Alfalfa Meal – Organic (2.8-0.5-3.6 avg.) Popular among vegan gardeners, and hands-down the best-smelling fertilizer out there. Excellent alternative to blood meal as a nitrogen source. Gives plants a noticeable quick boost and feeds soil organisms. Apply at 800#/acre or 2–3#/100 sq ft. Popular among vegan gardeners, and hands-down the best-smelling fertilizer out there. Excellent alternative to blood meal as a nitrogen source. Gives plants a noticeable quick boost and feeds soil organisms. Apply at 800#/acre or 2–3#/100 sq ft.