Residue and tillage management effects of soil properties of a typic cryoboroll under continuous barley
-
Published source details
Singh B., Chanasyk D.S., McGill W.B. & Nyborg M.P.K. (1994) Residue and tillage management effects of soil properties of a typic cryoboroll under continuous barley. Soil and Tillage Research, 32, 117-133.
Published source details Singh B., Chanasyk D.S., McGill W.B. & Nyborg M.P.K. (1994) Residue and tillage management effects of soil properties of a typic cryoboroll under continuous barley. Soil and Tillage Research, 32, 117-133.
Actions
This study is summarised as evidence for the following.
Action | Category | |
---|---|---|
Amend the soil with fresh plant material or crop remains Action Link |
![]() |
|
Change tillage practices Action Link |
![]() |
-
Amend the soil with fresh plant material or crop remains
A randomized, replicated experiment in 1979-1988 on clay loam in Alberta, Canada (Singh et al. 1994) found higher soil organic carbon (5.81%) under no tillage plus straw mulch and with tillage plus straw incorporation (5.79%) compared to tillage with no straw treatment (5.5%). Differences between treatments became less pronounced with increased soil depth. Soil aggregates were 38% larger in no tillage plus straw than tillage plus straw treatments, and 175% larger than tillage with no straw. The wind-erodible fraction of soil aggregates (aggregates smaller than 1 mm diameter) was smallest (16%) in no tillage plus straw (meaning soil structural stability was higher), followed by tillage plus straw (29%) compared to tillage with no straw (49%). The effects of tillage and straw remains were not separated. Three tillage and straw treatments were applied to a spring barley Hordeum vulgare crop. Treatments included: no tillage (direct seeding) and straw retained on the soil surface; tillage (rotavation to 10 cm depth in autumn and spring) and straw incorporated into topsoil; and tillage with straw removed. Individual plots measured 6.8 x 2.7 m and were replicated four times. Nitrogen was applied at 56 kg N/ha in all treatments. Soils were sampled to 5 cm depth.
-
Change tillage practices
A randomized, replicated experiment in 1979-1988 on clay loam in Alberta, Canada (Singh et al. 1994) found higher organic carbon content under no-till plus straw (5.81%) compared to tillage plus straw incorporation (5.79%) and tillage no straw treatments (5.5%). Differences between treatments decreased with increased depth. Soil aggregates were 38% larger in no-till plus straw than tillage plus straw, and 175% larger than tillage no straw. The wind-erodible fraction of soil aggregates (smaller than 1 mm diameter) was smallest (16%) in no-till plus straw (i.e. soil structural stability was higher), followed by tillage plus straw (29%) compared to tillage no straw (49%). Three tillage and residue treatments were applied to a spring barley Hordeum vulgare crop: no tillage (direct seeding), straw retained on surface, tillage (rotivation to 10 cm depth in autumn and spring), straw incorporated into topsoil, and tillage, straw removed. Individual plots measured 6.8 x 2.7 m and were replicated four times. Nitrogen was applied at 56 kg N/ha in all treatments. Soils were sampled to 5 cm depth.
Output references
|