Chemical Attributes of a Dystrophic Red Latosol of Brazilian Cerrado After Poultry Litter Application Associated to a Urea Inhibitor

Joiran Luiz Magalhães,Antonio Carlos Saraiva Da Costa,Marcos Vinicius Pereira Vieira,Elcio Barbosa De Oliveira,Daniela Borges Do Couto Magalhães,June Faria Scherrer Menezes,Arthur Almeida Rodrigues

doi:10.5539/jas.v11n3p208

Joiran Luiz Magalhães, Antonio Carlos Saraiva Da Costa + Show 5 more

Open Access

https://doi.org/10.5539/jas.v11n3p208

Copy DOI

Abstract

Poultry waste recycling is now a globally practice consolidated in agriculture. However, the proper disposal of poultry waste should enable to reduce N losses and to decrease pollution potential from the high concentrations of poultry litter applied to soil. In this context, the aim of the present study was to evaluate poultry litter doses and the effect of an urease inhibitor on the chemical attributes of a dystrophic Red Latosol. Two experiments were carried out, one in a greenhouse and another in a eucalyptus forest area, both applying completely randomized design with a 2 &times; 6 + 1 factorial arrangement, applying two types and six doses of poultry litter (5, 10, 20, 40, 80 and 160 t ha-1) plus the controls, with four replicates, total of 52 pots. The application of poultry litter doses altered soil chemical attributes, except for potential acidity. Soil pH, cation exchange capacity (CEC), sum of bases (SB) and electric conductivity (EC) values and Ca, Mg, K, P, S, organic matter (OM), Mn, Zn and Cu levels increased with increasing poultry litter doses, while Fe and B contents decreased. The 40, 80 and 160 t ha-1 poultry litter doses led to contamination potential of the soil due to salinity and alkalinity, and also raised the EC of the percolate at levels limiting to plants. The NBPT (N-butyl thiophosphoric triamide) urease inhibitor exhibited no influence on soil chemical attributes.

Highlights

The use of urban, agricultural and industrial wastes as complements to chemical fertilizers in agriculture is a well-established practice (Lupton, 2017)
The analysis of the chemical attributes of the soil collected from the 0-20 cm layer (Table 1) before treatment exhibited values outside the range reported in the study carried out by Sousa and Lobato (2004)
The results demonstrate the active participation of pH and organic matter (OM) in soil cation exchange capacity (CEC), since pH, CEC and OM values increase with increasing poultry litter levels

Summary

Introduction

The use of urban, agricultural and industrial wastes as complements to chemical fertilizers in agriculture is a well-established practice (Lupton, 2017). A lack of studies in the central-western region of Brazil, in the wide area characterized as the Cerrado and in soils classified as Latosols, is observed (Gomes et al, 1994; Fontes et al, 2001). These soils present a high degree of weathering, are usually acidic, display low cation exchange capacity (CEC) that depends on soil pH and soil organic matter content, since they exhibit reduced natural fertility (Mendonça et al, 2006)

Objectives

Methods

Results

Conclusion