How to cite this article:
R. Sokouti and M.H. Mahdian, 2011. Spatial Variability of Macronutrient for Soil Fertilization Management: A Case Study on Urmia Plain. International Journal of Soil Science, 6: 49-59. DOI: 10.3923/ijss.2011.49.59 URL: https://scialert.net/abstract/?doi=ijss.2011.49.59
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