C1 (green wastes compost) and C4 (green wastes + food wstes + clay and limestone) are the best for soybean and Okra production on the topsoil!
Among all plants tested, Soybean present the most best growth and yields parameters on this topsoi! on one plant on compost, we have more than 90 cloves an so more than 270 grains!
Nature is the winner!
