Articles | Volume 7, issue 3
Research article
07 Jun 2016
Research article |  | 07 Jun 2016

Estimations of soil fertility in physically degraded agricultural soils through selective accounting of fine earth and gravel fractions

Mavinakoppa S. Nagaraja, Ajay Kumar Bhardwaj, G. V. Prabhakara Reddy, Chilakunda A. Srinivasamurthy, and Sandeep Kumar

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Cited articles

Arvidsson, J.: Nutrient uptake and growth of barley as affected by soil compaction, Plant Soil, 208, 9–19, 1999.
Grewal, S. S., Singh, K., and Dyal, S.: Soil profile gravel concentration and its effect on rainfed crop yields, Plant Soil, 81, 75–83, 1984.
Hamarashid, N. H., Othman, M. A., and Hussain, M. H.: Effects of soil texture on chemical compositions, microbial populations and carbon mineralization in soil, Egypt. J. Exp. Biol., 6, 59–64, 2010.
Hanway, J. J. and Heidel, H.: Soil analysis method as used in Iowa State College Soil Testing Laboratory, Iowa Agriculture, 54, 1–31, 1952.
Hartemink, A. E.: Assessing soil fertility decline in the tropics using soil chemical data, Adv. Agron., 89, 179–225, 2006.
Short summary
Three nutrient stock estimation methods, generalized soil mass (GSM), bulk-density-based soil mass (BDSM) and the proportion of fine earth volume (FEV) method, were compared to estimate organic C and major available nutrient stocks in physically degraded agricultural soils of southern India. The stocks were lowest using FEV method followed by GSM and BDSM method. The study highlights the importance of estimation methods to obtain realistic estimates for the development of degraded land areas.