Volume 27, Issue 3 (Fall 2023)                   jwss 2023, 27(3): 201-214 | Back to browse issues page

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Vaezi A, Rezaeipour S, Babaakbari M, Azarifam F. Short-Term Effects of Tillage Direction and Amount of Mulch Consumption on Soil Physical Properties in a Wheat Rainfed Land. jwss 2023; 27 (3) :201-214
URL: http://jstnar.iut.ac.ir/article-1-4309-en.html
Zanjan University , vaezi.alireza@gmail.com
Abstract:   (523 Views)
Improving soil physical properties and increasing water retention in the soil are management strategies in soil and water conservation and enhancing crop yield in rainfed lands. This study was conducted to investigate the role of tillage direction and wheat stubble mulch level in improving soil physical properties in rainfed land in Zanjan province. A field experiment was done at two tillage directions: up to the downslope and contour line, and five stubble mulch levels: zero, 25, 50, 75, and 100% of land cover equal to 6 tons per hectare. A total of 30 plots (2 m×5 m) were created. The results indicated that water infiltration and water content were considerably affected by tillage direction, whereas its effect on water holding capacity was not significant. This physical property of the soil was influenced by the inherent properties of the soil, including particle size distribution. The change of up to down tillage direction to the contour line increased soil infiltration to 11% and water content to 6%. The physical soil properties were wholly influenced by mulch consumption. Soil water content increased in mulch treatments along with water holding capacity and infiltration rate. The highest volumetric water content was at 100% mulch level (10.62%) which was 11% more than the control treatment. However, there was no significant difference between 100% and 75% mulch treatment. This revealed that the application of 75% stubble mulch in contouring tillage is a substantial strategy for improving soil physical properties and controlling water loss in rainfed lands of semi-arid regions.
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Type of Study: Research | Subject: Ggeneral
Received: 2022/10/30 | Accepted: 2023/06/12 | Published: 2023/12/1

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