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Mohammad Amerian; Seyyed Ebrahim Hashemi Garmdareh; Azra Karami
Abstract
Lack of water resources, especially in the agricultural sector, is one of the common problems in sustainable development. For this purpose, the present study was conducted to investigate the effect of deficit drip irrigation method on yield, yield components, and water use efficiency of corn (single ...
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Lack of water resources, especially in the agricultural sector, is one of the common problems in sustainable development. For this purpose, the present study was conducted to investigate the effect of deficit drip irrigation method on yield, yield components, and water use efficiency of corn (single cross 704), in the crop year 2017-2018 in the research farm of College of Aburaihan, University of Tehran, in Pakdasht City. The experiment was performed as a randomized complete block with three levels of 100% (D1), 75% (D2) and 55% (D3) water requirement of corn in three replications. The highest biomass yield was observed at the level of 100%, and with the application of 75% and 55% deficit irrigation, crop yield decreased by 25% and 50%, respectively. Also, the highest grain yield was 14805 kg/ha in 100% treatment and the lowest was 10227 kg/ha in 55% level. The highest biomass water use efficiency was obtained for the treatment of 75% drip irrigation and was equal to 3.55 kg/m3 of water consumption. Therefore, it can be said that a drip irrigation system with 75% water requirement is the optimal system and its use is recommended.