Artículos de revistas
Multivariate Analysis Of Soil Resistance To Penetration In No-tillage [análise Multivariada Da Resistência Do Solo à Penetração Sob Plantio Direto]
Registro en:
Ciencia Rural. , v. 36, n. 4, p. 1186 - 1192, 2006.
1038478
10.1590/S0103-84782006000400022
2-s2.0-33745863003
Autor
Weirich Neto P.H.
Borghi E.
Sverzut C.B.
Mantovani E.C.
Gomide R.L.
Newes W.L.D.C.
Institución
Resumen
In order to increase agricultural production, Brazil opted for the expansion of farming areas and the intensive use of mechanization, causing serious damage to soils. At the same time, conservation practices such as no-tillage farming are also in use. Nevertheless, soil density assessments are necessary in both situations. Practical and controversial, the methodology of penetrometry is the most utilized in such assessments. The objective of this study was to identify the vertical stratification of soil resistance to penetration. Data was collected in a Typic Hapludox under no-tillage. Samples were collected in forty points of a 50 x 50m grid. Soil resistance was evaluated in three different positions in each point: plant rows, between the plant rows, and in the rows of the tractor path. Measurements were taken using a hydraulic-electronic penetrometer. Factorial analysis with orthogonal rotation, a Multivariate Analysis technique, was used to analyze soil resistance of soil layers. Four layers were identified in the plant rows, when more superficial layers had higher relative variance. Three layers were identified in the plant rows and in rows of the tractor path, points of anthropic action; in this case, deeper layers had higher relative variance. 36 4 1186 1192 (1978) ASAE R313.1, 2p. , St. Joseph, MI: Agricultural Yearbook of Standars Alakukku, L., Persistence of soil compaction due to high axle load traffic. II - Long-term effects on the properties of fine-textured and organic soils (1996) Soil Till Res, 37 (4), pp. 223-238 Balastreire, L.A., Amaral, J.R., (1994) Desenvolvimento e Construção de Um Penetrógrafo Eletrônico, 12p. , Campinas: SBEA, Paper n.94/4-281 Benghouh, A.G., Mullins, C.E., Mechanical impedance to growth root: A review of experimental techiniques and root growth (1990) Journal of Soil Science, 41, pp. 341-358. , London Camargo, O.A., Alleoni, L.R.F., (1997) Compactação Do Solo e O Desenvolvimento Das Plantas, 132p. , Piracicaba: O.A. Camargo, L.R.F. Alleoni Canarache, A., PENETR - A generalized semi-empirical model estimating soil resistance to penetration (1990) Soil Till Res, 16, pp. 51-70. , Amsterdam Castrignamó, A., 3-D spatial variability of soil strength and its change oven time in a durum wheat field in southern Italy (2002) Soil Till Res, 65, pp. 95-108. , Amsterdam Fey, E., (2000) Desempenho de Sulcadores Utilizados Em Semeadora para Plantio Direto Sob a Palha, Em Solo Argiloso Com Diferentes Teores de Água, pp. 76f. , Dissertação (Mestrado em Engenharia Agrícola) - Universidade Estadual do Oeste do Paraná Hoffmann, R., (1992) Componentes Principais e Análise Fatorial, 25p. , Piracicaba: Departamento de Economia e Sociologia Rural. Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo Série Didática n. 76 Jorge, J.A., (1983) Compactação Do Solo, Causas, Conseqüências e Maneiras de Evitar Sua Ocorrência, 23p. , Campinas: Instituto Agronômico de Campinas Circular Técnica 22 Koolen, A.J., Kuipers, H., (1983) Agricultural Soil Mechanics, 242p. , Germany: Springer-Verlag Lanças, K.P., Santos, C.A., Penetrômetro hidráulicoeletrônico equipado com DGPS para avaliação da compactação do solo (1998) Ingeniería Rural Y Mecanización Agraria en Ámbito Latinoamericano, 612p. , BALBUENA, R.H. et al. La Plata: UNLP Misra, R.K., Maximum axial and radial growth pressure of plant roots (1986) Plant and Soil, 98, pp. 315-326. , Dordrecht Morrison, D.E., (1976) Multivariate Statistical Methods, 338p. , New York: McGrw-Hill Primavesi, A., (1986) Manejo Ecológico Do Solo. A Agricultura Em Regiões Tropicais. 9.ed., 549p. , São Paulo: Livraria Nobel Sene, M., Relationships of soil texture and structure to corn yield response to subsoiling (1985) Soil Sci Am J, 49, pp. 422-427. , Madison Silva, M.L.L., Melhoramento eletrônico e hidráulico de um penetrógrafo para aplicação em laboratório e campo (1998) Anais..., 4, pp. 409-411. , CONGRESSO BRASILEIRO DE ENGENHARIA AGRÍCOLA, 27., 1998, Poços de Caldas Lavras: UFLA/SBEA Sirjacobs, D., On line soil mechanical resistance mapping and correlation with soil physical properties for precision agriculture (2002) Soil Till Res, 64, pp. 231-242. , Amsterdam Stelluti, M., Multivariate approach to evaluate the penetrometer resistance in different tillage systens (1998) Soil Till Res, 46, pp. 145-151. , Amsterdam Whalley, W.R., Use of effective stress to predict the penetrometer resistance of unsaturated agricultural soil (2005) Soil Till Res, 84, pp. 18-24. , Amsterdam