PEANUT CROP RESPONSE TO NON-UNIFORMITY OF IRRIGATION APPLICATION UNDER SPRINKLER SYSTEM PERFORMANCE

Amer, Kamal Hossny; Gomaa, Ahmed Hassan; Farag, Ehab Abd Allah

doi:10.21608/mjae.2010.104811

PEANUT CROP RESPONSE TO NON-UNIFORMITY OF IRRIGATION APPLICATION UNDER SPRINKLER SYSTEM PERFORMANCE

Document Type : Original Article

Authors

¹ Asst. Prof. of Ag. Eng. Dept., Fac. of Ag., Menofia University, Egypt.

² Graduate student in Ag. Eng. Dept., Fac. of Agr., Menofia University, Egypt.

10.21608/mjae.2010.104811

Abstract

Experimental study was conducted for peanut (Arachis hypogaea L.) in sandy soil, which ‎has 1.57 g/cm³ average bulk density in 1.2 m soil depth and 25.2 ‎cm/h saturated hydraulic conductivity, located at an arid site in ‎northern Egypt (Moderiat El Tahreer, Behara Governorate, Egypt) for one season ‎started on 19 July 2008 and ended on 30 October 2008. A Complete Randomized Block Design was experimentally accomplished for three sprinkler irrigation layouts as square, rectangular, ‎and triangular, three overlapping percentages as 100, ‎‎80, and 60%, and three irrigation levels as 0.6, 0.8, ‎and 1.0 from crop evapotranspiration (ET). A mean ‎of application rate in mm/h was recorded for individual sprinkler and ‎increased by increasing water pressure due to increasing discharge. It ‎was decreased by increasing sprinkler pattern diameter. On the contrary, ‎discharge was unaffected by trajectory angle. But, mean of application ‎rate was increased by decreasing trajectory angle due to decreasing of ‎sprinkler pattern diameter.‎ 1.0ET irrigation treatment achieved ‎‎ 3.908, 3.703, and 3.308 Mg/ha maximum peanut yields in square layout, 4.145, 3.869, and 3.559 Mg/ha in triangular layout, and 3.970, 3.788, and 3.485 Mg/ha in ‎rectangular layout for 100, ‎‎80, and 60% water overlapping percentage, respectively. ‎Peanut yield-water function was a linear relationship within ‎sprinkler treatment. Peanut yield was significantly affected by both irrigation amount and non-uniformity caused by sprinkler layouts and water overlapping.

Keywords

Main Subjects

Agricultural Irrigation and Drainage Engineering

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