Increasing Unit Area Productivity and Net Income By Intercropping Peas With Some Wheat Cultivars Under Different Levels Of Nitrogen Fertilizer

: A field experiment was carried out during 2018/2019 and 2019/2020 on Sakha Agricultural Research Station Farm, Agricultural Research Center, Egypt, .this study aimed to investigate the effect of nitrogen fertilizer levels (75, 60 and 45kg N/fed) on the productivity of some wheat cultivars (Gemmiza-11, Giza-171 and Misr-1) intercropped with peas (100% wheat + 50% peas as a pure stand) as well as competitive relationships and net return. The experiment was carried out in a split-plot design with three replications. The main-plots were assigned to wheat cultivars, while the sub-plots were apportioned to nitrogen fertilizer levels. The results indicated that Misr-1 cultivar significantly superior other wheat cultivars in yield and its attributes when intercropped with peas, followed by Giza-171 cultivar and then Gemmiza-11cultivar in each season . Intercropping peas with Gemmiza-11 wheat cultivar produced the highest mean values of peas growth, yield and yield attributes, followed by intercropping peas with Giza-171 and then Misr-1 wheat cultivars in each season . Application of 75kg N/fed significantly increased all studied characters of both wheat and peas followed by the application of 60 kg N/fed and then application of 45 kg N/fed in each season . The total green seed of peas did not reach 5% significantly when intercropped with Gemmiza-11and Misr-1 cultivars and 75Kg N/ fed. It can be concluded that the maximum land equivalent ratio (LER), total income and net return were obtained from intercropping wheat with 100 % and peas with 50% of its pure stand and fertilizing Misr-1 cultivar with 75kg N/fed under ecological circumstances of Kafr El-Sheikh Governorate, Egypt.