Studies on the Available Nutrient-Supplying Capacity of Soil in Degradation Vulnerable Soils of Central Dry Zone in Tumkur District, Karnataka, India

Shafnas, I.

Department of Soil Science and Agricultural Chemistry, UAS GKVK, Bengaluru, India.

Anil Kumar, K. S.

NBSSLUP, Hebbal, Bengaluru-560024, India.

Prakasha, H. C.

PGS, UAS, GKVK, Bengaluru, India.

*Author to whom correspondence should be addressed.


Land degradation resulting from various natural and anthropogenic activities including the loss of organic matter, decline in soil fertility, erosion, acidity, alkalinity and the effect of toxic chemical is a serious global environmental problem, which may be triggered by climatic factors and their aberrations. The detailed reconnaissance soil survey was carried out in Tumkur district of Karnataka to study plant available nutrients in degradation vulnerable soils of central dry zone in Tumkur district, Karnataka during 2021-2022 using remote sensing, GIS and field studies. Satellite imageries (Sentinal -2) of three seasons were used along with soil map to delineate the degradation soils through visual interpretation. Using this map resource characterization was carried out. Out of thirteen soil pedons studied from Tumkur district, nine pedons were studied from central dry zone of Tumkur covering six taluks. These pedons belongs to Alfisols, Inceptisols and Entisols soil order. Soils were very strongly acidic (4.54) to very strongly alkaline (9.33) with non- saline nature in all pedons. The organic carbon content was low high, with higher content in Hosahalli of Madhugiri and decreased with increased depth in pedons. Available nitrogen was low to high and available phosphorus and potassium were low to medium in range. Secondary and micronutrients is soil was low to high, except zinc and boron, showing deficiency in most of the pedon. Soil fertility status assessment of different major soils of central dry zone of Tumkur help in developing sustainable management plan for improving the productivity and also growing the suitable crop, by preventing the degradation.

Keywords: Degradation, Tumkur, plant available nutrients, central dry zone

How to Cite

Shafnas, I., K. S. , A. K., & H. C. , P. (2023). Studies on the Available Nutrient-Supplying Capacity of Soil in Degradation Vulnerable Soils of Central Dry Zone in Tumkur District, Karnataka, India. International Journal of Environment and Climate Change, 13(11), 1293–1303.


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Ayoub AS, McGaw BA, Shand CA, Mid- wood AJ. Phytoavailability of Cd and Zn in Soil Estimated by Stable isotope Exchange and Chemical Extraction. Plant and Soil. 2003;152(2): 291-300.

Cope JT, Evans ET. Soil testing. Adv. Soil Sci. 1985;1:201-228.

Soil survey staff. Keys to Soil Taxonomy, 13th ed. USDA-Natural Resources Conservation Service; 2022

Jackson ML. Soil chemical analysis. Prentice Hall of India (P) Ltd., New Delhi; 1973.

Walkley J, Black IA. An examination of the Degtjareff method for determining soil organic matter and a proposed modification of chromic acid titration method. Soil Science. 1934;37: 29-38.

Subbiah BV, Asija CL. A rapid procedure for the determination of available nitrogen in soils. Current Sci. 1956;25:259-260.

Black CA. Methods of Soil Analysis, part 2. Chemical and Microbiological Properties, ASA, Inc. Madison, Wis, USA; 1965.

Page AL, Miller RH, Keeney DR. Methods of Soil and Plant Analysis, Part-2. Soil Sci. Soc. Am. J., Inc, Publis., Madison, Wisconsin, USA. 1982;367.

Lindsay WL, Norvell WA. Development of a DTPA Soil Test for Zinc, Iron, Manganese, and Copper. Soil Sci. Soc. Am. J. 1978;442:421–428.

Nagendra BR, Patil PL. Characterization and classification of soil resources of Shirol West-1 micro-watershed. Karnataka Journal of Agricultural Sciences. 2015;28(4):504-509.

Reddy KS, Naidu MVS. Characterization and classification of soils in semi-arid region of Chennurmandal in Kadapa district, Andhra Pradesh. Journal of the Indian Society of Soil Science. 2016; 64:207- 217.

Vasundhara R, Srinivasan R, Dharumarajan S, Kalaiselvi B, Hegde R. Characterization and Classifications of Soils of Eastern Ghats Region of Karnataka; 2022.

Sumithra KN, Budihal SL, Patil SG, Bellakki MA, Desai BK. Productivity potentials of Timanhal micro-watershed soils. Karnataka J. Agric. Sci. 2013;26 (1):40-45.

Kaushik Saha. Characterization, classification and suitability evaluation of major mango-growing soils of southern Karnataka. M. Sc. (Agri.) Thesis, University of Agricultural Sciences, Bangalore, Karnataka, India; 2020.

Satish S, Naidu MVS, Ramana KV, Munaswamy V, Reddy GP, Sudhakar P. Characterization and classification of the soils of Brahmanakotkur watershed in Kurnool district of Andhra Pradesh. Journal of the Indian Society of Soil Science. 2018;66:350- 361.

Malo DD, Schumacher TE, Doolittle JJ. Long-term cultivation impacts on selected soil properties in the northern Great Plains. Soil Tillage Res. 2005;81(2):277-291.

Ashok KB. Sulphur status of selected soil series of Karnataka and studies on direct and residual effect of graded level of sulphur on crop. M. Sc. (Agri.) Thesis, Univ. Agric. Sci., Dharwad, Karnataka (India); 2001.

Srinivasan R, Natarajan A, Kalaivanan D, Anil Kumar KS. Soil fertility status of cashew growing soils of Dakshina Kannada district of coastal Karnataka. J. Plant. Crops. 2013;41(3): 373-379.

Sekhar CC, Naidu MVS, Ramprakash T, Balaguravaiah D. Characterization and classification of soils in the central parts of Prakasam district in Andhra Pradesh, India. Int. J. Curr. Microbiol. App. Sci. 2017;6(10):2699-2712.

Hirekurabar BM, Satayanarayana T, Sarangamath PA, Manjunathaiah HM. Forms of potassium and their distribution in soils under cotton based cropping system in Karnataka. J. Indian Soc. Soil Sci. 2000;48:604-608.

Fisseha I. Macro and micronutrients distribution in Ethiopian Vertisols landscapes. Ph.D. Dissertation submitted to Institute fur Bondenkunde und Standortslehre, University of Hohenheim, Germany. 1992;201.

Murthy IYLN. Sastry TG, Datta SC, Narayanasamy G, Rattan RK. Distribution of micronutrient cations in vertisols derived from different parent materials. J. Indian Soc. Soil Sci. 1997;45:577-580.

Rajkumar GR. Studies on forms and distribution of micronutrients in paddy soils of Tungabhadra project area, Karnataka. M. Sc. (Agri.) Thesis Univ. Agric. Sci., Dharwad; 1994.

Mishra A, Pattnaik T, Das D, Das M. Vertical distribution of available plant nutrients in soils of mid central valley at Odisha zone, India. American Journal of Experimental Agriculture. 2015;7(4):214-221.

Pulakeshi HBP, Patil PL, Dasog GS. Characterization and classification of soil resources of soil resources derived from chlorite schist in northern transition zone of Karnataka. Karnataka J. Agric. Sci. 2014;27(1):14-21.