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vol.28 número2ESTUDO COMPARATIVO DA ESTIMATIVA DA EVAPOTRANSPIRAÇÃO DE REFERÊNCIA NO PERÍODO CHUVOSO PARA TRÊS LOCALIDADES NO ESTADO DO ESPÍRITO SANTOEVALUACIÓN DEL CONTENIDO DE ALMIDON EN PAPAS (SOLANUM TUBEROSUM CV. DESIRÉE), PRODUCIDAS EN FORMA ORGÁNICA Y CONVENCIONAL, EN LA PROVINCIA DE CURICÓ, REGIÓN DEL MAULE índice de autoresíndice de materiabúsqueda de artículos
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Idesia (Arica)

versión On-line ISSN 0718-3429

Resumen

SOARES DE SOUZA LIMA, Julião et al. SPATIAL ANALYSIS OF CHEMICAL ATTRIBUTES OF THE SOIL AND PRODUCTIVITY IN THE BLACK PEPPER CROP (PIPER NIGRUM, L.). Idesia [online]. 2010, vol.28, n.2, pp.31-39. ISSN 0718-3429.  http://dx.doi.org/10.4067/S0718-34292010000200004.

The knowledge of determined attributes of the soil associated to the reply of productivity of the black pepper can make the application rational, located and individualized of the farm input. This work was carried out to evaluate the spatial variability of the chemical attributes and productivity in the black pepper. The soil chemical attributes were collected from under the projection of the plant canopy’s to the depth of 0- 0,20 m , with distance among lines of 2,5 m and 4,0 m among feet in the planting line, totaling 76 points. In each point were determinate the attributes P, K, Ca, Mg, H+Al and activates acidity (pH). With base in those analyses, the sum of basic cations (SB), capacity of cationic change (CTC) and basic saturation (V) were calculated. The attributes pH, P, K, Al, H+Al and production presented a spatial dependence structure, allowing their mapping by geostatistics techniques. Chemical attributes presented low range values, exception the P attribute, evidencing the low soil continuity spatial under the black pepper crop. The wide variation range of chemical attributes shows the necessity of individualized points of fertilizer application for black pepper cropping.

Palabras clave : Soil management; maps; semivariograms.

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