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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 (2017)
[Effective from January 1, 2017]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
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 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(11): 845-854
DOI: https://doi.org/10.20546/ijcmas.2018.711.100


Contingent Crop Planning for Proactive Monsoon Management under Rainfed Regions
J.K. Balyan*, Anil Kumar Kothari and Ramavtar
College of Agriculture, Bhilwara, Maharana Pratap University of Agriculture and Technology, Udaipur, India
*Corresponding author
Abstract:

For adopting a particular cropping plan, the time of onset of monsoon is the most important single parameter but it has not been considered in most of the studies conducted for crop planning under rainfed regions. Rainfall data of Bhilwara district in Rajasthan state for a period of 57 years were analysed from two approaches viz.; ‘Meteorological’ approach and ‘Onset of monsoon’ approach. The ‘Meteorological’ approach is a conventional approach wherein the information for crop growth period is assumed based on normal week of onset of monsoon and also provides a single set of information which leads to a single set of cropping plan irrespective of time of onset of monsoon. On the contrary in the ‘Onset of monsoon’ approach, the rainfall data are arranged by considering onset of monsoon as datum and also grouped for different weeks of onset of monsoon. The results reveal considerable difference in rainfall characteristics with respect to length of growing period, water surplus/ deficit and probability of intervening dry spells due to these approaches. The ‘Onset of monsoon’ approach is more rational as it precisely describes the actual crop environment and provides information for varying onsets of monsoon as compared to ‘Meteorological’ approach. The results of water balance study reveals an increase of water deficit due to early and delay in onset (31st SMW) as compared to normal onset of monsoon (27th SMW), whereas an decrease of 50.2 per cent in water surplus and a decrease of 55.8 per cent in water surplus was recorded due to late and early onset of monsoon as compared to normal onset of monsoon. The correlation studies also reveal that onset of monsoon is inversely correlated (-0.91) with duration of rainy season while positively correlated (0.83) with water deficit. Thus, the ‘onset of monsoon’ approach should be considered for crop planning under rainfed regions to harness more profit per unit of rainfall.


Keywords: Rainfed, Evapotranspiration, Unimodal, Dryland, Contingent
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How to cite this article:

Balyan, J.K., Anil Kumar Kothari and Ramavtar. 2018. Contingent Crop Planning for Proactive Monsoon Management under Rainfed Regions.Int.J.Curr.Microbiol.App.Sci. 7(11): 845-854. doi: https://doi.org/10.20546/ijcmas.2018.711.100