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Artigo Produção Nacional Revisado por pares

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Soil physical quality under long-term integrated agricultural production systems

2018; Elsevier BV; Volume: 186; Linguagem: Inglês

10.1016/j.still.2018.08.016

1879-3444

Daniel Malheiro do Nascimento, Karina Maria Vieira Cavalieri-Polizeli, Alcione Herminia da Silva, Nerilde Favaretto, L. M. Parron,

Rural Development and Agriculture

Integrated farming systems lead to high quality and quantity of food as well as better environmental quality, but these systems can provide some disadvantages, such as the possibility of occurrence of soil compaction, which can be detected through soil physical quality indicators. The aim of this work was to analyze the effect of long term Integrated Crop–Livestock (ICL) and Integrated Crop–Livestock–Forestry (ICLF) systems on soil physical quality. The experiment (randomized complete block design) was carried out from 2006 until november of 2012 at IAPAR research farm, Ponta Grossa, Paraná state, under soils with sandy loam texture. Soil depths of 0.00–0.05, 0.05–0.10, 0.10–0.20, and 0.20–0.30 m were sampled in November 2012 to analyze soil physical quality. The soil relative density, structural stability index, S index, relative field capacity, plant-available water capacity, bulk density alert value, and least limiting water range were evaluated. Both integrated systems (ICL and ICLF) provided adequate soil physical quality; nevertheless, overall, the ICL system resulted in better quality. Our results showed that the forestry component in the ICLF system negatively affected the soil physical quality mainly at the 0.05–0.10 and 0.20–0.30 m layers.