Abstract
Barley was grown for 2 yr on Charlottetown fine sandy loam with various methods of application of fertilizers made from two nutrient source combinations. Grain yields were generally higher when fertilizer was placed 5 cm to the side of, and 5 cm below, the seed than when fertilizer was broadcast or drilled with the seed. Yields were higher with drilled than with broadcast fertilizer, except when urea and diammonium phosphate were used as N and P sources. High yields were obtained when P was drilled with the seed and N and K broadcast. Throughout the growing season, the uptake of P was lower from broadcast than from drilled or placed fertilizer. Low yields with broadcast fertilizer were attributed to the low availability of P. When N was broadcast and P drilled, yields were similar for broadcast and drilled K, although the uptake of K was lower when K was broadcast. Yield reduction where fertilizers containing urea and diammonium phosphate were drilled with the seed was attributed to damage from ammonia released by urea and diammonium phosphate.
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Claims 8
Claim · model-written summary
Placed fertilizer gave generally higher grain yields than broadcast or seed-drilled fertilizer.
- Taxon
- Barley
.jpg?width=60)
Hordeum vulgaret0 - Treatment
- fertilizer was placed 5 cm to the side of, and 5 cm below, the seede0
- Outcome
- Grain yieldse0
- Direction
- highere0
- Comparator
- fertilizer was broadcast or drilled with the seede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Grain yields were generally higher when fertilizer was placed 5 cm to the side of, and 5 cm below, the seed than when fertilizer was broadcast or drilled with the seed.”
t0“BARLEY”
Claim · model-written summary
Drilled fertilizer generally gave higher yields than broadcast fertilizer, except with urea and diammonium phosphate.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- drillede0
- Outcome
- Yieldse0
- Direction
- highere0
- Qualifier
- except when urea and diammonium phosphate were used as N and P sourcese0
- Comparator
- broadcast fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yields were higher with drilled than with broadcast fertilizer, except when urea and diammonium phosphate were used as N and P sources.”
t0“BARLEY”
Claim · model-written summary
Drilling P with seed while broadcasting N and K produced high yields.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- P was drilled with the seed and N and K broadcaste0
- Outcome
- yieldse0
- Direction
- Highe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“High yields were obtained when P was drilled with the seed and N and K broadcast.”
t0“BARLEY”
Claim · model-written summary
Broadcast fertilizer gave lower P uptake than drilled or placed fertilizer throughout the season.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- broadcaste0
- Outcome
- uptake of Pe0
- Direction
- lowere0
- Comparator
- drilled or placed fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Throughout the growing season, the uptake of P was lower from broadcast than from drilled or placed fertilizer.”
t0“BARLEY”
Claim · model-written summary
Low P availability was attributed as the cause of low yields with broadcast fertilizer.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- broadcast fertilizere0
- Outcome
- Low yieldse0
- Qualifier
- low availability of Pe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Low yields with broadcast fertilizer were attributed to the low availability of P.”
t0“BARLEY”
Claim · model-written summary
With broadcast N and drilled P, broadcast and drilled K gave similar yields.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- broadcaste0
- Outcome
- yieldse0
- Direction
- similare0
- Qualifier
- When N was broadcast and P drillede0
- Comparator
- drilled Ke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When N was broadcast and P drilled, yields were similar for broadcast and drilled K”
t0“BARLEY”
Claim · model-written summary
With broadcast N and drilled P, broadcast K gave lower K uptake than drilled K.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- K was broadcaste0
- Outcome
- uptake of Ke0
- Direction
- lowere0
- Qualifier
- When N was broadcast and P drillede0
- Comparator
- drilled Ke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When N was broadcast and P drilled, yields were similar for broadcast and drilled K, although the uptake of K was lower when K was broadcast.”
t0“BARLEY”
Claim · model-written summary
Ammonia release from drilled urea and diammonium phosphate fertilizer was attributed as causing yield reduction.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- fertilizers containing urea and diammonium phosphate were drilled with the seede0
- Outcome
- Yield reductione0
- Qualifier
- damage from ammonia released by urea and diammonium phosphatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield reduction where fertilizers containing urea and diammonium phosphate were drilled with the seed was attributed to damage from ammonia released by urea and diammonium phosphate.”
t0“BARLEY”
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