Indian Journal of Agricultural Research

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Indian Journal of Agricultural Research, volume 43 issue 2 (june 2009) : 148-151

EFFECT OF LAND USE PATTERN ON P-ADSORPTIONDESORPTION CHARACTERISTICS IN TERAI SOILS OF WEST BENGAL

S.K. PaP, G.K. MondaF
1Department of Agril. Chern. and Soil Sci., North Bengal Campus, Bidhan Chandra Krishi Viswavidyalaya, Coach Behar-736165, india.

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Cite article:- PaP S.K., MondaF G.K. (2024). EFFECT OF LAND USE PATTERN ON P-ADSORPTIONDESORPTION CHARACTERISTICS IN TERAI SOILS OF WEST BENGAL. Indian Journal of Agricultural Research. 43(2): 148-151. doi: .

ABSTRACT

Phosphorus adsorption-desorption behaviour of soMs under four land Il:ie patterns
viz, forest, orchard, cultivated land and tea garden' of terai agro climatic region were
studied. Phosphorus adsorbed at 0.2 mg L-l equilibrium solution P concentration in
these land uses was low (40.2 to 67.6 mg kg·l):Th~ adsorption behaviour of these soils
could significantly be by Freundlich, mod.ified Freundlich, Langmuir and Tempkin
equations. Phosphorus adsorption at 0.2 O1g L·lequilibrium solution P concentration
significantly correlated with organic carbon (r = 0.520**), CEC(r = 0.414**), free Fe20 3
. (r = 0.385**) and AEC (r = 0.255*), suggesting the role of these soil characteristics in P
sorption process. Asubstantial amount (32.2 to 52.2%) of added P was extracted during
two successive desorption with.0.5 M NaHC03 (pH 8.5).

REFERENCES

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