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Evaluation of nutrient extraction ability of commonly employed procedures in nutrient sorption studies Latha M.R.1, Murugappan V.1,2 1Office of Dean (Agriculture), Tamil Nadu Agricultural University, Coimbatore-641 003, India. 2Centre for Soil and Crop Management Studies, TNAU, Coimbatore-641 003, India. Abstract Nutrient sorption studies were conducted in two benchmark soils belonging to Kalathur and Irugur series by two methods, viz., Agro Services International (ASI) and conventional methods in order to quantitatively assess the variations in their nutrient extracting ability. The results indicated that the two methods differed very much in their nutrient extracting ability among soils of different characteristics and exhibited specificity with some nutrients. Thus, enough caution must be exercised while using such data of nutrient sorption studies in defining fertilizer optima in any fertilization programme for different soil types. Top | | |
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