QUALIDADE QUÍMICA DO SOLO SOB SISTEMAS DE INTEGRAÇÃO LAVOURA, PECUÁRIA E FLORESTA E OUTROS DIFERENTES SISTEMAS DE USO DA TERRA NO BIOMA CERRADO

Abstract

Crop, livestock and forest integration systems (ILPF) enable land use for sustainable food production and contribute to better land use, rationalization in the use of inputs and the improvement of chemical, physical and biological attributes. The objective of this study was to evaluate the chemical characteristics in a Dystrophic Red Oxisol under a system of ILPF and compare with different adjacent areas in the southern region of Goiás. In January 2018 the ILPF system was implemented, with the forestry component being the eucalyptus clone AEC 2034 (Eucalyptus camaldulensis x Eucalyptus grandis) x Eucalyptus urophylla in arrangement of 10 meters of spacing between rows and 4 meters of spacing between plants. The area experimental was composed of five different systems (pasture, corn monoculture and eucalyptus, ILPF and native forest area). Soil fertility was assessed, and in the ILPF samples were collected at three distances from the tree line and at two depths (0- 0.10 and 0.10-0.20 m) and in the other areas random collections were carried out. The arrangement experimental was in a completely randomized design with seven treatments and four replications in a split-plot scheme. Integrated systems have improved chemical attributes of the soil, mainly in the cycling of nutrients such as phosphorus and improvement of organic matter, demonstrating a sustainable alternative.