1 M.Sc. student of Irrigation and Drainage, Abouraihan College, University of Tehran, Iran
2Academic member of the Tehran University, Iran
3Academic member of the Tehran University, Iran
4Faculty at Rice Research Institute, Deputy of Mazandaran, Iran
Department of Irrigation and Drainage Engineering Faculty of Irrigation, Abouraihan College, University of Tehran, Iran
Online published on 4 August, 2017.
The purpose of this study was to investigate the effects of nitrogen and time irrigation on the roots and yield. A test was conducted in a split plot randomized complete block design, Main plots consisted of four irrigations (waterlogging, irrigation 60, 70 and 100% evaporation) and sub-plots four levels of nitrogen (0, 60, 80 and 120 kg/ha). The results showed high and close to the roots activity at 70 and 100% water evaporation and nitrogen at 120 and 80 kg/ha. The highest yield office was at irrigation 70% and nitrogen 80 kg/ha. The yield was not significant with flood irrigation and nitrogen@ 120 kg/ha.
Fuzzy, Irrigation, Nitrogen, Yield
