chemical properties in entisol under pasture grass marandu fertilizer of liquid waste of bovine slaughter
atributos químicos de um neossolo quartzarênico sob capimmarandu adubado com resíduo líquido de frigorífico

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ID: 195204
2013
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Abstract
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.

Este experimento foi realizado com o objetivo de avaliar o efeito da aplicação de resíduo líquido de frigorífico (RLF) sobre as características químicas de um Neossolo Quartzarênico Órtico típico sob pastagem de capim-Marandu. Foram aplicadas quatro doses de RLF (0; 37,5; 75; 112,5 m³ ha- 1). O delineamento experimental utilizado foi em blocos inteiramente casualizados. Foram coletadas amostras de solo nas profundidades de 0-10, 10-20, 20-30, 30-40 cm, em cinco repetições, nas quais foram analisados pH, P e K+ disponíveis, Ca2+, Mg2+ e Al3+ trocáveis, CTCpH7,0, CTCefetiva, teores de matéria orgânica e acidez potencial (H+Al) após 90 dias da aplicação do resíduo líquido. Foi calculada a saturação por bases trocáveis (V%) e por alumínio (m%). A aplicação de RLF nas doses de 75 e 112,5 m³ ha-1 reduziram o pH e os teores de Al3+ e aumentaram a V% na camada de 0-10 cm e a CTCefetiva na camada de 10-20 cm. Os teores de matéria orgânica não foram influenciados pela aplicação do RLF. Os teores de Mg2+ aumentaram na camada 30-40 cm na dose de 112,5 m³ ha-1. Os resultados evidenciam que a aplicação de 37,5 m³ ha-1 aumentou o pH e os teores de Ca2+ e K+ na profundidade de 0-10 cm e o valor da CTCpH7,0 de 0 a 30 cm. O pH, soma de bases, CTC efetiva, CTC pH 7, saturação por bases, K+, Ca2+, Mg2+ foram influenciados pela profundidade com maiores valores na camada de 0-10 cm em relação às demais, em todos os tratamentos.

Reference Key
neto2013semina:chemical Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Sabino Pereira da Silva Neto;Antonio Clementino dos Santos;José Expedito Cavalcante da Silva;Valdinéia Patrícia Dim;Aridouglas dos Santos Araújo
Journal frontiers in neuroendocrinology
Year 2013
DOI
10.5433/1679-0359.2013v34n3p1099
URL
http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/10428
Keywords
Agriculture (General) brachiaria brizantha

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