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| Titel: |
Land Evaluation for Soybean (Glycine max L. Merrill) Production Based on Kriging Soil and Climate Parameters for the Kakamega District, Kenya |
| Auteur: |
J.A. Rota P. Wandahwa D.O. Sigunga |
| Verschenen in: |
Journal of agronomy |
| Paginering: | Jaargang 5 (2006) nr. 1 pagina's 142-150 |
| Jaar: |
2006 |
| Inhoud: |
The purpose of this study was to produce soil and climate characteristic maps from random sample point data and demonstrate their potential in land suitability evaluation for soybean (Glycine max L. Merrill) production in Kakamega District, Kenya. Crop requirements were sourced from literature and adapted to local conditions. Soil data were generated from soil samples collected from 76 geo-referenced sites randomly distributed throughout the District. Climate data was obtained from the Almanac Characterization Tool and records of Kakamega Research Station for the two seasons evaluated. The sample points were used to obtain continuous surface maps of individual characteristics using ordinary kriging method in GIS. They were reclassified into suitability classes using the crop requirements and overlaid to produce the final land suitability based on the most limiting factor. Very suitable, moderate and marginally suitable land is 3, 8 and 9%, during long rains and , 0 and 9% during short rains respectively. Unsuitable land owing to soil pH is 2% in both seasons while valleys, escarpments and forests account for 18% of the land. Comparison of the results with those obtained by averaging data from sample points representing soil units revealed that kriging produced better evaluation results. |
| Uitgever: |
Asian Network for Scientific Information (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 31 van 62 gevonden artikelen
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