Changes in some soil properties of wheat fields under conventional and reduced tillage systems in Northern Iraq

Authors : Füsun GÜLSER, Salar SALEM, Coşkun GÜLSER

Pages : 314-320

Doi:10.18393/ejss.780120

View : 13 | Download : 3

Publication Date : 2020-10-01

Article Type : Research Paper

Abstract :In this study, the effects of reduced tillage insert ignore into journalissuearticles values(RT); and conventional tillage insert ignore into journalissuearticles values(CT); systems on some soil properties of wheat fields in Northern Iraq insert ignore into journalissuearticles values(Duhok Province); under a hot and dry climatic condition were investigated. This study was carried out in a randomized plot design with four replications at three locations insert ignore into journalissuearticles values(Bardrash, Sumail, and Zakho); in the seasons 2017-2018. Four fields in each location at Duhok Province were equally separated into two groups for CT and RT systems. A group of 24 soil samples for each tillage system were taken from the locations. Soil organic matter content, pH, EC, bulk density and total porosity values were significantly insert ignore into journalissuearticles values(p<0.05); affected by different tillage systems. Soil pH, EC and bulk density values generally significantly reduced with the RT compared with CT. On the other hand, soil OM content and total porosity were significantly increased with the RT system in all locations under a hot and dry climatic condition. In all locations, RT system decreased bulk density and increased total porosity with conserving soil OM due to preventing from rapid mineralization. However, rapid mineralization of soil OM in the CT system under dry climate condition caused increases in EC which indicated that there were high soluble ions in soil solution.
Keywords : Soil properties, conventional tillage, reduced tillage, wheat