بررسی اثرات مقادیر مختلف آب آبیاری و کود ازته بر خصوصیات کمی و کیفی توده سیر همدان در سیستم آبیاری بارانی تک شاخه ای

The objectives of this study were to investigate the effects of four different irrigation levels (I , I , I and I ) and four nitrogen rates ( , , and kg N per ha) on yield, quality and water use efficiency of garlic population of Hamedan using a line source sprinkler irrigation during and season in Ekbatan agriculture station of Hamedan. The average water amounts applied to I , I , I and I for two years were , , and M per hectare respectively. The results showed that, the nitrogen rates significantly (P= , ) affected nitrogen content of garlic tuber. Nitrogen content of tuber increased with increasing nitrogen consumption and ranged from , percent for none nitrogen application per ha to , percent for kg per ha N using. The effects of nitrogen rates were not significant on other measured factors. Increasing in applied water increased garlic yield and mean weight of cloves significantly and ranged from kg/ha and , g/clove for I to kg/ha and , g/clove for I treatment respectively. Increasing in applied water decreased number of tuber cover and WUE and ranged from , cover per tuber and , kg/M for I to , cover per tuber and , kg/M for I treatment respectively. Interaction of N and irrigation water didn t affected measured factors.