1、 Can we do it at the same time

If the root is fertilized when raising flowers, it can be combined with the medicine, because the root will absorb some nutrients, such as water-soluble fertilizer, which can be directly applied to the root, and the root will absorb itself. Spraying is to spray on the leaves, so the two do not conflict and can play their respective roles. However, it is not recommended to do it at the same time, because they are all chemical agents. I don't know whether they will conflict with each other or produce adverse consequences. Especially for fertilization outside the root, it's best not to use them on the leaves together to prevent affecting the growth of the plant itself

2、 Correct method

In order to give full play to its role, the two aspects can be separated for a few days. If the occurrence of diseases and pests is serious, pesticides can be applied first, the diseases and pests can be removed first, and then fertilizer can be applied after the effect volatilizes for a few days, which can also make the fertilizer effect fully play. There are also some flowers that are suitable for both at the same time. For example, roses can be carried out at the same time. Leaf fertilizer is added while spraying medicine. However, it should be noted that bactericidal copper pesticide and calcium containing leaf fertilizer cannot be mixed