اثر پساب تصفيه شده شاهين شهر بر خصوصيات زراعي و شيميايي ذرت تحت سيستم هاي آبياري باراني و سطحي

The effect of Shahinshahr treated wastewater on agronomic and chemical characteristics of corn under sprinkler and surface irrigation systems

This study was carried out in two exprimental plots to investigate the effects of Shahinshahr Wastewater Treatment Plant and soil characteristics on yield and characteristics of corn (Zea mays L.). Irrigation water treatment including well water and wastewater and irrigation system treatment including sprinkler and surface irrigation were used. Using microsoft CROPWAT model, irrigation intervals were selected to be every 10 days but the amount of water and time of irrigation were different in each cycle. Wasterwater treatment increased kernal yield, harvest index, plant highʹ, ear length, ear diameter, row of seed and column of seed corn. Sprinkler system as compared to surface system caused significant increase in above parameters. Wastewater treatment as compared to well water treatment caused significant increase in soil basic intake rate. Also, irrigantion system showed significant effect on soil basic intake rate. The wastewater can be used as a source for irrigation water in Shahinshahr region for corn production, and it can be used as a source of nirtogen as it is required by soil.