Abstract
SUMMARY An experiment is described in which plots of a silt loam soil were compacted by ploughing and rotary cultivation when the moisture content was high. Kale and barley were grown on these plots in 2 years. Compaction of the soil was not as great as anticipated, but there were marked reductions due to wet cultivation in the dry-matter yield of kale and the vegetative growth of the young barley. Seed yield of barley was relatively unaffected, although there was a significant reduction due to wet ploughing in one year. The implication of these results for experimentation on the effects of soil structure on crop yield are discussed.
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Claims 5
Claim · model-written summary
Wet cultivation caused less soil compaction than anticipated.
- Taxon
- barley and kale
Brassica oleracea var. viridis.jpg?width=60)
Hordeum vulgaret0 - Outcome
- Compaction of the soile0
- Qualifier
- not as great as anticipatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Compaction of the soil was not as great as anticipated”
t0“barley and kale”
Claim · model-written summary
Wet cultivation markedly reduced kale dry-matter yield.
- Taxon
- kaleBrassica oleracea var. viridise0
- Treatment
- wet cultivatione0
- Outcome
- dry-matter yielde0
- Direction
- marked reductionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“marked reductions due to wet cultivation in the dry-matter yield of kale”
Claim · model-written summary
Wet cultivation markedly reduced young barley vegetative growth.
- Taxon
- barleyHordeum vulgaree0
- Organ / stage
- younge0
- Treatment
- wet cultivatione0
- Outcome
- vegetative growthe0
- Direction
- marked reductionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“marked reductions due to wet cultivation in the dry-matter yield of kale and the vegetative growth of the young barley”
Claim · model-written summary
Barley seed yield was relatively unaffected by wet cultivation overall.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- wet cultivatione1
- Outcome
- Seed yielde0
- Direction
- relatively unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed yield of barley was relatively unaffected”
e1“marked reductions due to wet cultivation in the dry-matter yield of kale and the vegetative growth of the young barley”
Claim · model-written summary
Wet ploughing significantly reduced barley seed yield in one year.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- wet ploughinge0
- Outcome
- Seed yielde0
- Direction
- reductione0
- Qualifier
- in one yeare0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed yield of barley was relatively unaffected, although there was a significant reduction due to wet ploughing in one year.”
The same questions in other papers
tillage · yield · Hordeum vulgare (barley)Positive and negative results
55 papers in the same direction as this paper · 105 in the opposite direction
- positive
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See all 161 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.