id:"swepub:oai:slubar.slu.se:118436"
Search: id:"swepub:oai:slubar.slu.se:118436" > Effects of loosenin...
- 1 of 1
- Previous record
- Next record
- To hitlist
- Getahun, Gizachew TarekegnSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för mark och miljö,Department of Soil and Environment (author)
Effects of loosening combined with straw incorporation into the upper subsoil on soil properties and crop yield in a three-year field experiment
- Article/chapterEnglish2022
Publisher, publication year, extent ...
- Elsevier BV,2022
- Elsevier,2024
Numbers
- LIBRIS-ID:oai:slubar.slu.se:118436
- https://res.slu.se/id/publ/118436URI
- https://doi.org/10.1016/j.still.2022.105466DOI
Supplementary language notes
- Language:English
- Summary in:English
Part of subdatabase
- SwePubSwePub
Classification
Notes
- Subsoil management needs to be integrated into the current tillage regimes in order to access additional resources of water and nutrients and sustain crop production. However, arable subsoil is often deficient in nutrients and carbon, and it is compacted, affecting root growth and yield. In this study, crop yield and soil responses to loosening of the upper subsoil, without and with straw injection below the plough layer (25-34 cm), were studied during three crop cycles (2016-2018) in a field experiment near Uppsala, Sweden. Responses to straw injection after loosening were studied after single and triple consecutive applications of 24-30 Mg ha-1 during 2015-2017 to spring-sown barley and oats. Subsoil loosening combined with one-time or repeated straw addition (LS treatments) significantly reduced soil bulk density (BD) and increased porosity, soil organic carbon (SOC) and total nitrogen (N) compared with loosening (L) alone (one-time or repeated annually) and the control. In treatment L, the soil re-compacted over time to a similar level as in the control. Field inspections indicated higher abundance of earthworms and biopores in and close to straw incorporation strips. Aggregates readily crumbled/fragmented by hand and casts (fine crumbs) were frequently observed in earthworm burrows. The treatment LS improved soil properties (SOC and porosity) and water holding capacity, but had no significant influence on crop yield compared with the control. Crop yield in all treatments was 6.5-6.8 Mg ha-1 in 2017 and 3.8-4.0 Mg ha-1 in 2018, and differences were non-significant. Absence of yield effect due to treatments could be possibly due to other confounding factors buffering expression of treatment effects on yield. Lower relative chlorophyll content in leaves in the loosening with straw treatment during early growth stages, did not affect final crop yield. Subsoil loosening performed three times gave no further improvement in soil properties and grain yield compared with one-time loosening. There was no difference in yield between repeated subsoil loosening + straw and one-time treatment. It will be interesting to study the long-term effects of deep straw injection and evaluate its impact under other soil and weather conditions.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
- Kätterer, ThomasSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för ekologi,Department of Ecology(Swepub:slu)48437 (author)
- Rychel, KatrinSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för mark och miljö,Department of Soil and Environment (author)
- Kirchmann, HolgerSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för mark och miljö,Department of Soil and Environment(Swepub:slu)49793 (author)
- Sveriges lantbruksuniversitetInstitutionen för mark och miljö (creator_code:org_t)
- Sveriges lantbruksuniversitet
Related titles
- In:Soil and Tillage Research: Elsevier BV2230167-19871879-3444
Internet link
Find in a library
- Soil and Tillage Research (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Getahun, Gizache ...
- Kätterer, Thomas
- Rychel, Katrin
- Kirchmann, Holge ...
- About the subject
-
- AGRICULTURAL SCIENCES
- AGRICULTURAL SCI ...
- and Agriculture Fore ...
- and Soil Science
- Articles in the publication
- Soil and Tillage ...
- By the university
- Swedish University of Agricultural Sciences
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
