DSpace  
 

Research Archive at OUSL >
OUSL Journal of Engineering and Technology (JET) >
JET Volume 06 No 02 (2018) >
Contents page >

Please use this identifier to cite or link to this item: http://digital.lib.ou.ac.lk/docs/handle/701300122/1612

Title: Identification of Suitable Irrigation Interval for Paddy Based on Growth and Yield to Adapt Water Shortage Problem in Ampara District of Sri Lanka
Authors: Dilshad, H.M.M .
De Silva, C.S.
Keywords: Rice
Irrigation interval
Grain yield
Drought
Cost of irrigation
Variety
Issue Date: 16-Dec-2001
Abstract: Field trials were conducted at Rice Research Station, Sammanthurai during “Yala” season 2017 to evaluate the effects of irrigation intervals (7, 10 and 14 days) ongrowth and yield parameters of rice varieties Bg 250 (Short duration) and Bg 94.1 (Long duration) in order to cope with water shortage problem in irrigation schemein th study area.The trial was performed as pot experients as it was difficult control irrigation intervals in the Field. Experiment was designed as factorial treatment in randomized complete blocks design with six treatments and three replicates. The germinated seeds were established in the 40 cm diameter and 30 cm depth of 18 pots. The results showed that the Bg 250 produced 2967.30 ± 90.92 kg/ha which is 27% higher yield than Bg 94-1with the application of water at 7 days irrigation interval. The Bg 250 produced 2589.50 ± 350.83 kg/ha (18% higher yield) grain yield with the 10 days irrigation interval. Cost of irrigation was calculated as labour cost for irrigation arrangement per day and the cost of irrigation.Bg 250 was 17.6 % and 16.7% lower than the cost of Bg 94-1 when water was applied at 7 days and 10 days irrigationinterval, respectively. The grain yield was significantly different between the rice varieties Bg 250 and Bg 94-1 where the Bg 250 was produced higher grain yield in all three irrigation intervals. Therefore Bg 250 can be recommended for “Yala” season in Ampara District with the application of water at irrigation intervals 7 days and 10 days interval to deal with the shortage in water that is being faced currently in Ampara district farmers now and in the foreseeable future.
URI: http://digital.lib.ou.ac.lk/docs/handle/701300122/1612
Appears in Collections:Contents page

Files in This Item:

File Description SizeFormat
Paper 2- V6N2-EG.pdf412.13 kBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! Copyright@Harsha Balasooriya(hbala AT ou.ac.lk) ® 2010 The Open University of Sri Lanka  - Feedback