Estimation of soil organic matter using physical method in some selected soils in Iraq

	Estimation of soil organic matter using physical method in some selected soils in Iraq
Euphrates Journal of Agriculture Science
Article 1, Volume 7, Issue 4, 2015, Pages 168-172
Abstract
The present study included a selection of four sites in some of the Iraqi soils differ in their content of organic matter, Soil samples were taken at randomly in depth 5-20 cm.Twomethodes were selected to estimate the amount of organic matter include dry burning and wet oxidation. For dry burning method, range of different tempreture 200, 250, 300, 350, 400 were used for 16 hours of burning.Therefore, The amount of organic matter in Badi and Bablo areas was 48.08 and 49.41 g.kg-1; However in Mahaweel and Rumaitha areas was 6.85 and 6.63 g.kg-1. Respectively in contrast wet oxidation method, the amount of organic matter was 52.53 and 51.53 g.kg-1 in Badi and Bablo, and 7.39 and 6.39 g.kg-1 inMahaweel and Rumaitha.The best degree was 250 C°, when it gave the a least significant difference compared to thermal degrees selected.When comparing the wet oxidation method with the dry burning method; the current study,the best degree was 250 Cﹾﹾ .

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