Effect of sprinkler irrigation and soil surface management on soil water storage and crop yield in soils with surface crust formation
1996
Akasheh, O.Z.
The objectives of this field experiment (1993/94) were to study the effect of different sprinkler irrigation scheduling and soil surface management on soil water storage and barley yield. Split plot in randomized block design was applied with two factors: soil surface management and irrigation management. Soil surface management was used as a main factor. It consisted of four forms: furrow, basin, furrow within basin, and control. Irrigation management was used as submain factor. Irrigation water was applied through three different irrigation practices: one irrigation set, two irrigation sets, and three irrigation sets applying the same amount of water. Soil water storage was improved significantly by 200 %, 90 % relative increase by applying furrow, basin soil surface treatments, respectively compared with control treatment. Frequent irrigation "two irrigation sets" and "three irrigation sets" increased soil water storage. Furrow soil surface treatments produced significantly more barley grain yield and barley emergence percentage compared with basin and control treatments, while furrow and basin increased significantly straw yield, plant height, 1000 seeds mass compared with control treatment. The relative increase in barley grain yield in furrow soil surface treatment compared to basin and control were 32 % and 20 %, respectively. Barley water consumptive use was directly proportional to barley grain yield. Therefore, in furrow, furrow within basin, and basin treatments, barley consumptive uses were significantly higher then control treatment, while water use efficiency was not significantly different among all treatments. Results indicated generally that furrow soil surface treatment with frequent irrigation is the best combination recommended to be used in soils with surface crust formation
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