Onion Biofortification Using Selenium Bionanofertilizer and its Bulk Source under Sandy Soil Conditions

Abstract Human health depends on the daily supply of fresh vegetables and fruits, which contain essential, nutrients, vitamins other bioactive compounds. Due to malnutrition in several places all over world, biofortification approach is a crucial solution overcome this global problem. In current study, biological nanofertilizer selenium (nano-Se) was tested onion crop comparing with its bulk source under sandy soil conditions. applied doses nano-Se were 10, 20, 30 40 mg L −1 both nano mineral form Se. The main investigated parameters vegetative growth nutritional status leaves bulbs. obtained results have significant difference between for studied measurements. general, increased their values increasing from Se sources up or compared control, depending selected parameter. This increase reached more than 60% (for bulb dry weight), 55% same parameter after applying source. Applying achieved higher some onion, whereas domain others. study confirmed that forms can be because content located accepted level priority nano-Se, accumulate lower concentration form. work opened question about nano-biofortification possibility apply crops focus suitable added dose safe successful program.