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出版Morressier, 2017
URLhttp://books.google.com.hk/books?id=4ON4zgEACAAJ&hl=&source=gbs_api
註釋Changes of physical properties of a soil reforested with Tectona grandis L. F. in the region of Urutau00ed, GOVitor Corru00eaa de Mattos Barretto1, Matheus da Silva Arau00fajo2, Josu00e9 Eduardo Dias Calixto Junior3, Carlos Leonardo Pereira Bogas1, Teresa Cristina Tarlu00e9 Pissarra4, Allan de Marcos Lapaz11Su00e3o Paulo State University (UNESP/FCAT), Dracena, Brazil. 2University of Su00e3o Paulo (USP), Piracicaba, Brazil. 3University of Brasu00edlia (UnB), Brasu00edlia, Brazil. 4Su00e3o Paulo State University (UNESP/FCAV), Jaboticabal, BrazilAbstractThe changes of soil physical properties occur in several ways, influencing the development of plants. However, is not very well known the changes of soil physical properties in populations of teak (Tectona grandis L. F.). The teak is an arboreal specie that has been cultivated in Mato Grosso, and presents potential for planting in Goiu00e1s, Maranhu00e3o, Bahia and Minas Gerais, whose purpose is to obtain wood for the sawmill industry. To this end, the aim of this study was to evaluate changes of soil physical properties of Red-Yellow Latossol reforested with teak with 4 years of age. For that, chose a population of teak with 6 hectares, 3 x 2 meters spaced, PU farm in Urutau00ed-GO (220 km from Goiu00e2nia-Goiu00e1s). It was determined the particle size, the density of the soil, macroporosity, microporosity, total porosity, resistance to root penetration and gravimetric moisture. The soil sampling was carried out in 2 depths (0-0.20 and 0.20-0.40 m), 34 simple samples being collected for each depth. It was used a complete randomized design with 34 replications. The averages were compared by the Tukey test at 5% of significance, through the SISVAR program. There have been changes in porosity, soil density and resistance to penetration in depths. The highest values of total porosity was 0.56 m3 m-3, soil density was 1.48 g cm-3 and the resistance to penetration of 3.1 MPa in 0.20-0.40 m, due to the adoption of minimum tillage system in planting, no soil plowing and maintenance of litter on the surface.