The secret of "the dark earth" Amazon can help to restore the woods worldwide

Approximately between 450 g BC and 950 g AD million Indians living in today's Amazonia, transformed initially poor soil with help various processes. Throughout many generations of people of the soil were enriched with charcoal from low-intensive fires for cooking and burning of waste, bones of animals, beaten pottery, compost and manure. As a result the Amazonian dark earth (ADE) or terra preta, exclusively fertile as it is rich with nutritious substances and stable organic substance, received of charcoal turns out that gives it...