate fertilizers were developed, which showed better fertilizer effect on red soil with extremely strong phosphorus fixation and very low effective phosphorus.