Document Type : Research Paper

Authors

• Meysam Abedinpour ¹
• mohammadhossein Razzaghi ²

¹ Faculty member, Agricultural Engineering Department

² Agricultural Engineering and Technical Research Department

Abstract

Sesame plant is adapted to semi-arid conditions and one of its distinctive features is tolerance to water stress. Nevertheless, the results of numerous studies indicate that the correct management of irrigation plays a significant role in increasing the quantity and quality of sesame seeds. This research was conducted to determine the optimal irrigation method, applied water volume and planting arrangement to achieve the maximum yield and water productivity of sesame in Gorgan region. In this study, which was carried out as completely randomized blocks at the Agricultural Research Station in Gorgan, the experimental treatments included: 3 irrigation methods (sprinkle, T-tape drip and surface) along with three arrangements of planting on a raised bed (2 rows of planting on a raised bed 50 cm wide, 1 planting row on a 50 cm wide ridge and one planting row with 50 cm intervals on a flat bed) were considered. Based on the data obtained from this research, the maximum seed yield in both years of the experiment in the T-tape drip irrigation system and in the stack planting arrangement and the lowest seed yield in the surface irrigation treatment with the flat planting method were 1305 and 735 kg respectively. It became a hectare. The average amount of applied water for the two years of testing for the strip drip irrigation system was measured to be about 4180 m3/ha, and the amount of applied water for sprinkler and surface irrigation methods was measured to be about 4675 and 5930 m3/ha, respectively. The maximum efficiency of water and irrigation water in the T-tape drip irrigation method and ridge planting method was achieved at the rate of 0.31 and 0.45 kg of yield per cubic meter of water, respectively. In total, T-tape drip irrigation method and ridge planting method are suitable The best method of irrigating and planting sesame is recommended to achieve maximum seed yield and water productivity with minimal water consumption.

Keywords

• applied water
• pressurize irrigation system
• raised bed

Main Subjects

• 7