TY - JOUR AU - OLIVEIRA, JOSILENE P. DE AU - BATISTA, LUCAS F. AU - SIQUEIRA, GLÉCIO M. PY - 2008/12/15 Y2 - 2024/03/28 TI - SPATIAL VARIABILITY OF WEEDS OF AN RED LATOSOL (OXISOL) UNDER NO- TILLAGE SYSTEM. JF - Revista Brasileira de Engenharia de Biossistemas JA - Braz J Biosyst Eng VL - 2 IS - 3 SE - Regular Section DO - 10.18011/bioeng2008v2n3p273-281 UR - http://seer.tupa.unesp.br/index.php/BIOENG/article/view/86 SP - 273-281 AB - <p>The objective of this study was to analyze the spatial variability of weeds in an Red Latosol (Oxisol)under no-tillage system. Samples were taken in an area of 0.5 ha, in 50 sampling points withspacing of 5 m x 10 m. Data were analyzed by means of classical statistics and geostatistics, andspatial variability of the maps constructed by the technique of interpolation by kriging. All speciesof weeds present in the study area showed spatial variability with the exception of Ipomoea triloba(L.) and Heliotropium indicum (L.), which showed pure nugget effect. The values of range (a) showthat the spacing between samples can be extended to all species of weeds. Unable to determinespecifics areas of management in the local since the different species of weed infested areas ofdifferent area.</p> ER -