Show deep rooted plants aid SU soil plants planta that root deep including J trees and some oma grasses are import tant tact agents in enriching tho the surface soil oil thia the department df agriculture has ha found the deep ranging roots draw from the deeper layers of tho the soil coil the various plant nutrients st particularly minerals mineral when th the plant diet dies and decays these thesa are returned to the soil but ar are concentrated in the top layers where shallow rooting plants planta can draw on oil them |