Randomized trial investigates selenium levels in sorghum and surrounding soil, indicating health relevance.
Key Points
This study aims to analyze selenium distribution and its migration characteristics in the rock-soil-sorghum system vital for Moutai liquor production.
Conducted sampling in a typical Moutai sorghum planting base.
Determined selenium content using atomic fluorescence and inductively coupled plasma mass spectrometry techniques.
Analyzed selenium levels in rock, soil, and sorghum grain.
Rock selenium content averaged 0.15 mg.kg-1, significantly higher than crust abundance and Chinese rock standards.
Soil selenium content averaged 0.63 mg.kg-1, with 76.63% of the area classified as selenium-rich, indicating strong inheritance from parent rock.
Sorghum grain selenium content averaged 0.038 mg.kg-1, indicating health-friendly levels, with a strong linear correlation between soil and sorghum selenium content.