What about phosphorus deficiency in flowers?

After phosphorus deficiency, the varieties of phosphate fertilizer can be selected according to the acidity and basicity of the soil where flowers are planted, so as to carry out targeted fertilization. Generally, calcium magnesium phosphate fertilizer and steel slag phosphate fertilizer containing calcareous should be applied in acid soil or medium lacking phosphorus, while calcium superphosphate and other fertilizers should be applied in neutral or calcareous soil.