Physico‑chemical attributes of a Cambisol under pasture managed with annual burns after sugarcane vinasse application

International Journal of Recycling Organic Waste in Agriculture

مقاله 9، دوره 7، شماره 1، خرداد 2018، صفحه 75-81   

شناسه دیجیتال (DOI): 10.1007/s40093-018-0193-y

نویسندگان

Thadeu Rodrigues de Melo¹؛ Rogério Resende Martins Ferreira²؛ Rogério Resende Martins Ferreira²؛ João Tavares Filho¹؛ Deisi Navroski¹؛ Clarissa Tieme Matsuda Feltran¹؛ João Tavares Filho¹

¹Universidade Estadual de Londrina [State University of Londrina] (UEL)

²Empresa Brasileira de Pesquisa Agropecuária [Brazilian Agricultural Research Corporation], EMBRAPA

چکیده

Purpose Sugarcane vinasse is generated in large amounts and can be utilized to improve soil attributes, especially in areas degraded by burns. The aim of the present study was to evaluate the efects of sugarcane vinasse on physico-chemical attributes of a Cambisol managed via annual burns. Methods Soil samples were collected from an annually burned area under pasture and used in an experiment in pots to evaluate the efects of dosages of vinasse (0, 18.8, 37.5, 56.3, 75.0, 112.5, and 150.0 m3  ha−1) on water-dispersible clay, pHH2O, organic matter, K+, Ca2+ + Mg2+, and K+/(Ca2+ + Mg2+). Results The results showed that vinasse application reduces water-dispersible clay, does not alter pHH2O, and increases organic matter, K+, Ca2+ + Mg2+, and K+/(Ca2+ + Mg2+). The water-dispersible clay was reduced by the formation of bonds with organic matter, which overlapped the repulsive forces intensifed by the increment of K+/(Ca2+ + Mg2+). The estimated vinasse dosage that provided the minimum water-dispersible clay (69 g kg−1) was 110 m3  ha−1. Conclusions Vinasse can be applied to improve the physico-chemical attributes of soils degraded by annual burns.

کلیدواژه‌ها

Organic fertilization ؛ Soil focculation ؛ Sustainability ؛ Soil restoration