I have no idea really tbh
It helps in understanding which crop should be cultivated on a particular land.
It also helps in gaining information about how agriculture can be done in poorer soils.
It gives information about the nutrient quality of the soil.
This avoids wastage of capital on the cultivation of unsuitable crops.
It also helps in controlling pests and insects.
I've never read this but I can tell you what to look for. Symbolism in literature is using a phrase or word to represent something totally different. It can sometimes be called "hidden meaning". It is usually a meaning that doesn't meet the eye but is very important to the story the author is telling.
