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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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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 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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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.2017.6(5): 2578-2584
DOI: https://doi.org/10.20546/ijcmas.2017.605.290


Recent Developments in Multi-nutrient Extractants Used in Soil Analysis
Chiranjeev Kumawat1*, Brijesh Yadav1, A.K. Verma1, R.K. Meena1, Ravina Pawar2, Sushil Kumar Kharia1, R.K. Yadav1, Rohitash Bajiya1, Atul Pawar1, B.H. Sunil1 and Vivek Trivedi1
1ICAR-Indian Agricultural Research Institute, New Delhi-110012, India
2Dr. Yashwant Singh Parmar University of Horticulture and Forestry, Solan,Himachal Pradesh-173230, India
*Corresponding author
Abstract:

Universal extractant is a term used to designate reagents or procedures to extract several elements or ions to assess soil fertility status or levels of toxicity. The extraction procedure should be rapid, reproducible, inexpensive, adaptable to soils from different regions, and extract the labile forms of nutrients which might be potentially available to plants. Most of the extractants in use are fall short of these requirements. Modified M3 method for simultaneous extraction of macro and micro nutrients in arable land soils and it was found to be greatly correlated with the existing methods for NO3-N, available P, Zn, Cu and B, exchangeable K, Ca and Mg and easily reducible Mn. A new, easily applicable soil extraction method has been developed using the coffee percolator principle and the results are in close correlation with those of conventional soil testing methods and with the nutrient uptake of the sunflower and ryegrass used as test crops. Several techniques using cation or anion exchange resins which allow the simultaneous extraction of Ca, Mg, K, Al, Mn and P from soil were assessed and all the resin procedures have the potential to reduce the time required for analysis of Ca, Mg, K, Mn and P in soil. Despite of these developments, today the challenge is to select an appropriate extractant that take full advantage of multi-element analysers such as the ICP, suitable for a range of soil characteristics, such as pH, texture, organic matter content, and having an established significant relationship between elemental level and crop response. Therefore evaluation of various extraction methods for use under particular soil conditions, in various regions or within specific cropping situations is still needed.


Keywords: Extractant, Shaking time, Extraction efficiency,DTPA
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How to cite this article:

Chiranjeev Kumawat, Brijesh Yadav, A.K.Verma, R.K.Meena, Ravina Pawar, Sushil Kumar Kharia, R.K.Yadav, Rohitash Bajiya, Rohitash Bajiya1, Atul Pawar, B.H. Sunil and Vivek Trivedi. 2017. Recent Developments in Multi-nutrient Extractants Used in Soil Analysis.Int.J.Curr.Microbiol.App.Sci. 6(5): 2578-2584. doi: https://doi.org/10.20546/ijcmas.2017.605.290