WATER PRODUCTIVITY IN SUGARCANE UNDER SUBSURFACE DRIP IRRIGATION

S.D. BHINGARDEVE¹*, D.D. PAWAR², S.K. DINGRE³, R.R. HASURE^4
1Department of Extension Education, College of Agriculture, Kolhapur, 416004, Mahatma Phule Krishi Vidyapeeth, Rahuri, Ahmednagar, Maharashtra 413722, India
²Department of Irrigation Water Management, Mahatma Phule Krishi Vidyapeeth, Rahuri, Ahmednagar, Maharashtra 413722, India
³Department of Irrigation Water Management, Mahatma Phule Krishi Vidyapeeth, Rahuri, Ahmednagar, Maharashtra 413722, India
⁴Department of Irrigation Water Management, Mahatma Phule Krishi Vidyapeeth, Rahuri, Ahmednagar, Maharashtra 413722, India
* Corresponding Author : sudabhi@yahoo.co.in

Received : 10-05-2017     Accepted : 01-06-2017     Published : 24-06-2017
Volume : 9     Issue : 29       Pages : 4377 - 4381
Int J Agr Sci 9.29 (2017):4377-4381

Keywords : Mulch, Irrigation regimes, Irrigation intervals, WUE and Water productivity
Conflict of Interest : None declared
Acknowledgements/Funding : Author has thankful to all advisory committee members Prof. J.B. Shinde, Associate Professor of Agronomy, Dr. C.A. Nimbalkar, Associate Professor of Statistics and Dr. K.D. Kale, Asstt. Professor of Soil Science, Mahatma Phule Krishi Vidyapeeth, Rahuri, Ahmednagar, Maharashtra 413722 for their valuable guidance
Author Contribution : All author equally contributed; This was the Ph.D Research by myself under guidance of Dr. D.D. Pawar (Research Guide), Er. S. K.Dingare and Dr. R.R. Hasure (Member, Advisory committee), Mahatma Phule Krishi Vidyapeeth, Rahuri, Ahmednagar, Maharashtra 413

A field experiment was conducted at Post Graduate Farm, Mahatma Phule Krishi Vidyapeeth, Rahuri (M.S.) India to investigate comprehensive effect of mulch, irrigation regimes and irrigation intervals under subsurface drip on water productivity of sugarcane during the years 2014-15 and 2015-16. The results revealed that the total water requirement of suru and ratoon sugarcane under subsurface drip was varied from 590.3 to 980.6 mm. The water saving in subsurface drip (SSDI) was 13.6 to 62.9% in 80% ETc irrigation regime as compared to conventional method of irrigation. The water requirement in 2 days interval under SSDI was lower than 3 and 5 days irrigation regimes intervals. More water was saved in ratoon cane than plant cane. The agronomic and economic water productivities were increased with decreased irrigation regimes and increased irrigation intervals. It was also observed that additional area that can be brought under irrigation due to water saving in SSDI was varied from 0.14- 0.48 ha over surface drip (SDI) and 0.62- 0.77 ha over surface irrigation. The same water quantity of water was applied for mulch and no-mulch treatment. The maximum cane yield of 148.4 t ha-1 was observed in 80% irrigation regime of SSDI which was at par with SDI with 100% ETc water. Similarly, the mean yield in 60% ETc and 3 days irrigation regimes were remained at par with 80% ETc and 2 days irrigation intervals.

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