|Author:||Yazar, A. ; Gencel, B. ; Sezen, M. S. ; Hamdy, A.|
|Book Group Author:||NA|
Evaluation of maize [Zea mays] yield, yield loss, salinity profile and water use efficiency in relation to the salinity of trickle-irrigation water was carried out on a clay-textured soil in the Mediterranean Region of Turkey. Waters of 0.5, 3, 6, 9, and 12 dS/m were tested incorporating applications of 10% leaching fraction after flowering. The amount of water applied to each treatment plot was based on cumulative evaporation from Class A pan within the irrigation interval of 7 days. Results revealed no significant difference in grain yields among the treatments. Generally, profile salt concentration increased with increasing salinity of irrigation water used. Higher salt concentration in the top layer was due to higher evaporation rate from the wetted surface. The general salt distribution profile under saline irrigation water treatments followed the typical bulb-shaped water distribution pattern under trickle irrigation, with maximum ECe occurring at the soil surface. Applying a leaching fraction of 10% after flowering did not affect the salinity profile significantly. There were no significant differences in dry matter production levels, water use efficiency (WUE), 1000-grain weight, and harvest index (HI) among the salinity treatments. It is concluded that saline irrigation water may be used for trickle irrigation of maize under Mediterranean climatic conditions.
|Journal:||Transactions of the 19th International Congress on Irrigationand Drainage, Beijing, China, 2005. Vol 1B: Water quality, salinitymanagement|
clay soils, crop yield, evaporation, irrigation water,maize, saline water, salinity, soil types, trickle irrigation, water useefficiency, Mediterranean region, Turkey, Zea mays, Zea, Poaceae,Cyperales, monocotyledons, angiosperms, Spermatophyta, plants,eukaryotes, West Asia, Asia, Mediterranean Region, Developing Countries,OECD Countries, corn, Mediterranean countries, salt water, Soil WaterManagement (Irrigation and Drainage) (JJ800) (Revised June 2002)[formerly Soil Water Management], Field Crops (FF005) (New March 2000),Plant Production (FF100), Plant Water Relations (FF062)