Plants love BLT sandwiches. (Bacon lettuce tomato)
When I plant gets fed a BLT, but your not feeding properly, I.e- under watering.
You feed your plant and not see run off, they get a lot of bacon, a lil lettuce and a lil to no tomato.
They seem dry again, so you feed them again.
Again, they get a lot of bacon, a lil lettuce and zero to no tomato, plus the left over scraps from the BLT from before, giving improper feeding, and can lead to a over feeding of one nutrient or the other, as well as causing nutrient deficiency.
When you feed a plant with proper watering techniques, you feed a BLT, putting water in the top of the pot, letting it drain, then pouring more water in, let it drain so on and so forth until you see run off.
Your feeding the plant the entire Bacon, lettuce, and tomato. This technique ensures you that the roots are getting fed the entire BLT, as well as ensuring you that the water is pulling oxygen down to the roots along with the nutrients, because oxygen is just as important to the roots as the nutrients are.