Helpful Bacteria: Tree roots collect special bacteria that works with the soil to make &quot;nitrogen&quot;, a very important part of the recipe for tree and plant food, Work with students to create a recipe for healthy trees and gardens.
(Tree roots; collect; special bacteria that works with the soil to make &quot;nitrogen&quot;, a very important part of the recipe for tree and plant food, Work with students) (special bacteria; works; with the soil; to make &quot)
Tree roots special bacteria
collect works
special bacteria that works with the soil to make &quot;nitrogen&quot;, a very important part of the recipe for tree and plant food, Work with students
with the soil to make &quot