Akademik Veri Yönetim Sistemi
1st International Conference on Plantation Technology, Kuala-Lumpur, Malezya, 23 - 24 Kasım 2021
The aim of this study was to determine
the effects of different single disc type furrow openers used in no-till
seeders on furrow properties and forces acting on the discs at different soil
moisture contents, soil compaction levels and seeding depths in soil bin
conditions. Five different types of disc coulter (plain, grooved, waved,
concave and serrated), two soil moisture contents (12%, 18%), two soil
compaction levels (2 MPa, 3MPa) and two seeding depths (50 mm, 75 mm) was taken
into account as factors. The experiment was conducted in a split-split plot
design with moisture content main factor and soil compaction sub factor with
three replications. Forces acting on the disc openers recorded from vertical
(Y), side (X) and draft (Z) directions. According to the results obtained; the
lowest vertical force, draft force and side force were observed in flat,
serrated and grooved type discs; while the highest vertical force, draft force
and side force were observed in concave, wavy and concave type discs respectively.
It has been determined that the vertical, draft and side force requirements of
all furrow openers were lower in loose soils with low moisture content, and
higher in compacted soils with high moisture content. Soil compaction values
below 2 MPa on average, which is not a problem for plant growth, were obtained
in the measurements made from both the bottom and the edge of the furrows.
Although the furrow profiles of the furrow openers were similar to each other,
it is seen that the furrow profile is more clear at 75 mm seeding depth than 50
mm. However, the furrow profiles of all openers at 18% soil moisture content
and 3 MPa soil compaction level were more pronounced in shape and closer to the
desired than the profiles at 12% moisture and 2 MPa compaction level.