A study of water requirement of sugarcane (Saccharum officinarum L.) in gangetic plains
DOI:
https://doi.org/10.54302/mausam.v55i2.1137Keywords:
Evapotranspiration, Water use efficiency, Crop coefficient, Irrigation schedulingAbstract
Agro meteorological aspects of sugarcane (variety CO-1148) at Lucknow has been studied in this paper. A data set of 10 years, whenever this variety was grown between 1980-1996 was availed for this purpose. The crop phenology was divided into four phases i.e., germination, tillering, vegetative growth and maturity. Evapotranspirative demands were obtained and discussed, besides the crop coefficients, irrigation intervals and the amount of additional water needed by the crop were also computed.
The study revealed that vegetative growth stage is the most important phase, when evapotranspirative demand is maximum. The water use efficiency also attains the peak value in this phase. An interval of 7-days with about 35mm of water during germination and a fortnight interval with nearly 70mm of water in the rest of the period is needed by sugarcane for good growth and high yields.
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