Publicação: Integrated systems of agricultural production in the north of Mato Grosso and the physical properties of soil
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Univ Federal Mato Grosso
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The areas with integrated agricultural production systems have increased considerably in recent years in Brazil. Thus, soil physical quality studies are essential in guiding the best management to be adopted, avoiding damages with the soil physical degradation. The aim of this study was to evaluate the physical properties of a Red Yellow Latosol under integrated production systems in the north of Mato Grosso after four years of implementation. The experiment was installed in January 2009 at the Technological Reference Unit (URT) of EMBRAPA Agrossilvipastoril at Fazenda Gamada, municipality of Nova Canaa do Norte, MT. The treatments consisted of five systems of crop-livestock-forestry integration (ICLF) in the following forestry arrangements: Eucalyptus in single line, double line and triple line (Eucalyptus I, II and III respectively), Teak in triple line and Pau-balsa in triple line. Soil samples with preserved structure were collected in the transverse direction of the forest species, to evaluate bulk density, soil resistance to penetration and soil porosity. There was higher bulk density in the ICLF systems with Teak and Pau-balsa. The penetration resistance of the soil was higher in the system with Teak in triple line. The trees density as well the forestry arrangements influence the soil physical properties. The integrated production systems with forest component Eucalyptus provided less physical degradation of the soil after four years of implantation. Regardless of the analyzed systems, the values of the physical properties in general indicated that the agricultural use of the soil associated with the history of the experimental area caused an increase of the restrictive effect to the root development of the cultures.
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bulk density, eucalyptus, soil physics, ICLF, Ochroma pyramidale, Tectona grandis
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Inglês
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Nativa. Sinop: Univ Federal Mato Grosso, v. 6, p. 722-728, 2018.
