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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 2018 - IJCMAS--ICV 2018: 95.39 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 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
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.2018.7(9): 469-486
DOI: https://doi.org/10.20546/ijcmas.2018.709.057


Effect of Long-Term Use of Inorganic Fertilizers, Organic Manures and Their Combination on Soil Properties and Enzyme Activity in Rice-Rice Cropping System
N. Goutami, Ch. Sujani Rao, A. Sireesha, Ch. Pulla Rao and A. Vijaya Gopal
Department of Soil Science and Agricultural Chemistry, Agricultural College, Bapatla-522 101, Andhra Pradesh, India
*Corresponding author
Abstract:

A field experiment entitled “Carbon sequestration and soil health under long term soil fertility management in rice-rice cropping system" was carried out under field conditions during kharif and rabi seasons of 2016-2017 and 2017- 2018 at Andhra Pradesh Rice Research Institute and Regional Agricultural Research Station, Maruteru, West Godavari district in the ongoing All India Coordinated Research Project on Long Term Fertilizer Experiment Project. The results indicated that at initial, tillering, panicle initiation and at harvest stage, significantly the highest available nitrogen, phosphorus, potassium and micronutrients in soil were recorded with application of 100 % NPK + ZnSO4 +FYM (T7). The treatments T9 (50 % NPK + 50 % N through green manures), T10 (50 % NPK + 50 % N through FYM) and T11 (50 % NPK + 25 % N through FYM + 25 % N through green manures) were on par with each other in all four seasons of study. The highest enzyme activity was observed with application of 100 % NPK + ZnSO4 +FYM (T7) (both Kharif and Rabi) which was significantly superior over remaining treatments in (Kharif, 2016 and Rabi, 2017). The application of zinc did not show any significant effect on enzyme activity.


Keywords: Organic manures, Inorganics, Urease, Available nutrients
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How to cite this article:

Goutami, N., Ch. Sujani Rao, A. Sireesha, Ch. Pulla Rao and Vijaya Gopal, A. 2018. Effect of Long-Term Use of Inorganic Fertilizers, Organic Manures and Their Combination on Soil Properties and Enzyme Activity in Rice-Rice Cropping System.Int.J.Curr.Microbiol.App.Sci. 7(9): 469-486. doi: https://doi.org/10.20546/ijcmas.2018.709.057