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Status of Zinc Fractions in Soils of Cooch Behar District, West Bengal, India


Affiliations
1 Department of Soil Science and Agricultural Chemistry, Uttar Banga Krishi Viswa Vidyalaya, Pundibari 736 165, India
2 Department of Genetics and Plant Breeding, Uttar Banga Krishi Viswa Vidyalaya, Pundibari 736 165, India
3 National Bureau of Soil Survey and Land Use Planning (ICAR), Block DK, Sector-II, Salt Lake, Kolkata 700 091, India
 

A study was conducted on the distribution of different forms of zinc (Zn) in soils (0–20 and 20–40 cm depths)in different blocks of Cooch Behar district, West Bengal,India. The soils of the selected areas were acidic in reaction (pH) at both the depths, ranging from 4.23 to 6.96 (0–20 cm) and 3.89 to 6.45 (20–40 cm) and having sandy to sandy loam texture. The different fractions of Zn varied among the soils of all locations. The order of different zinc fractions was: exchangeable zinc(Ex-Zn) < organic matter-bound zinc (OM-Zn) –1 at 0–20 cm depth and 0.92 kg ha–1 in the soils of Tufanganj-II at 20–40 cm depth respectively. Exch-Zn,OM-Zn, Mn-Ox-Zn and Am-Ox-Zn were positively correlated with CEC (r = 0.088, r = 0.105, r = 0.137, r = 0.103) at 0–20 cm depth, while at 20–40 cm depth, Exch-Zn, OM-Zn, Mn-Ox-Zn, Am-Ox Zn and Cry-Ox-Zn were positively correlated with CEC (r = 0.204, r = 0.168, r = 0.342, r = 0.123, r = 0.278). The influence of different soil properties on the distribution of Zn fractions in the soils was apparent from this study.

Keywords

Acid Soil, Cation Exchange Capacity, Terai Region, Zinc Fractions.
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  • Status of Zinc Fractions in Soils of Cooch Behar District, West Bengal, India

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Authors

Sharmme Gogoi
Department of Soil Science and Agricultural Chemistry, Uttar Banga Krishi Viswa Vidyalaya, Pundibari 736 165, India
G. C. Banik
Department of Soil Science and Agricultural Chemistry, Uttar Banga Krishi Viswa Vidyalaya, Pundibari 736 165, India
A. Kundu
Department of Genetics and Plant Breeding, Uttar Banga Krishi Viswa Vidyalaya, Pundibari 736 165, India
S. Mukhopadhyay
National Bureau of Soil Survey and Land Use Planning (ICAR), Block DK, Sector-II, Salt Lake, Kolkata 700 091, India
D. Mukhopadhyay
Department of Soil Science and Agricultural Chemistry, Uttar Banga Krishi Viswa Vidyalaya, Pundibari 736 165, India

Abstract


A study was conducted on the distribution of different forms of zinc (Zn) in soils (0–20 and 20–40 cm depths)in different blocks of Cooch Behar district, West Bengal,India. The soils of the selected areas were acidic in reaction (pH) at both the depths, ranging from 4.23 to 6.96 (0–20 cm) and 3.89 to 6.45 (20–40 cm) and having sandy to sandy loam texture. The different fractions of Zn varied among the soils of all locations. The order of different zinc fractions was: exchangeable zinc(Ex-Zn) < organic matter-bound zinc (OM-Zn) –1 at 0–20 cm depth and 0.92 kg ha–1 in the soils of Tufanganj-II at 20–40 cm depth respectively. Exch-Zn,OM-Zn, Mn-Ox-Zn and Am-Ox-Zn were positively correlated with CEC (r = 0.088, r = 0.105, r = 0.137, r = 0.103) at 0–20 cm depth, while at 20–40 cm depth, Exch-Zn, OM-Zn, Mn-Ox-Zn, Am-Ox Zn and Cry-Ox-Zn were positively correlated with CEC (r = 0.204, r = 0.168, r = 0.342, r = 0.123, r = 0.278). The influence of different soil properties on the distribution of Zn fractions in the soils was apparent from this study.

Keywords


Acid Soil, Cation Exchange Capacity, Terai Region, Zinc Fractions.

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DOI: https://doi.org/10.18520/cs%2Fv113%2Fi06%2F1173-1178