Mutual effects by ground surface slope and length of irrigation run on wheat grain yield, consumptive use, irrigation application efficiency, soil erosion and moisture extraction in Sakha clayey soils
Bakr, H.M.A.; Abdelhafez, S.A.
Alexandria Journal of Agricultural Research 25(3): 501-506
ISSN/ISBN: 0044-7250 Accession: 000702605
Over 2 growing seasons in 1971-3 at Sakha Agricultural Research Station, the effects of 50, 100, 150 or 200 m irrigation run lengths on ground surface slopes of 0.1 or 0.2% on the grain yield of wheat Giza 155 were studied. The highest yields were 18.39, 17.23 and 15.35 ardab/feddan with 100, 150 and 200 m irrigation run lengths on slopes of 0.1, 0.2 and 0.2%, resp. Irrigation efficiency increased from 43.8 to 65.6% with decrease from 200 to 50 m in irrigation run length and with increase in steepness of the slope. Approx. 82% of the stored water utilized by the plants was tapped from the surface 30 cm soil layer.