K-Dynamics in a Continuously Submerged Limed and the Corresponding Unlimed Soil Subjected to One and Two Cycles of Drying Phase
Tapa Debnath,
Sayan Majumder,
Dipankar Saha
Issue:
Volume 6, Issue 6, December 2018
Pages:
189-196
Received:
9 December 2018
Accepted:
3 January 2019
Published:
31 January 2019
DOI:
10.11648/j.ajac.20180606.11
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Abstract: A laboratory experiment was carried out to study the effect of drying phases on transformation of different fractions of K in submerged limed and the corresponding unlimed soil in presence and absence of N and K fertilizers. Changes in different fractions of K were monitored with time. Results showed that irrespective of treatments, available K increased in the limed soil throughout the period of incubation. However, non-exchangeable K showed an exactly opposite trend of results particularly in limed situation indicating a dynamic equilibrium between these forms of K in soils. Although, the trend of results of both available and non-exchangeable forms are totally different in unlimed situation. The decrease in 1N boiling HNO3 extractable K is comparatively more in limed soil subjected to single drying phase. No drastic variation in lattice and total K is observed under different treatment combinations. It indicates, maintenance of drying phase has little effect on lattice and total K in soils.
Abstract: A laboratory experiment was carried out to study the effect of drying phases on transformation of different fractions of K in submerged limed and the corresponding unlimed soil in presence and absence of N and K fertilizers. Changes in different fractions of K were monitored with time. Results showed that irrespective of treatments, available K inc...
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