Follow
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
National Academy of Agricultural Sciences (NAAS) : NAAS Score: *5.38 (2020) [Effective from January 1, 2020]For more details click here

Login as a Reviewer

Indexed in



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

See Guidelines to Authors
Current Issues

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.2017.6(9): 3784-3789
DOI: https://doi.org/10.20546/ijcmas.2017.609.467


Land Levelling and Its Temporal Variability under Different Levelling, Cultivation Practices and Irrigation Methods for Paddy
Ravindra Yaligar*, P. Balakrishnan, U. Satishkumar, P. S. Kanannavar, A. S. Halepyati, M. L. Jat and N. L. Rajesh
Department of Soil and Water Engineering, College of Agricultural Engineering, University of Agricultural Sciences (UAS) Raichur, Karnataka, India
*Corresponding author
Abstract:

The field experiments were conducted in the farmers field under the jurisdiction of the University of Agricultural Sciences (UAS) Raichur during the kharif 2015 and kharif 2016 using randomized complete block design with 7 treatments to determine the effects Land levelling and its temporal variability under different levelling, cultivation practices and irrigation methods for paddy. Contour analysis showed that the number of contours drawn with Surfer Software for 2-cm contour interval for the plots after laser levelling were reduced considerably and the contours were almost parallel in laser land levelling cases. The levelling indices (LI) and range of grid elevations were very small in these cases indicating very high quality and precision of land levelling works with least deterioration of topographic conditions compared to conventional levelling. Whereas, these values were more for conventional levelling due to more number and irregular pattern of contour lines, which revealed poor quality and precision of land levelling as it depended on driver’s judgement. Smaller values of LI indicated higher accuracy of grading in laser levelled fields with evenly levelled topography of land and uniform distribution of water and its storage. There were changes in topographic conditions, levelling quality and precision in terms of levelling indices and range of grid elevations, over the period of study due to the influence of cultivation practices, different land levelling, irrigation methods and climatic conditions. These changes were less as indicated by 75.40 and 87.25 per cent reduction in LI in case of laser levelling methods as compared to 3.27 and 1.73 per cent increase in LI in conventional levelling methods.


Keywords: Direct seeded rice (DSR), Laser levelling, transplanted rice (TPR), Levelling Index (LI)
Download this article as Download

How to cite this article:

Ravindra Yaligar, P. Balakrishnan, U. Satishkumar, P. S. Kanannavar, A. S. Halepyati, M. L. Jat and Rajesh N. L. 2017. Land Levelling and Its Temporal Variability under Different Levelling, Cultivation Practices and Irrigation Methods for Paddy.Int.J.Curr.Microbiol.App.Sci. 6(9): 3784-3789. doi: https://doi.org/10.20546/ijcmas.2017.609.467