Effect Of Subsurface Amendments And Drip
Irrigation On Tomato Growth
Author(s)
A. M. Al-Omran, A. S. Sheta, A. M. Falatah & A. R. Al-Harbi
Abstract
The management that increases yield and reduce excessive amount of water is a
priority for agriculture development in arid and semi-arid regions. This research
investigated the effectiveness of previously subsurface placement (25 cm) of the
clay deposits and drip irrigation on tomato yield, water use efficiency (WUE),
soil moisture and salt distribution in the root zone. A calcareous sandy soil had a
subsurface amendments and surface and subsurface drip irrigation applied for
one year and planted with squash crop prior to seedling tomato. The field
experimental site, and randomization, and consequently location of each
treatment, replication was the same for the tomato experiment. The clay deposits
were collected from western (Khulays) and central (Dhruma and Rawdat)
regions of Saudi Arabia. Surface and subsurface drip irrigation were used at rates
ranging from 234 mm (T1) to 564.5 mm (T4). The results clearly reveal that
nutrients levels in all the experimental plots were quite variable depending on the
amendments type, and rate of application, and the irrigation systems. Results
show that tomato fruit yield and WUE were significantly affected by
amendments rates and type and also by irrigation amounts and system. The soil
moisture contents of subsurface drip irrigated layer increased dramatically, while
salts accumulated at the surface away from the emitters of subsurface drip
irrigation.
Keywords: drip irrigation, clay deposit, tomato yield, sandy calcareous soils,
water use efficiency.
Keywords
drip irrigation, clay deposit, tomato yield, sandy calcareous soils,
water use efficiency.
Related Book
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