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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2018: 95.39
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(5): 2829-2836
DOI: https://doi.org/10.20546/ijcmas.2018.705.328


Fertility Status of Major Cropping Systems Existing in Black Soils of Mudhol Taluka of Northern Karnataka, India
M.V. Rekha*, E.K. Anita, B.V. Champa, Ashok, S. Alur and M.S. Nagaraja
Department of Soil Science and Agricultural Chemistry, University of Horticultural Sciences, Bagalkot - 587 104, India
*Corresponding author
Abstract:

Soil properties are sensitive to changes in the soil environment as influenced by vegetation, climate and inputs and losses of biomass and nutrients. Thus, the cropping systems with different management practices are likely to influence soil properties. Grid based soil survey was conducted in Mudhol to compare the soil fertility status of three major cropping systems namely, sugarcane, groundnut-maize/onion and cereal-pulse systems. Surface composite soil samples representing 143 grids of 4.86 sq km each were analyzed for available major and secondary nutrients and the factors influencing their availability namely, pH, free CaCO3 and soil organic–C. Among nutrients, available-N, K and S varied significantly among three cropping systems while, available-P, Ca and Mg did not vary significantly. Variations in soil pH as influenced by free CaCO3 might have reduced phosphorus availability. The soil organic-C was found positively correlated with N-availability in soils. Higher amounts of nutrient (except K) in irrigated cropping systems especially, sugarcane system may be attributed to nutrient and water management practices and high biomass turnovers. Less utilization of soil-K may be the reason for higher K-availability in cereal-pulse cropping systems.


Keywords: Soil fertility, Free CaCO3, Vertisols, Cropping systems, Soil organic-C
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How to cite this article:

Rekha, M.V., E.K. Anita, B.V. Champa, Ashok, S. Alur and Nagaraja, M.S. 2018. Fertility Status of Major Cropping Systems Existing in Black Soils of Mudhol Taluka of Northern Karnataka.Int.J.Curr.Microbiol.App.Sci. 7(5): 2829-2836. doi: https://doi.org/10.20546/ijcmas.2018.705.328