Abstract
Crop production diversification in western Canada includes pulse crops, necessitating more information on fertilization of these crops. Experiments with seed placement (SP) and side banding (SB) of phosphorus (P) fertilizer were conducted at three Saskatchewan locations during a 3-yr period, using pea (Pisum sativum L.), lentil (Lens culinaris Medikus) and faba bean (Vicia faba L.) for a total of 24 location-crop combinations. Monoammonium phosphate was applied at six rates of up to 44 kg P ha −1 . Stand counts were taken at 3–4 wk after seeding; seed yield, seed P and seed protein concentration were measured. Stand count of pea was inversely proportional to rate of SP-P, with the stand count being reduced by 50% at the 44 kg P ha −1 rate. Lentil stand was reduced by SP-P at only two locations, and the effects were much less severe than for pea. Faba bean stand was not affected by P placement or rate. Seed yield of pea was higher with SB-P than with SP-P at all locations, but with lentil, SB-P gave higher seed yield at only two of the three locations. Seed yield of faba bean was not affected by P placement. Seed P concentration was directly related to P rates at two locations but was not affected by P placement. Seed protein concentration of the three crops was not affected by P treatment. Key words: Placement, phosphorus fertilizer, pulse crops, pea, lentil, faba bean
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Claims 9
Claim · model-written summary
Pea stand count fell as seed-placed phosphorus rate rose, reaching a 50% reduction at 44 kg P ha −1.
- Taxon
- pea
Lathyrus oleraceuse0 - Treatment
- SP-Pe0
- Outcome
- Stand counte0
- Direction
- reducede0
- Value
- 50%e0
- Qualifier
- 44 kg P ha −1 ratee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Stand count of pea was inversely proportional to rate of SP-P, with the stand count being reduced by 50% at the 44 kg P ha −1 rate.”
Claim · model-written summary
Seed-placed phosphorus reduced lentil stands at two locations, less severely than for pea.
- Taxon
- Lentil
Lens culinarise0 - Treatment
- SP-Pe0
- Outcome
- Lentil stande0
- Direction
- reducede0
- Qualifier
- at only two locationse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lentil stand was reduced by SP-P at only two locations, and the effects were much less severe than for pea.”
Claim · model-written summary
Phosphorus placement or rate did not affect faba bean stand.
- Taxon
- Faba bean
Vicia fabae0 - Treatment
- P placement or ratee0
- Outcome
- Faba bean stande0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Faba bean stand was not affected by P placement or rate.”
Claim · model-written summary
Pea seed yield was higher with side-banded than seed-placed phosphorus at all locations.
- Taxon
- peaLathyrus oleraceuse0
- Treatment
- SB-Pe0
- Outcome
- Seed yielde0
- Direction
- highere0
- Qualifier
- at all locationse0
- Comparator
- SP-Pe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed yield of pea was higher with SB-P than with SP-P at all locations”
Claim · model-written summary
Lentil seed yield was higher with side-banded than seed-placed phosphorus at two of three locations.
- Taxon
- lentilLens culinarise0
- Treatment
- SB-Pe0
- Outcome
- seed yielde0
- Direction
- highere0
- Qualifier
- only two of the three locationse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with lentil, SB-P gave higher seed yield at only two of the three locations.”
Claim · model-written summary
Phosphorus placement did not affect faba bean seed yield.
- Taxon
- faba beanVicia fabae0
- Treatment
- P placemente0
- Outcome
- Seed yielde0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed yield of faba bean was not affected by P placement.”
Claim · model-written summary
Seed phosphorus concentration rose with phosphorus rate at two locations.
- Taxon
- pea, lentil and faba beanLens culinarisLathyrus oleraceusVicia fabat0
- Treatment
- P ratese0
- Outcome
- Seed P concentratione0
- Qualifier
- at two locationse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed P concentration was directly related to P rates at two locations”
t0“pea, lentil and faba bean”
Claim · model-written summary
Phosphorus placement did not affect seed phosphorus concentration.
- Taxon
- pea, lentil and faba beanLens culinarisLathyrus oleraceusVicia fabat0
- Treatment
- P placemente0
- Outcome
- Seed P concentratione0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed P concentration was directly related to P rates at two locations but was not affected by P placement.”
t0“pea, lentil and faba bean”
Claim · model-written summary
Phosphorus treatment did not affect seed protein concentration in the three crops.
- Taxon
- pea, lentil and faba beanLens culinarisLathyrus oleraceusVicia fabat0
- Treatment
- P treatmente0
- Outcome
- Seed protein concentratione0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed protein concentration of the three crops was not affected by P treatment.”
t0“pea, lentil and faba bean”
The same questions in other papers
phosphorus · quality: protein · Lens culinaris (lentil)Results differ
8 in the opposite direction
- positive
- positive
- positive
5 papers more in this group
See all 9 papers →phosphorus · quality: protein · Lathyrus oleraceus (pea)Results differ
2 papers in the same direction as this paper · 6 in the opposite direction
- positive
- no effect
- positive
5 papers more in this group
See all 9 papers →phosphorus · quality: protein · Vicia faba (faba bean)Positive and negative results
1 paper in the same direction as this paper · 7 in the opposite direction
- positive
- positive
- positive
5 papers more in this group
See all 9 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.