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A study was conducted to an assessment of physico-chemical properties of soil of Chikknayakana Hally (CNH), Koratigere (KTG), Madhugiri (MDG) Pavagada (PVG), Sira and Tiptur (TPT) taluks of Tumkur district was carried out in 2018-2019 under natural farming. The main objectives of this study was to carried out the survey, collection of information and analysis of chemical properties of soil. Totally 952 soil samples were collected at a depth of 0-15 cm and the study revealed that pH ranged 3.70-7.50 acidic to neutral, and EC is slightly saline in nature. Available nitrogen content ranged from 46.5-657.1 kg ha-1, phosphorus from 5.4-267.7 kg ha-1and potassium status in soils of different taluks ranged from 17.25 to 667 kg ha-1. Maximum soil samples of the area showed sufficient in manganese, Cu and Fe status, but Zinc and boron were deficient.
Walkley AJ, Black CA. An examination of the method for determining soil organic matter and a proposed modification of the chromic acid titration method. Soil Sci. 1934;37:29-38.
Subbiah BV, Asija GL. A rapid procedure for the estimation of available nitrogen in soil. Curr. Sci. 1956;25:259-260.
Black CA. Methods of Soil Analysis- Part 2, Agronomy monograph No.9, American Society of Agronomy, Madison, Wisconsin, USA. 1965;15-72.
Brady NC. The nature and properties of soils, In 8 edition. Macmillan Publishing Co. Inc. New York; 1985.
David Crohn. Nitrogen mineralization and its importance in organic waste recycling. In Proc. National Alfalfa Symposium, 13-5 December, 2004, San Diego, CA, UC Cooperative Extension, University of California, Davis 95616. 2004;156.
Preston, Sullivan. Drought resistance soil, Agronomy Technical Note. Appropriate technology transfer for rural area (ATTRA). 2000;1-7.
Anonymous. Interpretation for soil and land resource management. Annual Report, NBSS&LUP. 1998;47:65-68.
Datta SC. Potassium dynamics and status in Indian soils, Karnataka. J. Agril Sci. 2011;24(1):7-11.
Balanagoudar AB. Investigation on status and former of sulphur in soils of north Karnataka. Master's thesis, University of Agricultural Sciences Dharwad (India). 1989;105.
Scherer HW, For̋ster S, Welp G. Sulfur fractions in particle-size separates as influenced by long-term application of mineral and organic fertilizers. Plant Soil Envi. 2012;58(5):242-248.
Devaraj D. Distribution of sulphur forms in selected soil series of Kolar district and response of radish to sulphur sources. Master's thesis, University of Agricultural Sciences Bangalore (India). 1994;124.
Lindsay WL. Inorganic phase equilibria of micronutrients in soils. In: micronutrients in Agriculture JJ. Mortvedtet al., (ed.). Soil Sci. Soc. Am., Madison, Wisconsin, USA. 1972;41-57.
Nagaraju MSS, Ganesh H Bamble, Rajeev Srivastava, Nasre RA, Barthwal AK. Characterization and evaluation of land resources for management of Saraswati watershed in Buldhana district of Maharashtra. Ind. J. Soil Cons. 2015;43(1):102-109.
Ho SB. Boron deficiency of crops in Taiwan. Department of Agricultural Chemistry, Taiwan University. 2000;106-684.