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Vol. 11, Issue 12 (2022)

Fertility status and potassium fractions under different land use systems of Alnavar taluk of Dharwad district

Author(s):
Ramesh, Vijay Kumar C, KK Math and Shubha S
Abstract:
Sixty composite soil samples from surface (0-20 cm) were collected and analyzed for pH, EC, OC, available nitrogen, phosphorous, potassium, sulphur and different forms of potassium. The soils were acidic to neutral (4.86-7.50) and The soils of the forestry ecosystem have a somewhat low pH. The EC is normal in range (0.17 to 1.58 dSm-1) and the cation ion exchange of the soils was low to medium (8.48 to 31.74 cmol (p+) kg-1). The taluk's soils had low to medium levels of organic carbon, medium levels of nitrogen that was readily accessible, low levels of phosphorus, and medium to high levels of potassium. Higher SOC (7.28 to 12.62 g kg-1), available N (193 to 322 kg ha-1) and available P (19.3 to 32.8 kg ha-1) were recorded in the soils of forest ecosystem followed by sugarcane, maize and paddy-based land use system.
Sugarcane-based land use system recorded higher potassium fractions content i.e. WS-K (3.01 to 5.11 mg kg-1), exchangeable-K (105.09 to 182.09 mg kg-1), non-exchangeable K (214.95 to 452.15 mg kg-1), lattice-K (8685 to 13160 mg kg-1) and total-K (9181 to 13750 mg kg-1).
Pages: 6271-6276  |  149 Views  60 Downloads


The Pharma Innovation Journal
How to cite this article:
Ramesh, Vijay Kumar C, KK Math, Shubha S. Fertility status and potassium fractions under different land use systems of Alnavar taluk of Dharwad district. Pharma Innovation 2022;11(12):6271-6276.

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