Nothing
they grow many different varieties of crops. they also grow coffee
They have nodules on the roots which has nitrogen fixing bacteria
In the nitrogen cycle.
They are all different types of crops. Wheat, oats, rice and corn are different types of cereal grasses, and soy is a legume crop.
Because there were only a few scant varieties to choose from for farmers to grow. It's different nowadays, as farmers have far more cultivars and varieties to choose from to grow in their fields.
Cereals, coarse grains, oilseeds, legumes, vegetables, fruit, nuts, fiber, and biofuel are a few crop examples.
a grain and a legume
D. J. Gilbey has written: 'Identification of weeds in cereal and legume crops' -- subject(s): Field crops, Identification, Weeds
There are three different types of varieties in wheat. I don't know what the different varieties are, i just know that there are three.
Legumes have high mulching value for crops production.
There are over 10,000 species of grass worldwide, with common types including Bermuda grass, Kentucky bluegrass, and fescue grass. Each type has unique characteristics and is suited for different climates and uses.