USING DRONES TO MONITOR CROP HEALTH, WATER STRESS, AND CROP WATER REQUIREMENTS FOR IMPROVING CROP WATER PRODUCTIVITY IN THE CONTEXT OF PRECISION AGRICULTURE IN SMALLHOLDER CROPLANDS. USING DRONES TO MONITOR CROP HEALTH, WATER STRESS, AND CROP WATER REQUIREMENTS FOR IMPROVING CROP WATER PRODUCTIVITY IN THE CONTEXT OF PRECISION AGRICULTURE IN SMALLHOLDER CROPLANDS. Posted in .