with the amount and type of fertilizer to apply. Buresh says the impact on farmers' incomes could be substantial.

VOA: standard.2010.07.28

Buresh and his colleagues have come up with a set of key questions that will help farmers make that decision.

VOA: standard.2010.07.28

"So it's really quite important." Buresh has spent years researching optimal fertilizer conditions.

VOA: standard.2010.07.28