Abstract
Forage legumes are frequently established with a companion crop such as a cereal crop for controlling weed invasion and high hay production. This study was conducted under irrigated conditions in order to determine the effects of the seeding rate and harvest stage of barley as a companion crop on the hay yield and plant density of red clover and the botanical composition of hay. Red clover was established with barley sown at 0, 60, 120 and 180 kg ha-1 and cut at the milk-dough and hard-dough stages. The highest total hay yield (6000 kg ha-1) was measured at a 180 kg ha-1sowing rate and at the cutting milk-dough stage of barley in the establishment year. Weed invasion and red clover seedling losses were greatly reduced when a companion crop was used. Although the companion crop suppressed the growth of red clover, red clover density was not reduced. Companion crop treatments did not affect the total hay yield in the subsequent year. Therefore, red clover should be seeded with barley as a companion crop under irrigated conditions. In contrast to general recommendations, it is not necessary to reduce the sowing rate of the barley companion crop or to cut it early under Erzurum's climatic conditions.
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Claims 7
Claim · model-written summary
The highest total hay yield was 6000 kg/ha, at 180 kg/ha barley seeding and milk-dough cutting in the establishment year.
- Taxon
- Red clover
Trifolium pratensee1 - Treatment
- 180 kg ha-1sowing rate and at the cutting milk-dough stage of barleye2
- Outcome
- total hay yielde2
- Direction
- higheste2
- Value
- 6000 kg ha-1e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Red clover was established with barley sown at 0, 60, 120 and 180 kg ha-1 and cut at the milk-dough and hard-dough stages”
e2“The highest total hay yield (6000 kg ha-1) was measured at a 180 kg ha-1sowing rate and at the cutting milk-dough stage of barley in the establishment year”
Claim · model-written summary
Companion crop greatly reduced weed invasion and red clover seedling losses.
- Taxon
- red cloverTrifolium pratensee3
- Treatment
- companion crope3
- Interactor
- weede3weed
- Outcome
- Weed invasion and red clover seedling lossese3
- Direction
- greatly reducede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Weed invasion and red clover seedling losses were greatly reduced when a companion crop was used”
Claim · model-written summary
Companion crop suppressed the growth of red clover.
- Taxon
- red cloverTrifolium pratensee4
- Treatment
- companion crope4
- Outcome
- growth of red clovere4
- Direction
- suppressede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Although the companion crop suppressed the growth of red clover, red clover density was not reduced”
Claim · model-written summary
Companion crop did not reduce red clover density.
- Taxon
- red cloverTrifolium pratensee4
- Treatment
- companion crope4
- Outcome
- red clover densitye4
- Direction
- not reducede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Although the companion crop suppressed the growth of red clover, red clover density was not reduced”
Claim · model-written summary
Companion crop treatments did not affect total hay yield in the subsequent year.
- Taxon
- Red cloverTrifolium pratensee1
- Treatment
- Companion crop treatmentse5
- Outcome
- total hay yield in the subsequent yeare5
- Direction
- no_changeinferrede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Red clover was established with barley sown at 0, 60, 120 and 180 kg ha-1 and cut at the milk-dough and hard-dough stages”
e5“Companion crop treatments did not affect the total hay yield in the subsequent year”
Claim · model-written summary
Red clover should be seeded with barley as a companion crop under irrigated conditions.
- Taxon
- Red cloverTrifolium pratensee1
- Treatment
- companion crope6
- Outcome
- should be seeded with barley as a companion crope6
- Setting
- irrigated conditionse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Red clover was established with barley sown at 0, 60, 120 and 180 kg ha-1 and cut at the milk-dough and hard-dough stages”
e6“Therefore, red clover should be seeded with barley as a companion crop under irrigated conditions”
Claim · model-written summary
It is not necessary to reduce the barley companion crop sowing rate or to cut it early.
- Taxon
- barley
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Hordeum vulgaree7 - Outcome
- not necessary to reduce the sowing rate of the barley companion crop or to cut it earlye7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e7“it is not necessary to reduce the sowing rate of the barley companion crop or to cut it early”
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Hordeum vulgare · yield · Trifolium pratense (red clover)Results agree
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- positive
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2 in the opposite direction
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- negative
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See all 10 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.