Evaluation of two extractants for the estimation of available potassium, Calcium and magnesium in acid soils under rubber (Record no. 59033)

MARC details
000 -LEADER
fixed length control field 01358nam a2200217Ia 4500
100 ## - MAIN ENTRY--AUTHOR NAME
Personal name Sudhakumari B
245 #0 - TITLE STATEMENT
Title Evaluation of two extractants for the estimation of available potassium, Calcium and magnesium in acid soils under rubber
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Name of publisher Indian Journal of Natural Rubber Research
Year of publication 1994
300 ## - PHYSICAL DESCRIPTION
Number of Pages 103-106
520 ## - SUMMARY, ETC.
Summary, etc Two extractants were compared for the estimation of available K, Ca and Mg in acid soils under rubber. Wide variation in soil K, Ca and Mg was recorded between the samples. Numerically higher values were obtained for available K with ammonium acetate extraction. For Ca and Mg more quantity was extracted with Morgans extractant. Correlations between soil test values and corresponding leaf nutrient concentrations indicated that both extractants are equally good for evaluating the availability of K and Ca. Considering the non-corrodable nature and being the universal extractant, ammonium acetate was found to be the better choice. A better extractant has to be identified for available Mg.
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term Ammonium acetate
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term Available nutrients
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term Exchangeable ions
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term Hevea brasiliensis
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term Sodium acetate
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name Joseph Mercykutty
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name Karthikakuttyamma M
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name Mathew M
942 ## - ADDED ENTRY ELEMENTS (KOHA)
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