International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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Original Research Articles                      Volume : 8, Issue:4, April, 2019

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : /
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(4): 585-593

Impact of Conservation Agriculture on Vertical Distribution of DTPA-Zinc and Organic Carbon of Soil
Dhananjay Kumar1, Sunil Kumar1*, Ragini Kumari1, B.K. Vimal1, Hena Parveen1, Sanjay Kumar2 and Priyanka3
1Department of Soil Science and Agricultural Chemistry
2Department of Agronomy
3Department of Extension Education, No. 583/2019, Bihar Agricultural University, Sabour, Bhagalpur 813210 (Bihar), India
*Corresponding author

A long-term field experiment was carried out in alluvial soil with conservation agriculture practices like Zero tillage, Permanent bed and Conventional tillage to see the impact on vertical distribution of DTPA-Zn and Organic carbon of soil under rice based cropping systems. After completion of 5th cycle of experiment (2016), soil samples were collected from each plot and analysis processes were executed. The results were revealed that vertical distribution of DTPA-Zn and Organic carbon content, decreased with increases of soil depth. Maximum DTPA-Zn (2.02 mg/kg) and Organic carbon content (0.61%) of soil was recorded in surface layer (0-15 cm depth) under the treatment Zero tillage which was statistically similar to permanent bed and it was decreased to 0.49 mg/kg and 0.17% respectively due to conventional tillage. Whereas, Rice-Lentil cropping system was also significantly restrict the downward movement of DTPA-Zn and Organic carbon content through the soil profile as compare to Rice-Wheat and Rime-Maize. The DTPA-Zn showed positive correlation with Organic carbon content, indicating that retention of crop residue and minimum disturbance of surface soil under conservation agriculture increases the organic matter content that provides chelating agents for complexation of native Zn. In conclusion, zero tillage and permanent bed practices significantly restrict the movement of DTPA-Zn and Organic carbon to the lower depth of soil as compare to conventional tillage.

Keywords: Zinc, Organic carbon, Zero tillage, Permanent bed, Vertical distribution

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How to cite this article:

Dhananjay Kumar, Sunil Kumar, Ragini Kumari, B.K. Vimal, Hena Parveen Sanjay Kumar and Priyanka. 2019. Impact of Conservation Agriculture on Vertical Distribution of DTPA-Zinc and Organic Carbon of Soil.Int.J.Curr.Microbiol.App.Sci. 8(4): 585-593. doi:
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