Aerodynamic properties of green gram sown in different environments in Indo- Gangetic Plains of West Bengal

Authors

  • S. BASU Department of Agronomy, Institute of Agricultural Sciences, Siksha ‘O’ Anusandhan University, Bhubaneswar, India.
  • PRAMITI K. CHAKRABORTY Department of Agricultural Meteorology and Physics, Bidhan Chandra KrishiViswavidyalaya, Mohanpur - 741252, West Bengal
  • R. NATH Department of Agronomy, BCKV, West Bengal, India
  • P.K. CHAKRABORTY Department of Agricultural Meteorology and Physics, Bidhan Chandra KrishiViswavidyalaya, Mohanpur - 741252, West Bengal

DOI:

https://doi.org/10.54386/jam.v20i2.522

Keywords:

Dates of sowing, drag coefficient, green gram, roughness length, zero-plane displacement

Abstract

Field experiments were conducted on green gram during spring-summer seasons of 2011 and 2012 with four dates of sowing and five varieties arranged in a strip-plot design to study the aerodynamic characteristics of green gram at BCKV, Kalyani, West Bengal. Micro-cup anemometers were placed at 0.5, 1.0, 1.5, 2.0 and 2.5 m above the crop canopy on a wooden mast. The zero-plane displacement (d), roughness length (Z0) and drag coefficient (Cd) were found to increase with crop age but the effect of dates of sowing was not prominent except at the final stage of growth. For a LAI value of 1.5, “d” values was 0.254 m and the “Cd” value was 0.015. Both the “Cd” and “d” increased with plant height and LAI. The “d” and “Z0” had significant positive correlation with the total dry matter and crop growth rate irrespective of dates of sowing.

Downloads

Published

01-06-2018

How to Cite

S. BASU, PRAMITI K. CHAKRABORTY, R. NATH, & P.K. CHAKRABORTY. (2018). Aerodynamic properties of green gram sown in different environments in Indo- Gangetic Plains of West Bengal. Journal of Agrometeorology, 20(2), 122–125. https://doi.org/10.54386/jam.v20i2.522

Issue

Vol. 20 No. 2 (2018): June

Section

Research Paper

License

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

This is a human-readable summary of (and not a substitute for) the license. Disclaimer.

You are free to:

Share — copy and redistribute the material in any medium or format

Adapt — remix, transform, and build upon the material

The licensor cannot revoke these freedoms as long as you follow the license terms.

    Under the following terms:

    Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.

    NonCommercial — You may not use the material for commercial purposes.

    ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.

    No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

    Notices:

    You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation.

    No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.