Open AccessSpatial distribution of N, P and K in major yam soils of southeastern Nigeria
Author(s) -
Oludare C. G,
Mikako Ito,
O Osunde A,
Robert Asiedu
Publication year - 2007
Publication title -
african journal of biotechnology
Language(s) - English
Resource type - Journals
ISSN - 1684-5315
DOI - 10.5897/ajb2007.000-2447
Subject(s) - geostatistics , soil water , nutrient , soil test , soil nutrients , environmental science , soil science , spatial distribution , forestry , geography , spatial variability , mathematics , ecology , biology , statistics , remote sensing
Pedometrics, the application of numerical techniques to describe soil attributes and enhance objectivity in soil-related decision making, was applied to soil samples from 149 geo-referenced locations in yam growing area of southeastern Nigeria. Geostatistical technique was applied using Krigin to estimate soil parameters from unsampled sites. Results revealed multi-nutrient deficiencies of N, P, and K in the area. The magnitude of deficiency is N > K > P. Pragmatically, 4.19, 2.59 and 1.76 m ha are deficient in total N, exchangeable K and available P, respectively. This could guide soil nutrient management decision for sustainable yam production in the area.
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