It has long been understood that organic food waste can be composted for reuse as fertilizer. Now, the idea of using food waste to stimulate plant growth has taken a giant step forward through the liquefying of grocery-store leftovers by an aerobic digestion process. Researchers hope for two fold benefits from this nutrient-rich garden brew: eliminating methane-producing food waste and improving crop yield.
Which of the following, if true, could proponents of the new fertilizer appropriately cite as evidence for the latter of the two benefits?
(A) Liquefied food waste fertilizer has been proven to stimulate both root and stem growth.
(B) The lower cost of liquefied fertilizer from food waste will enable growers to pass on cost savings to consumers.
(C) Absorption of nutrients required for grain and seed production is significantly higher with liquefied fertilizers than with solid fertilizers.
(D) Studies will be undertaken to compare crop yields with liquefied food waste fertilizer, traditional fertilizers, and organic methods.
(E) Liquefied food waste fertilizer also poses fewer threats to water supplies than traditional fertilizers