Effect of applying sodium selenium in soil on selenium uptake content and yield and quality of garlic

In this experiment,white garlic of Xinjiang was used as a object to investigate selenium uptake content of garlic and the effect of applying 0(CK),0.15,0.30,0.45,0.60 and 0.75 g/m2 of sodium selenium in soil on yield and quality of garlic.The results showed that the crucial stage of selenium accumulation was from the 119th day to 126th day after application,and the selenium uptake content was up to 1.4 mg/kg,100.72 times of the ck.Application of 0.15～0.60 g/m2 of selenium increased the yield significantly compared with ck,but there were no significant differences among various treatments.At the same time,vitamin C content and amino acid content of each component were increased in different treatments.However,the reducing sugar content was decreased.In comprehensive consideration of the effect of selenium application on the selenium content,yield and quality of garlic and the safety of enriched selenium for human health,the best application amount of selenium was 0.45 g/m2.