Investigation about variances of some mineral elements of Eurotia ceratoides in different elevations of sea level (study of Nodooshan rangeland in Yazd)

Purpose of this study is investigation about mineral elements variances of Eurotia ceratoides in different elevations of Nodooshan rangelands in Yazd. Sampling was done in a random-systematic way in these elevations: 2200، 2300، 2450. In each elevation، in 5 points، Eurotia ceratoides bushes were selected، that they hadn’t been changed through the examination. Sampling was executed in three stages of growth، flowering and seeding of the bushes. In laboratory، calcium، phosphorus، nitrogen and potassium were evaluated. For examination، analysis of variance and Duncan were used. Results show that there’s no significant difference between the examined elements during the growth stage in three elevations. In the flowering time، there is a significant difference between nitrogen and plant protein in three elevations that in 2200 meters of height it is maximum (1. 251). In the seeding time، there is a significant difference between all of the examined elements except potassium in 2200 meters. There is maximum amount of nitrogen، phosphorus، calcium and protein with the average percentage of 0. 658، 0. 015، 3. 20، 4. 11 respectively.