Comparison of iron oxides (ordinary and nano) and urban solid waste compost effect on nutrition of wheat plant

About 25 to 45 percent of world agricultural lands are calcareous، these soils are usually present in arid and semi arid regions that are contributing 1/3 of Iranian soils. Micro nutrients deficiencies، in some plants of these soils due to high CaCO3 is present problems in agricultural production، yields and yield contributing characters. because of these deficiencies a comparison of Zn، Cu and Mn in wheat plant by using ordinary and nano iron oxides particles of Folade Mobarake Esfehan wastes and urban solid waste compost coated with sulfur in soil was carried out in a factorial experiment based on completely randomized design with three replications. Treatments were five level of nano iron oxide (25-250 nm) (0، 0. 05، 0. 1، 0. 5، and 1. 0 % w/w)، five level of ordinary iron oxide (0. 02-0. 06 mm) and two level of sulfurous granular compost municipal solid (0 and 2% w/w). Results showed that reduced Mn، accordance with the amount of these iron oxide particles used in this study. Plant Mn reduction with nano particles was much more than the ordinary ones. However increased Zn and Cu.. Municipal solid waste compost coated sulfur application، also increased Zn،Cu،Mn in plant.