Boron Content of Large Soil Groups of Siverek (Şanlıurfa) Region

Abstract

In the study, it was aimed to determine the boron content of the large soil groups in Siverek county of Şanliurfa province and to determine relations with some properties of the soil. For this purpose, a total of 76 soil samples were taken from two different depths (0-20 and 20-40 cm) and 38 points, representing the large soil groups of Siverek county of Şanliurfa. Texture, pH, salt, lime, organic matter and available boron contents of the soils were determined in the samples. The results of the research show that the pH contents of soils is between 6.91-7.98; salt content is between 0.02-0.13%; clay content is between 24.32-67.76%; sand content is between 2.40-62.96%; silt content is between 6.00-68.72%; lime content is between 0.38-14.55%; organic matter content is between 1.11-3.35% and boron content of them is between 0.01-1.99 ppm. The obtainable boron content of the large soil groups of Siverek county of Şanliurfa province was found to be 65.38% too little , 26.32% little, 7.90% adequate at the depth of  0-20 cm, whereas it was found to be 81.58%  too little, 15.79% little and 2.63% sufficient at 20-40 cm depth. It was determined that there is a positive significant relationship between the obtainable boron content of soil and pH and lime contents. In addition, significant positive relationships between pH content and silt and lime were determined. Not only a negative significant relation between clay content and silt content of soils was determined, but negatively significant relations between sand content and silt and organic matter were determined, as well. At the same time, positive correlations were determined between the lime content of the soils and the organic matter.00