Abstract
Markets for organic barley and wheat are expanding. A major problem growing organic barley and wheat is controlling the weeds. Organic barley and wheat were grown in conventional 6-inch drill spacing but also in 30 inch spacing so weeds could be cultivated in a study at the Larry Hart Farm near Maricopa. The weed pressure was moderate and the weed biomass was about 1 to 5% of the crop biomass near maturity. The primary weed was Palmer amaranth. Grain yields of the wheat (durum) were similar regardless of row spacing, but the barley grain yields were 3921 lbs/acre in the 6 inch spacing and 2530 lbs/acre in the 30 inch spacing.
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Claims 5
Claim · model-written summary
Weed biomass was about 1 to 5% of crop biomass near maturity.
- Taxon
- barley and wheat
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Hordeum vulgare
Triticum aestivumt0 - Interactor
- Palmer amaranthe1weed
- Outcome
- weed biomasse0
- Value
- 1 to 5%e0
- Qualifier
- near maturitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“barley and wheat”
e0“the weed biomass was about 1 to 5% of the crop biomass near maturity”
e1“The primary weed was Palmer amaranth.”
Claim · model-written summary
Palmer amaranth was the primary weed.
- Taxon
- barley and wheatHordeum vulgareTriticum aestivumt0
- Interactor
- Palmer amaranthe0weed
- Outcome
- primary weed was Palmer amaranthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“barley and wheat”
e0“The primary weed was Palmer amaranth.”
Claim · model-written summary
Durum wheat grain yield was similar across row spacings.
- Taxon
- wheatTriticum aestivume0
- Treatment
- 30 inch spacinge1
- Outcome
- Grain yieldse0
- Direction
- similare0
- Comparator
- 6-inch drill spacinge1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain yields of the wheat (durum) were similar regardless of row spacing”
e1“conventional 6-inch drill spacing but also in 30 inch spacing”
Claim · model-written summary
Barley yielded 3921 lbs/acre at 6 inch spacing.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- 6 inch spacinge0
- Outcome
- barley grain yieldse0
- Direction
- higherinferrede0
- Value
- 3921 lbs/acree0
- Comparator
- 30 inch spacinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“barley grain yields were 3921 lbs/acre in the 6 inch spacing and 2530 lbs/acre in the 30 inch spacing”
Claim · model-written summary
Barley yielded 2530 lbs/acre at 30 inch spacing.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- 30 inch spacinge0
- Outcome
- barley grain yieldse0
- Direction
- lowerinferrede0
- Value
- 2530 lbs/acree0
- Comparator
- 6 inch spacinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“barley grain yields were 3921 lbs/acre in the 6 inch spacing and 2530 lbs/acre in the 30 inch spacing”
The same questions in other papers
density · yield · Hordeum vulgare (barley)Positive and negative results
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See all 97 papers →density · yield · Triticum aestivum (wheat)Positive and negative results
121 papers in the same direction as this paper · 376 reporting no difference from an alternative
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See all 498 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.