Ashish Rai Surendra Singh


Soil fertility status of the intensively vegetables growing in black soils of Varanasi (UP), India is not available. Therefore, present study was under-taken to assess the fertility status by collecting 100 surface (0-15 cm depth) soil samples using geographical positioning system (GPS). Soil samples were analysed following standard methods. The pH of the surface soils ranged from 7.3 to 8.4 with a mean of 7.9 indicating alkaline nature of soil. The EC of the soils were normal and ranged from 0.17 to 0.48 dS m-1 with mean value of 0.30 dS m-1. The organic carbon content of the soils ranged from 3 to 9 g kg-1 with a mean of 5.8 g kg-1. The range (mean) values of available N, P and K were 106 to 291 (184), 8 to 65 (27) and 145 to 358 (229) kg ha-1, respectively. The soils were found 99% low in available N content and nutrient index rating of available P was found high. The range (mean) values of B, Zn, Cu, Fe and Mn were, 0.11 to 0.53 (0.40), 0.38 to 3.04 (1.08), 0.22 to 1.96 (0.79), 2.9 to 16.40 (8.42) and 0.68 to 12.64 (3.24) mg kg-1 soil, respectively. The available sulphur of the soils ranged from 7 to 33 mg S kg-1 with mean of 15 mg S kg-1 soil. Soils were categorised in to low, medium and high status, subsequently 99 % soils were found low in available nitrogen whereas 63% soil samples were found medium in available phosphorus, and 88% were medium in available potash. 26, 48 and 26% soils were low, medium and high in S, respectively and the corresponding Figs. for B were 90, 10 and 0%. In case of cationic micronutrients, 7, 58 and 35% soils were low, medium and high in Zn and the corresponding Figs. for Available Mn were 30, 44 and 26%. Fe was found 6, 59 and 35% in low, medium and high category respectively. There was no copper deficiency found in black soils of Varanasi.


Download data is not yet available.




Black soil, Micronutrients, Primary nutrients, Status

Borkotoki, B. and Das, K.N. (2008). Forms of sulphur and their relationship with soil properties in Entisols, Inceptisols and Alfisols of Assam. Journal of the Indian Society of Soil Science. 56:186-191.
Chesnin, L. and Yien, C.H. (1951). Turbidimetric determination of available sulphate. Soil Science Society of America Proceedings.15:149-151.
Das, K.N., Basumatary, A. and Borkotoki, B. (2011). Interrelationship of forms of sulphur with its availability indices and soil properties in Entisols of Assam. Journal of the Indian Society of Soil Science. 59:134-140
Denef, K., and Six, J. (2005). Clay mineralogy determines the importance of biological versus abiotic processes of macroaggregate formation and stabilization. European Journl of Soil Science. 56:469-479.
Gupta, U.C. (1967). A simplified procedure for determining hot-water-soluble boron in Podzol soils. Soil Science. 103:424-428.
Hanway. J. and Heidel, H. (1952). Soil analysis methods used in Iowa State College soil testing laboratory. Iowa State College Agricultural Bulletin. 57:1-13.
Hassink, J. (1992). Effects of soil texture and structure on carbon and nitrogen mineralization in grassland soil. Biol Fertil Soil. 14:126-134.
Jackson, M.L. (1973). Soil Chemical Analysis.Prentice Hall of India (Pvt.) Ltd., New Delhi.
Jain, N., Bhatia, A. and Pathak, H. (2014) Emission of Air Pollutants from Crop Residue Burning in India. Aerosol and Air Quality Research, 14: 422–430, doi: 10.4209/aaqr.2013.01.0031.
Kumar, R., Rawat, K.S., Singh, J., Singh, A. and Rai, A. (2013). Soil aggregation dynamics and carbon sequestration. Journal of Applied and Natural Science. 5(1):250-267.
Lindsay, W.L. and Norvell, W.A. (1978). Development of DTPA soil test for zinc, iron, manganese and copper. Soil Science Society of America Journal. 42:421-428.
Meena, H.B., Sharma, R.P. and Rawat, U.S. (2006). Status of macro and micronutrients in some soils of Tonk district of Rajasthan. Journal of the Indian Society of Soil Science, 54(4):508-512.
Olsen, S.R., Cole, C.V., Watanable, F.S. and Dean, L.A. (1945). Estimation of available phosphorus in soil by extraction with sodium bicarbonate. Circular 939 United States Department of Agriculture. pp 19.
Pulleman, M.M., Six, J., Van Breemen, N. and Jongmans, A.G. (2005). Soil organic matter distribution and microaggregate characteristics as affected by agricultural management and earthworm activity. European Journl of Soil Science. 56:453-467.
Shukla. A.K., Tiwari, P.K., Pakhare, A. and Prakash, C. (2016). Zinc and iron in soil, plant and human health. Indian Journal of Fertilizers. 12:133-149.
Singh, S. and Kumar, P. (2012). Soil fertility status of vegetables growing area of Varanasi and pulses growing area of Mirzapur. Journal of the Indian Society of Soil Science. 60:233-236.
Singh, S.K., Dey, P., Sharma, P.K., Singh, Y.V., Latare, A.M., Singh, C.M., Kumar, D., Kumar, O., Yadav, S.N. and Verma, S.S. (2016a). Primary and cationic micronutrients status in few districts of eastern Uttar Pradesh. Journal of the Indian Society of Soil Science. 64:319-332..
Singh, Y.V., Singh, S.K., Sahi, S.K., Verma, S.K., Yadav, R.N. and Singh, P.K. (2016b). Evaluation of soil fertility status from Milkipur village, Araziline Block, Varanasi district Uttar Pradesh in relation to soil characteristics. Journal of Pure and Applied Microbiology.10:1455-1461.
Subbiah, B.V. and Asija, G.L. (1956). A rapid procedure for determination of available nitrogen in soil. Current Science. 25:259-260.
Tiwari, R.C., Agarwal, H.P., Maurya, B.R. and Narayan, D. (2003). Organic matter recycling and enrichment. Department of Soil Science and Agricultural Chemistry, Institute of Agricultural Sciences, Banaras Hindu University Varanasi. Final Report of the Research Project, Submitted to ICAR (NATP), New Delhi. pp 36-41.
Walkley, A. and Black, C.A. (1934). An examination of the Degtjareff method for determining soil organic matter, and a proposed modification of the chromic acid titration method. Soil Science. 37:29-38.
Williams, C.H. and Steinberg, A. (1959). Soil sulphur fractions as chemical indices of available sulphur in some Australian soils. Australian Journal of Agricultural Research. 10: 340-352.
Citation Format
How to Cite
Rai, A., & Singh, S. (2018). Available nutrients status in black soils of Varanasi district of eastern part of Uttar Pradesh. Journal of Applied and Natural Science, 10(4), 1238-1242. https://doi.org/10.31018/jans.v10i4.1925
More Citation Formats:
Research Articles