Evaluation of Treated Wastewater Irrigation Effect on yield components and yield of maize (single cross 704)

Today, efficient management and optimal use of wastewater resources in agriculture play an important role in reducing environmental hazards and surface water resources. In this study, in order to Evaluation of Treated Wastewater Irrigation Effect on yield components and yield of maize (single cross 704), an experiment carry out in factorial experiment based on a completely randomized design with treatments included; Water source factor (Wastewater (A1), Well water(A2)), Irrigation (subsurface method (I1) and (drip method (I2)) with three replication in 2018-2019 under lysimetric conditions, at the Sari Agriculture and Natural Resources University (SANRU). Based on the results, the effect of irrigation water source on grain yield, biological yield, biomass yield, 1000-seed weight, number of seeds per row and harvest index was very significant (P≤ 0.01). So that the average of the mentioned traits in irrigation with treated wastewater was higher than well water with the values of 918.66 kg/ha, 1319.55 kg/ha, 4421.02 kg/ ha, 302.13 g, 13.66 and 81, respectively. Also, the effect of irrigation method on grain yield, biological yield, biomass yield and number of grains per row of corn was very significant (P≤ 0.01). Based on the results, the subsurface irrigation method showed Superior results than the drip irrigation method. Irrigation with wastewater provides more nutrients especially nitrogen to the plant, compared to well water, which will increase the growth of plant organs. Therefore, plant yield increases with increasing the efficiency of the plant photosynthetic system. Finally, according to the findings, the increase in yield and yield components can be attributed to the superiority of using the wastewater source in the subsurface method compared to the well water source in both irrigation methods (subsurface and drop bar tape), and recommended it as a suitable alternative in irrigation of crops, especially corn.