Chemical properties in Entisol under pasture grass marandu fertilizer of liquid waste of bovine slaughter

• Autor(a) principal: Silva Neto, Sabino Pereira da
• Data de Publicação: 2013
• Outros Autores: Santos, Antonio Clementino dos, Silva, José Expedito Cavalcante da, Dim, Valdinéia Patrícia, Araújo, Aridouglas dos Santos
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Semina. Ciências Agrárias (Online)
• Texto Completo: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/10428
• topic: Organic fertilization; Brachiaria brizantha; Effluent industry meat; Soil chemistry.; Adubação orgânica; Brachiaria brizantha; Efluente agroindustrial; Química do solo.; 5. Ciências Agrárias

This study was conducted to evaluate the effect of liquid waste of bovine slaughter (RLF) on the chemical characteristics of a Entisol under pasture grass Marandu. We applied four levels of RLF (0, 37.5, 75, 112.5 m³ ha-1). The experimental design was randomized blocks. The soil samples were collected at 0-10, 10-20, 20-30, 30-40 cm, deep five replicates, which were analyzed in pH, available P and K+, Ca2+, Mg2+ and Al3+, CTCpH7,0, CTCeffective, organic matter content and potential acidity (H+ Al3+). We calculated the saturation of exchangeable bases (V%) and aluminum (m%). The applications of RLF in doses of 75 and 112.5 m³ ha-1 reduced the pH and level of Al3+. We observed increased of the value the V% at 0-10 cm and CTCeffective in 10-20 cm. The organic matter content had no significant increases for the implementation of RLF. The Mg2+ increased in the 30-40 cm layer at 112.5 m³ ha-1. The results suggest that application of 37.5 m³ ha-1 increases the pH and Ca2+ and K+ at a depth of 0-10 cm and the value of CTCpH7,0 to 30 cm. The pH, total bases, CTC, CTCpH 7,0 , saturation on base, K+, Ca2+, Mg2+ were influenced by the depth with higher values in the 0-10 cm depth compared with other in all the treatments.