Conjunctive use of rainfall and irrigation for wheat crop in North Nile Delta | ||||
| Annals of Agricultural Science, Moshtohor | ||||
| Article 18, Volume 56, Issue 2, June 2018, Page 447-458 PDF (791.46 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/assjm.2018.116712 | ||||
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| Abstract | ||||
| To find out the impact of rainfall and irrigation on wheat crop and its water functions, a field trial was carried out at Sakha Agricultural Research Station, North Nile Delta during the two seasons 2015/16 and 2016/17. Treatment A which consists of rainfall only has the lowest applied water (Wa), consumption use (CU) and crop yield, The traditional irrigation treatment E consists of no missing irrigation at any growth stage. Average contribution of rainfall in water applied was52.5, 32.4, 32.8, 32.3 and 27.1% for treatments A, B ( skipping irrigation during vegetation), C (skipping irrigation during flowering stage), D (missing irrigation during milking stage) and E (no skipping irrigation), respectively. Skipping irrigation during vegetation stage caused a slight decrease in wheat yield. In comparison with the traditional treatment, mean water savings were 48.5, 16.5, 17.4 and 16.3 %, while the decrease in crop yield was 43.4, 21.2, 11.2 and 5.9 % for treatments A, B, C and D, respectively. Most of yield components showed similar trends with those of applied water. | ||||
| Keywords | ||||
| conjunction use of rainfall and irrigation; water productivity; productivity of applied water and water saving | ||||
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