1.   Apply a natural fertilizer in April.

2.   Bat excrement, called guano, has become a popular natural fertilizer.

3.   The restoration aims to cut the phosphorus, a natural fertilizer, coming into the Everglades.

4.   The trend today is to leave lawn clippings on the grass as natural fertilizer.

5.   They are using natural fertilizers instead.

6.   This is done with, among other things, the use of compost and natural fertilizers.

7.   Workers have planted blueberries and other shrubs that take natural fertilizers like phosphates and nitrates from the soil.

8.   Concerns about pesticides leaching into drinking water have opened a debate over organic farming techniques, which instead of chemicals use natural fertilizers and biological pest controls.

9.   For example, rice paddies are dried in the fall and wheat seeds are sown on the surface with natural fertilizers.

10.   Now green sprouts are showing, surrounded by natural fertilizer, and eventually the clover will serve as food for the livestock.