|Author:||El-Tantawy, M. T. ; Kamal, S. M. ; Wasef, E.|
|Book Group Author:||NA|
Field experiments were carried out on 15 August 2001 at El-Bustan Research Station, Nobaria District, Abdel-Monem Reyad Village (Egypt) to evaluate the potential of using surface and subsurface drip irrigation (GR. lateral). Lines were installed at two depths of 15 and 30 cm to irrigate squash under the conditions of sandy soil. There were two treatments (daily and three days intervals fertigation). The fertilizers used for squash were ammonium sulfate (33.5%), potassium sulfate (48.0%) and phosphoric acid (85.0%). Results showed the superiority of sub-surface drip at a depth of 15 cm in case of daily fertigation over surface and sub-surface drip systems installed at 30 cm depth in case of three days intervals fertigation. The soil moisture distribution as percentage ratio from field capacity was after irrigation with two hours 95.8, 93.8, 90.8% and before irrigation with two hours 85.4, 83.3, 76.5% in case of daily fertigation. Under sandy soil conditions, the good water and nutrient management for plant growth could be achieved by using subsurface drip irrigation systems (daily fertigation at depth 15 cm) over other treatments. Crop yield increased in daily fertigation of subsurface drip irrigation over the other treatments with ratio 7.55 to 14.88%. Water use efficiency increased in daily fertigation of subsurface drip irrigation over the other treatments with ratio 8.26 to 15.1%.
|Pages:||1947 - 1962|
|Journal:||Egyptian Journal of Agricultural Research|
ammonium sulfate, crop yield, fertigation, irrigationscheduling, irrigation systems, irrigation water, phosphoric acid,potassium sulfate, sandy soils, soil management, soil types, soil water,soil water content, squashes, subsurface irrigation, surface irrigation,trickle irrigation, water management, water requirements, water supply,water use efficiency, Egypt, Cucurbita, North Africa, Africa,Mediterranean Region, Middle East, Developing Countries, Cucurbitaceae,Violales, dicotyledons, angiosperms, Spermatophyta, plants,Horticultural Crops (FF003) (New March 2000), Plant Water Relations(FF062), Plant Production (FF100), Soil Chemistry and Mineralogy(JJ200), Soil Physics (JJ300), Fertilizers and other Amendments (JJ700),Soil Water Management (Irrigation and Drainage) (JJ800) (Revised June2002) [formerly Soil Water Management]