Effects of Burning on Chemical Attributes And Soil Organic Matter In Cerrado Areas

Abstract

The practice of burning for soil management is common due to its low cost and simplicity, allowing immediate soil reuse. Despite its benefits, such as stimulating pasture regrowth and pest control, there are negative effects, such as soil degradation and reduced productivity in the long term. The technique is controversial, balancing tradition and sustainability, requiring effective alternatives without compromising environmental health. Research indicates both improvements in fertility and damage to soil properties, indicating the need for responsible use. This study evaluated the immediate effect of fire on the chemical attributes of pasture soil, comparing it with a soil of adjacent native vegetation. Conducted at Chácara Vitória, in Monte do Carmo - TO, the experiment Cerrado. analyzed two areas: one of virgin cerrado and another of pasture that had been burned annually for over twenty years. Laboratory analysis showed an increase in K, S, Mn, Zn, P-meh, Mg, Fe, Cu and Ca, and a decrease in Al, B, H+Al. The reviewed literature presents diverse results due to several variables. It is concluded that burning significantly impacts the chemical composition of the soil and should be carefully evaluated considering its long-term implications.