Đánh giá cây đỗ quyên. Cắt từng cành trong khoảng 30 cm tính từ mặt đất. Bón phân cho cây.

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
You probably don't need to do a drastic pruning unless you have a Southern Indian azalea that has gotten quite large. If your bush has started to obscure windows and take up room you'd like to use for other plantings, you can trim it back drastically without causing long-term harm. Decide how much you want to trim back your azalea, and have a shape in mind when you start making cuts. You can safely cut it back this much without worrying that the shrub will die. Use loppers or a hand saw if neces