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Bulk density, particle density and porosity at 0-15 cm soil depth of post experimental soil as influenced by tillage depths and cropping patterns.
Source publication
An experiment was conducted aiming to understand the interaction of tillage depth and cropping systems on the yield of crops and soil physical properties. The experiment compared nine treatment combinations comprising three tillage depths as zero tillage (ZT), tillage by power tiller up to 10-12 cm depth (PT) and tillage by chiseling up to 20-25 cm...
Contexts in source publication
Context 1
... difference of bulk density (Bd) among different tillage depths was found insignificant. But the effects of cropping patterns alone and the interaction effect of cropping patterns and tillage depths on Bd were observed significant (Table 4). The Bd ranged from 1.45 to 1.49 g cm -3 in the surface layer (0-15 cm). ...Context 2
... findings are in agreement with the studies of Husnjak et al. (2002) and Rahman et al. (2007). The effects of tillage depths, cropping patterns and their interactions on soil particle density (Pd) were insignificant (Table 4). It is fact that the Pd is not altered easily by normal physical manipulation of soil. ...Similar publications
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Citations
The aim of this thesis is to determine the effect of different soil tillage depth using
chisel plow on soil CO2 emission and some soil physical properties. The experiment
was carried out using chisel plow at three depths of 15 (A), 25 (B), 35 (C) cm and
control (D) treatment and three replications. In the experiment, soil CO2 emission,
Mean Weight Diameter (MWD), bulk density and soil penetration resistance were
determined after the seed bed preparation. In situ soil CO2 measurement was carried
out for two months at regular intervals after the tillage using the soil carbon dioxide
flux system.
According to the obtained results, carbon dioxide emissions determined for A, B, C
and D treatment were 0.148, 0.172, 0.213 and 0.165 g m-2 h-1 respectively. The highest
carbon dioxide emissions were obtained for C treatment and it statistically significant
(p ≤ 0.01). The increase in soil tillage depth with chisel plow led to increase the
emission of soil carbon dioxide emission. Soil bulk densities for A, B, C and D
treatment were found as 1.33, 1.32, 1.24, and 1.39 g cm-3 respectively. There was no
difference between the treatments in terms of bulk density and porosity in statistical
considerations (p ≤ 0.01). Soil penetration resistance in 0 - 40 cm soil depth for A, B,
C, and D treatment were found as 1.13, 1.12, 1.10, and 1.19 MPa, respectively. The
penetration resistance decreased with the increasing of soil tillage depth. All of the
treatment included D had no statistical significant differences (p ≤ 0.01) in term of
penetration resistance. The soil aggregates size also increased as the soil tillage depth
increased. Soil evaporation for A, B, C, and D treatment were found to be 4.51, 5.27,
5.76 and 5.26 g m-2 h-1 respectively. Treatment of C had the highest water evaporation.
There were a positive correlation between the soil CO2 emission and soil evaporation.
