depends what are these fertile crops you speek of
Farming needs fertile soils, to get their crops to grow.
they were able to grow two or three crops per year because of the fertile land the nile has provided
Fertile
Here is what i know some of it i forget, it provided fertile crops.
You should rotate your crops. it helps it be fertile.
Crops grew well in Mesopotamia because it was located near the fertile crescent which had rich fertile land
Fertile soil enables you to grow good and plentiful crops. This was good for the people eating the food produced.
The soil in the fertile crescent is so good for crops because they made a system called "irrigation" which simply takes water from the river and waters the crops.
it helps the crops grow
A fertile meadow is a little better quality then the non fertile meadow but the fertile meadow is better to grow crops on.
Fertile Land
A long and thin piece of land where crops grow easily is often referred to as a "fertile ribbon."