Assessment of Spatial Distribution of Major soil Nutrients in Bhagyanagar Subwatershed, Koppal District, Karnataka using GIS Techniques

Rajendra Hegde; R Srinivasan; K V Seema; S Srinivas; K V Niranjana; B A Dhanorkar

doi:10.53989/bu.ga.v11i2.22.1

Article

VIEWS 269
PDF 57

Geographical analysis

DOI: 10.53989/bu.ga.v11i2.22.1

Year: 2022, Volume: 11, Issue: 2, Pages: 11-15

Original Article

Assessment of Spatial Distribution of Major soil Nutrients in Bhagyanagar Subwatershed, Koppal District, Karnataka using GIS Techniques

Rajendra Hegde¹, R Srinivasan^1*, K V Seema¹, S Srinivas¹, K V Niranjana¹, B A Dhanorkar¹

¹ICAR-National Bureau of Soil Survey and Land Use Planning, Regional Centre, Bangalore, 560024

*Corresponding Author
Email: [email protected]

Received Date:22 January 2022, Accepted Date:22 December 2022

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

A study on the assessment of the spatial distribution of soil nutrients was conducted in the Bhagyanagar subwatershed of Koppal district, Karnataka using GIS techniques. A total of 592 surface soil samples (0-20 cm) were collected at 320 m grid interval and analyzed the soil properties. Selective soil properties were mapped viz., Soil Reaction (pH), Electrical Conductivity (EC), Organic Carbon (OC), Available Phosphorus (P2O5), and Available Potassium (K2O). The results of the spatial distribution of soil properties like pH show 23% and 14.34% of the area were strongly alkaline (pH 8.4-9.0), and very strongly alkaline (pH>9.0), respectively. Soils are non-saline (EC <2 dSm-1), OC rated from low (<0.5%) to high (>0.75%), the maximum area was occupied medium (37.5%) and low (22.67%), and 7% was high. Available phosphorus 54.87% of the area was medium (23-57 kg ha-1), and 6.74% was in low (<23 kg ha-1) rated. Similarly, Available potassium 45.44% of the area was medium (145-337 kg ha-1) and 20.33% in high (>337 kg ha-1). Spatial distribution of soil nutrients is most important to know the status of the soil fertility and assists in adjusting the fertilizer schedules to different crops in the Watershed.

Keywords: Spatial Distribution, Soil Nutrients, Organic Carbon, Phosphorus, Potassium

References

Maccarthy JD, Whittaker AD, Searcy SW. Sampling resolutions for prescription farming and their effects on cotton yield. Trans. Am. Soc. Agric. Eng. 1997.
Gruhn P, Goletti F, Yudelman M. Integrated Nutrient Management, Soil Fertility, and Sustainable Agriculture. Current Issues and Future Challenges. 2000;32:1–26. Available from: https://ageconsearch.umn.edu/record/16236/files/dp000032.pdf
Deshmukh KK. Evaluation of soil fertility status from Sangamner Area. Rasayan J. Chem. 2012;5(3):398–406. Available from: https://citeseerx.ist.psu.edu/document?repid=rep1&type=pdf&doi=eea0df1b3d5586f84dc04243c9402d663ea66050#:~:text=pH%20ranged%20from%208%20to,status%20of%20organic%20carbon%20respectively.
Islam KR, Weil RR. Land use effects on soil quality in a tropical forest ecosystem of Bangladesh. Agriculture, Ecosystems & Environment. 2000;79(1):9–16. Available from: https://doi.org/10.1016/S0167-8809(99)00145-0
Jun W, S. Effects of land use on soil nutrients in Tibetan Region. 2007.
Wang HJ, Li XW, Shi XZ, Yu DS. Distribution of soil nutrient under different land use and relationship between soil nutrient and soil granule composition”. Journal of Soil Water Conservation. 2003;2:44–46.
El-Swaify SA, Pathak P, Rego TJ, Singh S. Soil Management for Optimized Productivity Under Rainfed Conditions in the Semi-Arid Tropics. Advances in Soil Science. 1985;1:1–64. Available from: https://oar.icrisat.org/3583/1/JA_583.pdf
Rego TJ, Rao VN, Seeling B, Pardhasaradhi G, Rao JVDKK. Nutrient balances—a guide to improving sorghum- and groundnut-based dryland cropping systems in semi-arid tropical India. Field Crops Research. 2003;81(1):53–68. Available from: https://doi.org/10.1016/S0378-4290(02)00199-5
Sharma KL, Grace JK, Srinivas K, Venkateswarlu B, Korwar GR, Sankar GM, et al. Influence of Tillage and Nutrient Sources on Yield Sustainability and Soil Quality under Sorghum–Mung Bean System in Rainfed Semi‐arid Tropics. Communications in Soil Science and Plant Analysis. 2009;40(15-16):2579–2602. Available from: https://doi.org/10.1080/00103620903113299
Manna MC, Rao SS. Impact of long-term fertilizers and manure application on C- sequestration efficiency under different cropping systems. Indian Journal of Soil Conservation. 2011;40:70–77.
Jackson ML. Soil Chemical Analysis. New Delhi. Prentice Hall of India Pvt. Ltd. 1962.
Walkley AJ, Black IA. Estimation of soil organic matter by chromic acid titration method. Soil Science. 1934;37:29–38.
Olsen SR, Cole CV, Watanabe FS, Dean LA. Estimation of available phosphorus in soils by extraction with sodium bicarbonate. U.S. 1954.
Richards LA. Diagnosis and Improvement of Saline and Alkali Soils. Soil Science. 1954;78(2):154.
Mokolobate MS, Haynes RJ. Increases in pH and soluble salts influence the effect that additions of organic residues have on concentrations of exchangeable and soil solution aluminium. European Journal of Soil Science. 2002;53(3):481–489. Available from: https://ui.adsabs.harvard.edu/abs/2002EuJSS..53..481M/abstract
Tairo EV, Ndakidemi PA. Possible benefits of rhizobial inoculation and phosphorus supplementation on nutrition, growth and economic sustainability in grain legumes”. Am. J. Res. Commun. 2013;1(12):532–556. Available from: http://www.usa-journals.com/wp-content/uploads/2013/11/Tairo_Vol112.pdf
Nawale AB, Saraswat R. Analysis of soil characteristics for crop development in Sangamner tahsil in Ahemadnagar district of Maharashtra”. Appl. Res. Dev. Inst. J. 2013;9(6):29–41.

Copyright

© 2022 Hegde et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Published By Bangalore University, Bengaluru, Karnataka