Abstract
Abstract The results of an irrigated and unirrigated trial in which lucerne was established in the spring with wheat, barley, peas, linseed, and maize cover crops are reported. All the cover crops were sown at two seed rates. Measurements were taken of soil moisture and shading beneath the cover crops, lucerne plant numbers and root weights, and lucerne herbage production in the first and second seasons. All the cover crops except the unirrigated maize reduced lucerne production in the first season, and where weeds were abundant the cover crops suppressed them significantly in the establishment season. The heavy sowing rates of the barley, linseed, and wheat cover crops reduced lucerne plant numbers on the irrigated trial but not on the unirrigated trial. The cover crops reduced lucerne root development. Marked differences in the shading effects of the cover crops were noted. Three postulations are made relating the effect of the cover crop on the lucerne to moisture conditions during the period of competition and to the shading effect of the cover crop.
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Claims 7
Claim · model-written summary
Cover crops other than unirrigated maize reduced first season lucerne production.
- Taxon
- lucerne
Medicago sativae0 - Treatment
- cover cropse0
- Outcome
- lucerne productione0
- Direction
- reducede0
- Qualifier
- except the unirrigated maizee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All the cover crops except the unirrigated maize reduced lucerne production in the first season”
t0“lucerne”
Claim · model-written summary
Cover crops significantly suppressed abundant weeds during establishment.
- Taxon
- lucerneMedicago sativat0
- Treatment
- cover cropse0
- Interactor
- weedse0weed
- Outcome
- weedse0
- Direction
- suppressede0
- Qualifier
- in the establishment seasone0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“where weeds were abundant the cover crops suppressed them significantly in the establishment season”
t0“lucerne”
Claim · model-written summary
Heavy barley sowing reduced lucerne plant numbers in the irrigated trial but not the unirrigated trial.
- Taxon
- lucerneMedicago sativae0
- Treatment
- heavy sowing rates of the barleye0
- Outcome
- lucerne plant numberse0
- Direction
- reducede0
- Comparator
- unirrigated triale0
- Setting
- irrigated triale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The heavy sowing rates of the barley, linseed, and wheat cover crops reduced lucerne plant numbers on the irrigated trial but not on the unirrigated trial”
t0“lucerne”
Claim · model-written summary
Heavy linseed sowing reduced lucerne plant numbers in the irrigated trial but not the unirrigated trial.
- Taxon
- lucerneMedicago sativae0
- Treatment
- linseede0
- Outcome
- lucerne plant numberse0
- Direction
- reducede0
- Comparator
- unirrigated triale0
- Setting
- irrigated triale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The heavy sowing rates of the barley, linseed, and wheat cover crops reduced lucerne plant numbers on the irrigated trial but not on the unirrigated trial”
t0“lucerne”
Claim · model-written summary
Heavy wheat sowing reduced lucerne plant numbers in the irrigated trial but not the unirrigated trial.
- Taxon
- lucerneMedicago sativae0
- Treatment
- wheat cover cropse0
- Outcome
- lucerne plant numberse0
- Direction
- reducede0
- Comparator
- unirrigated triale0
- Setting
- irrigated triale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The heavy sowing rates of the barley, linseed, and wheat cover crops reduced lucerne plant numbers on the irrigated trial but not on the unirrigated trial”
t0“lucerne”
Claim · model-written summary
Cover crops reduced lucerne root development.
- Taxon
- lucerneMedicago sativae0
- Treatment
- cover cropse0
- Outcome
- lucerne root developmente0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cover crops reduced lucerne root development”
t0“lucerne”
Claim · model-written summary
Cover crops differed markedly in their shading effects.
- Taxon
- lucerneMedicago sativat0
- Outcome
- shading effects of the cover cropse0
- Qualifier
- Marked differencese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Marked differences in the shading effects of the cover crops were noted”
t0“lucerne”
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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.