The Effect of Openers Disks Arrangement on Furrow Moisture Content

Document Type : Research Paper

Authors

1 Department of Biosystems Engineering, Arak University, Arak, Iran

2 Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Arak, Iran

Abstract

Abstract
The soil engaging components of a planter have an important role on its performance. This study was conducted for comparison of the effect of three openers disks arrangment (tilted plain disk + tilted plain disk, tilted plain disk + perpendicular plain disk and tilted plain disk + perpendicular notched disk) on furrow moisture content change. Measurements was directly at openning time and after three time intervals (48, 96 and 144 hours after furrow opening) in two soil conditions (with Cone indexes of 0.39 and 1.04 MPa) with repeated measures design. Variance analysis has been revealed a significant difference between treatments on  the loose and  firm soils moisture content. According to the means comparison, moisture lost was the lowest, equal to 5.07% on tilted plain disk + perpendicular plain disk treatment. On tilted plain disk + tilted plain disk and tilted plain disk + perpendicular notched disk treatments it was 8.6% and 11.07 %, respectively. According to the results, in firm soil conditions it is recommended to use the tilted plain disk + perpendicular plain disk arrangment.
 

Keywords


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