| Article Details : |
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| | | Article Name : | | | Enhancement of Water Use Efficiency of Wheat
Utilizing Deficit Irrigation Concept
| | Author Name : | | | ADNAN SHBAR FALIH
ALAA ALI HUSSEIN
TARAQ L. RASHEED
IBRAHIM B. RAZAQ | | Publisher : | | | Bridge Center | | Article URL : |  | | | Abstract : | | | Field experiment was conducted during the winter season of
2013 at Agricultural experimental station of soil and water Resources
center in Babylon Governorate- Iraq. Main objective of this study was
to water use efficiency of wheat depending on deficit irrigation concept.
Study was conducted as a field experiment of Randomized Complete
Block Design ( R.C.B.D) with three replicates. Treatments are five
irrigation practices of different volume of irrigation water for wheat
crop. These are: T1: full irrigation water and other four deficit
irrigation treatment each of 30% reduction of full irrigation water
delivered at tillering growth stage (T2),Elongation T3, flowering (T4)
and maturity (T5 ). Field soil moisture content was measured using
Diviner – 2000 sensor for 0-0.3 meter depth. The results showed that
the full irrigation treatment showed the highest consumptives use with
440 mm., however, was reduced to 308, 312, and 311mm for deficit
irrigation treatments at Tillering, Elongation, Flowering and Maturity
stages, respectively. These reduction in used water was, in fact,
reflected in 24.5, 11.5, 19.4 and 20.6% increase in water use efficiency
at Tillering, Elongation, Flowering and Maturity stage compared to
full irrigation practice, respectively, Grain yield of wheat was 4765
Kg.ha-1 which was the highest under the full irrigation system. Lowest
grain yield was 3821 Kg.ha-1. was the lowest under the deficit
irrigation at Elongation stage. | | Keywords : | | | Crop stage, grain yield, full irrigation, Diviner, moisture
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