Soil quality indicators in irrigated sugarcane crops

Authors

  • Letícia Silva Almeida Universidade Federal de Minas Gerais, Instituto de Ciências Agrárias, Campus Regional de Montes Claros, Avenida Universitária, no 1.000, Bairro Universitário, CEP 39404-547 Montes Claros, MG
  • Verônica Aparecida Santos Ferreira Universidade Federal de Minas Gerais, Instituto de Ciências Agrárias, Campus Regional de Montes Claros, Avenida Universitária, no 1.000, Bairro Universitário, CEP 39404-547 Montes Claros, MG
  • Luiz Arnaldo Fernandes Universidade Federal de Minas Gerais, Instituto de Ciências Agrárias, Campus Regional de Montes Claros, Avenida Universitária, no 1.000, Bairro Universitário, CEP 39404-547 Montes Claros, MG
  • Leidivan Almeida Frazão Universidade Federal de Minas Gerais, Instituto de Ciências Agrárias, Campus Regional de Montes Claros, Avenida Universitária, no 1.000, Bairro Universitário, CEP 39404-547 Montes Claros, MG
  • Agda Loureiro Gonçalves Oliveira Universidade Federal de Minas Gerais, Instituto de Ciências Agrárias, Campus Regional de Montes Claros, Avenida Universitária, no 1.000, Bairro Universitário, CEP 39404-547 Montes Claros, MG
  • Regynaldo Arruda Sampaio Universidade Federal de Minas Gerais, Instituto de Ciências Agrárias, Campus Regional de Montes Claros, Avenida Universitária, no 1.000, Bairro Universitário, CEP 39404-547 Montes Claros, MG

DOI:

https://doi.org/10.1590/S1678-3921.pab2016.v51.22416

Keywords:

bioindicators, microbial biomass, organic matter dynamics, microbial metabolic quotient, microbial quotient, soil basal respiration.

Abstract

The objective of this work was to evaluate the effects of land use change on the dynamics of organic carbon, on total nitrogen, and on microbial soil properties over time, in irrigated sugarcane crops. The systems were evaluated in four areas with sugarcane in a chronosequence of 5, 7, 8, and 9 years of cultivation, besides a native vegetation area. The soil samples were analyzed for C and N stocks, and for the microbiological properties of the soil. The system with 8 years showed the highest C values of microbial biomass and basal respiration, and the lowest ones for microbial metabolic quotient (qCO2). The highest values of C and N stocks were observed in the native vegetation area. These results are associated with the constant deposition of litter and intense biological activity in the native vegetation. The deposition of sugarcane straw on the soil surface, over time, improved soil quality and kept the soil stocks of C and N similar to those observed in the native vegetation area.

Author Biography

Letícia Silva Almeida, Universidade Federal de Minas Gerais, Instituto de Ciências Agrárias, Campus Regional de Montes Claros, Avenida Universitária, no 1.000, Bairro Universitário, CEP 39404-547 Montes Claros, MG

Engenheira Ambiental e mestre em produção vegetal

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Published

2016-10-17

How to Cite

Almeida, L. S., Ferreira, V. A. S., Fernandes, L. A., Frazão, L. A., Oliveira, A. L. G., & Sampaio, R. A. (2016). Soil quality indicators in irrigated sugarcane crops. Pesquisa Agropecuaria Brasileira, 51(9), 1539–1547. https://doi.org/10.1590/S1678-3921.pab2016.v51.22416

Issue

v.51, n.9, set. 2016: Número Temático O solo como fator de integração entre os componentes ambientais e a produção agropecuária

Section

SOLO E PRODUÇÃO (TEMÁTICO)