K-Dynamics in a Continuously Submerged Limed and the Corresponding Unlimed Soil Subjected to One and Two Cycles of Drying Phase
American Journal of Applied Chemistry
Volume 6, Issue 6, December 2018, Pages: 189-196
Received: Dec. 9, 2018;
Accepted: Jan. 3, 2019;
Published: Jan. 31, 2019
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Tapa Debnath, Department of Agricultural Chemistry and Soil Science, Faculty of Agriculture, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, India
Sayan Majumder, Department of Agricultural Chemistry and Soil Science, Faculty of Agriculture, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, India
Dipankar Saha, Department of Agricultural Chemistry and Soil Science, Faculty of Agriculture, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, India
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.
K-Dynamics in a Continuously Submerged Limed and the Corresponding Unlimed Soil Subjected to One and Two Cycles of Drying Phase, American Journal of Applied Chemistry.
Vol. 6, No. 6,
2018, pp. 189-196.
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