Effect of Dairy Effluent Reuse on Growth and Yield Indexes of Maize

Nowadays, due to drought and lack of water, using of low quality water have been addressed especially from wastewater that before was considered as a source of pollution. Now it considers as a source of nutrients for irrigation of plants. This study tried to investigate the effect of different quality of irrigation water mainly; dairy effluent farm and water wells (W) as control with surface irrigation methods on the performance of maize 704 single cross in 2013 in Shahrekord University. In this study, treatments were effluent of four parts of Saman dairy industrial farms named DEsep, DEshir, DEkol, DEsalon. All growth and yield indexes was measured such as plant height, stem diameter, leaf numbers, wet and dry weight, number of ears per plant, number of kernels per corn and the percentage of dried treatment. The result shows that the mentioned parameters observed was maximum as 148.63, 2.29, 308.01, 80.14, and 28.05 in DEshir, respectively. It was minimum as 74.75, 1.63, 117.1, 17.50 and 10.84 in DEsep, respectively. The results show a significant effects of dairy effluent farm on plant yield, and it can conclude that dairy effluent farm can be a suitable alternative for chemical fertilizers. In this study, the controlled treatment (W) that was irrigated just by well water, because of the lack of nutrient supply, in terms of yield was lower than dairy effluent farm treatment. It seems that the macro and micro nutrients in dairy effluent farm, especially nitrogen can increase stem elongation and stem diameter. As a result, the wet and dry weight increase with the use of consumption of dairy effluent farm.