Effect of the Addition of Selenium and some Competing Anions on Selenium Concentration in Maize Growing in some Soils in Central Iraq

Abstract

The effect of selenium and some competing anions to the soil on selenium concentration in maize growing in AL-Herria (clay )soil and Khan al-Nass (Sandy Loam )soil was studied. four levels ( 0, 20, 40 and 60 )gm Se ha-1 and three levels of Sulfur and (0, 45, 90 )Kg S ha-1 and phosphate in doses of (0, 90, 180) Kg P ha-1 were added to the soil. Maize plant content of selenium increased significantly, with increasing soil applications of selenium in both soils. While the plant content of selenium was decreased from (79.75 to 76.32 and 72.09 μg Se gm-1)and from (47.08 to 44.04 and 41.2 μg Se gm-1)with addition of as and 90 kg S ha -1 to Al-Herria and khan al-Nass soils respectively. Plant selenium content was also decreased from 79.75 to 76.32 and 72.09 and from 46.38 to 44.28 and 41.64 μg Se gm-1 with soil application of 90 and 180 kgP ha-1 to Al-Herria and khan al-Nass soils respectively. Increasing addition of and phosphorus censed decreasing of selenium content of corn plant in both soils.