粉煤灰应用于农业,在我国已有20多年历史。主要用于:①作粘土和酸、碱土改良剂,②填充洼地、深沟、废坑,然后覆土造田,③作冬小麦或水稻育秧的保温材料,④作堆肥的掺合料和垫图,⑤作硅钙肥和磁化粉煤灰肥,⑥用于种植蔬菜,⑦用于治疗果树黄叶病。但粉煤灰至今未得到迅速推 Fly ash used in agriculture, in our country more than 20 years of history. Mainly used for: ① for clay and acid, alkaline earth improvers, ② fill depression, deep ditch, waste pit, and then cover the fields, ③ winter wheat or rice seedling insulation materials, ④ composting admixture and mat map, ⑤ Calcium silicate fertilizer and magnetized fly ash fertilizer, ⑥ for planting vegetables, ⑦ for the treatment of yellow leaves of fruit trees. However, fly ash has not been promptly pushed so far