castor bean plantation in northeastern brazil. this plant is a viable option in the northeastern semi-arid region

environmental northeastern agribusiness agricultural agroindustry manufacture agriculture environment plantation industrial vegetation biodiesel brazilian botanical medicinal purgative semiarid communis economic farmland medicine tropical biofuel closeup economy ricinus vegetal biology farming foliage growing natural oilseed organic castor brazil viable option region income botany energy garden herbal nature plant rural field flora fresh green toxic bean crop farm leaf oil