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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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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(7): 1518-1523
DOI: https://doi.org/10.20546/ijcmas.2020.907.175


Optimization of Potassium Fertilization for Maize (Zea mays L.) in New Alluvial Zone of West Bengal
Bappa Mandal1*, Sonali Biswas2, Srabani Debnath2, Abhijit saha3, Susmita Moi1 and Gopal Dutta4
1Department of Agronomy, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur - 741252, Nadia, West Bengal, India
2AICRP on Maize, Directorate of Research, BCKV, Nadia, West Bengal, India
3College of Agriculture, Lembucherra, West Tripura, Tripura, India
4Department of Agricultural Meteorology and Physics, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur - 741252, Nadia, West Bengal, India
*Corresponding author
Abstract:

A field experiment was conducted during kharif season of 2018 at District Seed Farm of Bidhan Chandra Krishi Viswavidyalaya, Kalyani, Nadia, and West Bengal, India on sandy clay loam soil having neutral in reaction with the objective of optimization of potassium fertilization for maize in new alluvial zone of West Bengal. The experiment was laid out in Randomized Block Design having four replications with six treatments (T) comprising different potassium levels as 0 (T1), 30 (T2), 60 (T3), 90 (T4), 120 (T5) and 150 (T6) kg K2O ha-1 with recommended dose of nitrogen and phosphorus (120:60 N: P2O5 kg ha-1). Application of 150 kg K2O ha-1 resulted in higher plant height (304.23 cm), LAI (6.71) grain yield (7.86 t/ha), stover yield (9.12 t/ha), net return (Rs. 59019.33/-) which were statistically at par with 120 kg K2O ha-1 treated plots and 90 kg K2O ha-1 treated plots. Highest B: C (2.11) ratio was observed in T5 treatment which was statistically at par with T6 treatment (2.10) and T4 treatment (2.04). The results showed that increase in all growth, yield, net return and B: C ratio of crop was more pronounced up to 90 kg K2O ha-1, but there was no significant increase in all growth, yield, net return and B: C ratio of crop when potash level was increased above 90 kg K2O ha-1. So, it could be concluded that application of 90 kg K2O ha-1 is the optimum level of potassium for maize to obtain higher yield and profitability.


Keywords: Maize, Potassium, Yield, Net return and B: C ratio
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How to cite this article:

Bappa Mandal, Sonali Biswas, Srabani Debnath, Abhijit saha, Susmita Moi and Gopal Dutta 2020. Optimization of Potassium Fertilization for Maize (Zea mays L.) in New Alluvial Zone of West Bengal.Int.J.Curr.Microbiol.App.Sci. 9(7): 1518-1523. doi: https://doi.org/10.20546/ijcmas.2020.907.175