PEANUT CROP RESPONSE TO NON-UNIFORMITY OF IRRIGATION APPLICATION UNDER SPRINKLER SYSTEM PERFORMANCE | ||
| Misr Journal of Agricultural Engineering | ||
| Article 13, Volume 27, Issue 4, October 2010, Pages 1193-1211 PDF (776.54 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/mjae.2010.104811 | ||
| Authors | ||
| Kamal Hossny Amer1; Ahmed Hassan Gomaa1; Ehab Abd Allah Farag2 | ||
| 1Asst. Prof. of Ag. Eng. Dept., Fac. of Ag., Menofia University, Egypt. | ||
| 2Graduate student in Ag. Eng. Dept., Fac. of Agr., Menofia University, Egypt. | ||
| 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 | ||
| Peanut; Sprinkler irrigation; Crop response; Sprinkler layout and overlapping | ||
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