of rain puts about 600 gallons of water atop a square foot house! That's a lot of free water. These cisterns collect rainwater from a nearby roof and when the tanks are full water is dispersed through a gravity-fed drip system that irrigates crops.
** Has the Average NPK analysis of each source. Organic fertilizers and organic soil amendments come from natural sources--plants, animals, and rocks. An organic fertilizer is a natural soil amendment th