Potassium Availability - A Comparative Study

C. S. BALASUNDARAM

doi:https://doi.org/10.29321/MAJ.10.A03192

Madras Agricultural Journal

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Potassium Availability - A Comparative Study

Author: C. S. BALASUNDARAM,

p-ISSN: 0024-9602, e-ISSN:2582-5321, Vol: 64, Issue: may-may,

DOI:https://doi.org/10.29321/MAJ.10.A03192

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Abstract

A study to compare the different K availability indices employing a fow empirical and K activity ratios was carried out with three different soil groups. The cumulative K release pattern was also studied to categorice the roils for their ability to suppl/ K to plants. The suitability of the methods to predict X availability was evaluated by a pot experiment. using Ganga 5 maize as test crop. The results revealed that the Q/I relationship parameters viz.. -AK, ARK, PBCK, A G were found to be not suitable to predict the K availabilty status and its response.

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