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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 (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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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(7): 1984-1992
DOI: https://doi.org/10.20546/ijcmas.2020.907.227


Nitrogen Dynamics in Soil as Influenced by Split Application of Organic Manures and Fertilizers under Sugarcane Grown on Calcareous Entisol of Bihar
Abhishek Ranjan1*, C. K. Jha1, S. K. Thakur1, Shubham Singh2, Vivek Kumar1 and Munmun Majhi3
1Department of Soil Science, RPCAU, Pusa (Samastipur), Bihar-848125, India
2Department of Soil Science, SNRM, CPGS-AS (CAU, Imphal), Umiam, Meghalaya-793103, India
3Department of Soil Science and Agricultural Chemistry, UBKV, Cooch Behar, West Bengal-736165, India
*Corresponding author
Abstract:

Effect of nutrient management modules on nitrogen (N) dynamics in sugarcane grown on a Calcareous entisol was studied during 2018-19. The experiment comprised of different levels of NPK fertilizers alone and in combination with Biocompost, Neem Cake Powder, Trichoderma inoculated trash and Rhizobium inoculated green gram applied at two different crop growth stage (Planting and Earthing Up) was laid out in RBD with three replications. Application of 25% N as inorganic fertilizer + 75% N through organics (Biocompost at planting and Neem cake at earthing up stage split equally) + Azotobacter and PSB significantly increased the organic N fractions viz., hydrolysable NH4+-N (108.3 mg kg-1), amino acid-N (111.2 mg kg-1), Hexoseamine-N (36 mg kg-1) and Unidentified-N (83.9 mg kg-1). The mineral N (NO3--N + exchangeable NH4+-N) content (105.6 mg kg-1) was significantly increased with the application of 50% N as inorganic fertilizer + 50% N through organics (Biocompost at planting and Neem cake at earthing up stage split equally) + Azotobacter and PSB. The highest contribution of inorganic was 17.65% in treatment receiving 50:50 ratio of inorganic and organic sources of nutrients whereas organic N fractions contribution to total N was highest in treatment receiving 25:75 ratio of inorganic and organic sources of nutrients and comparatively lower contribution of these fractions was recorded in control treatment. The mineralizable N was significantly correlated with all fractions of N, except with hydrolysable unidentified-N and non-hydrolysable N.


Keywords: Amino acid-N, Hexoseamine-N, Hydrolysable NH4+-N, NO3--N, Exchangeable NH4+-N
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How to cite this article:

Abhishek Ranjan, C. K. Jha, S. K. Thakur, Shubham Singh, Vivek Kumar and Munmun Majhi. 2020. Nitrogen Dynamics in Soil as Influenced by Split Application of Organic Manures and Fertilizers under Sugarcane Grown on Calcareous Entisol of Bihar.Int.J.Curr.Microbiol.App.Sci. 9(7): 1984-1992. doi: https://doi.org/10.20546/ijcmas.2020.907.227