NDLI: Characteristics of soil exchangeable potassium according to soil color and landscape in Ferralsols environment

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Volume: 2 Issue: 1

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Characteristics of soil exchangeable potassium according to soil color and landscape in Ferralsols environment

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Characteristics of soil exchangeable potassium according to soil color and landscape in Ferralsols environment

Content Provider	Taylor & Francis Online
Author	Jacques, Kouassi Kouassi Lassane, Traoré Sylvain, Sehi Zokagon Koné, Brahima O’Neill, Craig
Abstract	The use of soil color as Munsell data was explored for in situ indication of soil potassium (K) availability toward a friendly method of agricultural land survey. Soil contents of K, calcium, and magnesium were determined for 998 upland soil samples from Côte d’Ivoire (7–10°N). Soil depths (0–20, 20–60, 60–80, and 80–150 cm), redness ratio (RR), and redness factor (RF) were considered. Significant association was observed between K-levels (high, medium, and low) in topsoil and its color hue, and the highest cumulative frequency of 2.5YR in high and medium levels was characterizing the hill slope position (summit and upper slope). Deep horizon, foot slope, and yellowish color (7.5YR and 10YR) were more relevant to low K-level. Significant linear regressions of soil content of K were observed according to both redness indices indifferently to the topographic positions and soil depths in some extend. Of these finding in the line of folk knowledge, RR and RF are recommended for in situ measurement of soil K, and 2.5YR as color hue may be use as indicator of K-enriched soil at hill slope position.
File Format	PDF HTM / HTML
ISSN	23312041
DOI	10.1080/23312041.2016.1199523
Journal	Cogent Geoscience
Volume Number	2
Issue Number	1
Language	English
Publisher	Cogent
Publisher Date	2016-06-30
Access Restriction	Open
Subject Keyword	Indicator of soil fertility Potassium Catena Soil color Folk knowledge
Content Type	Text
Resource Type	Article

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