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metadata.artigo.dc.title: Biochemical parameters of an Oxisol submitted to high doses of gypsum in the coffee culture
metadata.artigo.dc.creator: Naves, Andrêssa de Paula
Silva, Aline Oliveira
Barbosa, Marisângela Viana
Pinto, Flávio Araújo
Santos, Jessé Valentim dos
Saggin Junior, Orivaldo José
Guimarães, Paulo Tácito Gontijo
Carneiro, Marco Aurélio Carbone
metadata.artigo.dc.subject: Coffea arabica
Soil enzymes
metadata.artigo.dc.publisher: Universidade Federal de Lavras 2020
metadata.artigo.dc.identifier.citation: NAVES, A. de P. et al. Biochemical parameters of an Oxisol submitted to high doses of gypsum in the coffee culture. Coffee Science, Lavras, 2020.
metadata.artigo.dc.description.abstract: The objective of this study was to determine the influence of increasing doses of agricultural gypsum on the quality of the soil biochemical parameters in coffee cultivation (Coffea arabica L.) over two climatic seasons in the Brazilian Cerrado. Soil samples were collected in two seasons (dry and rainy season), at 0.00 – 0.10 m depth of an Oxisol, submitted to doses 0 (GSA); 3.5 (G3.5); 7.0 (G7.0) and 14 (G14) t ha-1 of agricultural gypsum in the coffee planting line. The biochemical parameters evaluated were: total organic carbon (TOC); microbial biomass carbon (MBC); soil basal respiration (SBR); absolute enzymatic activities [Urease, acid phosphatase, hydrolysis of fluorescein diacetate (FDA)], and enzymatic activity per unit of MBC. The significant effect (p ≤ 0.05) of gypsum doses was observed for MBC and SBR, which were higher in the treatment with G7.0 application. TOC, the enzymatic activities of Phosphatase and the FDA showed no differences between treatments. On the other hand, the specific enzymatic activities by MBC were used to describe the differences between the doses of gypsum applied, generally with greater activity in treatments G7.0 and G14. The accumulated coffee productivity was higher in G14 treatment. The results presented confirmed that the biochemical parameters of the soil are key in the evaluation of changes in soil use, and that the increase in gypsum favors activity and microbial biomass.
metadata.artigo.dc.language: en_US
Appears in Collections:DCS - Artigos publicados em periódicos

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