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Compaction and soil water content in tillage induced system (CROSBI ID 213943)

Prilog u časopisu | izvorni znanstveni rad

Bogunović, Igor ; Kisić, Ivica Compaction and soil water content in tillage induced system // Savremena poljoprivreda, 63 (2014), 3; 251-259

Podaci o odgovornosti

Bogunović, Igor ; Kisić, Ivica

engleski

Compaction and soil water content in tillage induced system

Soil compaction is a growing threat around the World for crop production. For that reason longtime stationary field experiment with six soil tillage systems was conducted in Central Croatia. This paper will try to provide an assessment of the impact of tillage system on soil compaction and soil moisture retention in the upper 40 cm soil layer. The aim is to determine the optimal tillage system due to the compaction and soil water content (SWC). During 2012 soil resistance was measured with penetrometer in six occasions. Disturbed soil samples were taken in six occasions from the depth of 0 - 20 cm and 20 - 40 cm in three replications. Statistical data evaluation showed significant differences in SWC between all tillage systems at all depths. SWC varied at depth 0 - 20 cm from 277 to 910 m3 ha-1 and at depth 20 - 40 cm from 337 to 814 m3 ha-1 depending on the period of the year. No-till (NT) system statistically shown highest SWC (699 m3 ha-1) and had from 12.1% less to 5.8% more stored SWC in layer 0 - 40 cm than other tilled plots during 2012. Soil resistance at depth of 0 - 10 cm varied from 0.29 to 2.54 MPa, at depth of 10 - 20 cm from 0.37 to 3.36 MPa, at depth of 20 - 30 cm from 0.78 to 4.72, at depth of 30 - 40 cm from 1.25 to 7.19 MPa depending on SWC. Soil resistance showed significant differences in most of the soil layers between all tillage systems. It can be concluded that climate conditions and tillage systems through SWC differently affected soil resistance. Although NT system showed slightly higher soil resistance in layer 0 - 40 cm than variants with deep tillage (deep ploughing across the slope - DP and subsoiling with ploughing across the slope - SUB) results from 2012 suggest that, up to now, no-tillage could replace conventional tillage without adverse effects on SWC in the Central Croatia, but further detailed research is necessary for safer conclusion.

soil compaction ; soil water content ; tillage system ; water conservation

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Podaci o izdanju

63 (3)

2014.

251-259

objavljeno

0350-1205

Povezanost rada

Poljoprivreda (agronomija)