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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39 For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2019: 96.39
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39
For more details click here

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Original Research Articles

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 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(12): 416-424
DOI: https://doi.org/10.20546/ijcmas.2020.912.052


Site Specific Nutrient Management of Cassava Improves Soil Quality
Madhavi Baiju1*, S. Sreelekha1, R. Shiny2, S. S. Veena2 and G. Byju2
1National College, Manacaud, Thiruvananthapuram, Kerala, India
2ICAR-Central Tuber Crops Research Institute, Sreekariyam, Thiruvananthapuram, Kerala, India
*Corresponding author
Abstract:

Cassava (Manihot esculenta Crantz) is an important staple crop for the rural population worldwide and is used for many other purposes too, especially as an industrial crop. Sustainable intensification of cassava has become necessary as it has now an ever-increasing role as a food security crop in the changing climate scenario. In this context, development of site specific nutrient management (SSNM) of cassava based on the modified QUEFTS model assumes greater importance and the performance of SSNM with regard to its influence on soil quality needs to be assessed. Hence a study was conducted in a 12 year continuous SSNM experimental field to study its effect on soil quality. Soil pH, labile carbon, available calcium and available zinc were found to significantly contribute to soil quality index (SQI). Significantly higher SQI was observed in SSNM plot (0.85) followed by present recommendation (PR) plot (0.81), which were on par and significantly lower SQI values were observed in nutrient omission plots with the lowest value being recorded in P omission plot (0.62). The contribution of the minimum data set (MDS) indicators (scored and weighed) to the overall index value in each treatment showed that labile carbon contributed the maximum in all treatments studied. The per cent contribution of labile carbon to SQI was 28 per cent in SSNM plot. The study showed an improvement in soil quality in SSNM plot compared to present recommendation plot.


Keywords: Cassava, Site specific nutrient management, Minimum data set, Soil quality index
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How to cite this article:

Madhavi Baiju, S. Sreelekha, R. Shiny, S. S. Veena and Byju, G. 2020. Site Specific Nutrient Management of Cassava Improves Soil Quality.Int.J.Curr.Microbiol.App.Sci. 9(12): 416-424. doi: https://doi.org/10.20546/ijcmas.2020.912.052