SPATIAL ESTIMATION OF FOLIAR PHOSPHORUS IN DIFFERENT SPECIES OF THE GENUS... 1439

Information underlying analyses of coffee fertilization systems should consider both the soil and the nutritional status of plants. This study investigated the spatial relationship between phosphorus (P) levels in coffee plant tissues and soil chemical and physical properties. The study was performed using two arabica and one canephora coffee variety. Sampling grids were established in the areas, and the points georeferenced. The assessed properties of the soil were levels of available phosphorus (P-Mehlich), remaining phosphorus (P-rem) and particle size, and of the plant tissue, phosphorus levels (foliar P). The data were subjected to descriptive statistical analysis, correlation analysis, cluster analysis, and probability tests. Geostatistical and trend analyses were only performed for pairs of variables with significant linear correlation. The spatial variability for foliar P content was high for the variety Catuai and medium for the other evaluated plants. Unlike P-Mehlich, the variability in P-rem of the soil indicated the nutritional status of this nutrient in the plant.

[1]  Samuel de Assis Silva,et al.  Variabilidade espacial de atributos químicos de um Latossolo Vermelho-Amarelo cultivado em plantio direto , 2013 .

[2]  J. S. S. Lima,et al.  Multivariate analysis and geostatistics of the fertility of a humic rhodic hapludox under coffee cultivation , 2012 .

[3]  Samuel de Assis Silva,et al.  Cokrigagem na estimativa dos teores de Ca e Mg em um Latossolo Vermelho distroférrico , 2011 .

[4]  Xin-ping Chen,et al.  Phosphorus Dynamics: From Soil to Plant1 , 2011, Plant Physiology.

[5]  Edison Martins Paulo,et al.  Yield performance and leaf nutrient levels of coffee cultivars under different plant densities , 2010 .

[6]  P. T. G. Guimarães,et al.  Levantamento da qualidade da bebida do café e avaliação do estado nutricional dos cafeeiros do Alto Jequitinhonha, Minas Gerais, através do DRIS , 2010 .

[7]  Samuel de Assis Silva,et al.  Variabilidade espacial do fósforo e das frações granulométricas de um Latossolo Vermelho Amarelo , 2010 .

[8]  J. S. S. Lima,et al.  Sampling and spatial variability of chemical attributes of a soil under regenerating natural vegetation , 2010 .

[9]  S. Vieira,et al.  Spatial variability of soil chemical properties after coffee tree removal , 2009 .

[10]  V. Alvarez,et al.  Fósforo remanescente em argila e silte retirados de Latossolos após pré-tratamentos na análise textural , 2008 .

[11]  M. Oliver,et al.  Determining nugget:sill ratios of standardized variograms from aerial photographs to krige sparse soil data , 2008, Precision Agriculture.

[12]  M. Pereira,et al.  Produção de matéria seca, crescimento radicular e absorção de cálcio, fósforo e alumínio por coffea canephora e coffea arabica sob influência da atividade do alumínio em solução , 2008 .

[13]  P. Muchaonyerwa,et al.  Determination of the external phosphate requirements of two south african soils in a glasshouse pot experiment , 2008 .

[14]  J. A. Gomes,et al.  Manual de recomendação de calagem e adubação para o Estado do Espírito Santo : 5ª aproximação. , 2007 .

[15]  J. A. T. Amaral,et al.  Crescimento vegetativo sazonal do cafeeiro e sua relação com fotoperíodo, frutificação, resistência estomática e fotossíntese , 2006 .

[16]  Shufeng Han,et al.  Evaluating Cokriging for Improving Soil Nutrient Sampling Efficiency , 2003 .

[17]  Z. L. Frogbrook,et al.  Exploring the spatial relations between cereal yield and soil chemical properties and the implications for sampling , 2002 .

[18]  A. Konopka,et al.  FIELD-SCALE VARIABILITY OF SOIL PROPERTIES IN CENTRAL IOWA SOILS , 1994 .