Abstract
Abstract Laying hen litter [3.4% nitrogen (N), 0.86% phosphorus (P), 15% water (H2O)] as a fertilizer was evaluated in greenhouse production of strawberry (Fragaria ananassa Duch. cv. Oso Grande) and cos‐lettuce (Lactuca sativa L. cv. Amanthus). Litter was preplant soil incorporated at 7 (R1) and 14 (R2) ton ha‐1, and compared to ammonium nitrate (AN) (34–0–0) and an unfertilized (control) treatments. Rates of AN were at 150 kg N ha‐1 for strawberry, in eight split applications, and 100 kg N ha‐1 for lettuce, in two split applications. Preplant soil levels (mg kg‐1) of NO3‐N and P(H2O sol.) were 80 and 5.5, respectively (strawberry), and 91 and 6.8, respectively (lettuce). Strawberry yield was highest in R2 with all fertilized treatments yielding higher than the control. Leaf phosphorus (P) was comparable in all treatments, with R2 giving the highest P content. Lettuce yield was comparable in all treatments. Leaf NO3‐N was higher in all fertilized treatments than the control and leaf P was comparable among all treatments. The lower rate of litter is recommended as it is equally effective to AN and the higher litter rate.
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Claims 8
Claim · model-written summary
Strawberry yield was highest at the higher litter rate.
- Taxon
- Strawberry
_single2.jpg?width=60)
Fragaria ×ananassae0 - Treatment
- R2e0
- Outcome
- Strawberry yielde0
- Direction
- higheste0
- Comparator
- all fertilized treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“Strawberry yield was highest in R2 with all fertilized treatments yielding higher than the control.”
Claim · model-written summary
All fertilized treatments yielded more strawberry than the control.
- Taxon
- StrawberryFragaria ×ananassae0
- Treatment
- all fertilized treatmentse0
- Outcome
- Strawberry yielde0
- Direction
- highere0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Strawberry yield was highest in R2 with all fertilized treatments yielding higher than the control.”
Claim · model-written summary
Strawberry leaf phosphorus was comparable across treatments.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- all treatmentse0
- Outcome
- Leaf phosphorus (P)e0
- Direction
- comparablee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf phosphorus (P) was comparable in all treatments, with R2 giving the highest P content.”
t0“strawberry”
Claim · model-written summary
The higher litter rate gave the highest strawberry leaf phosphorus.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- R2e0
- Outcome
- P contente0
- Direction
- higheste0
- Comparator
- all treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf phosphorus (P) was comparable in all treatments, with R2 giving the highest P content.”
t0“strawberry”
Claim · model-written summary
Lettuce yield was comparable across treatments.
- Taxon
- Lettuce
Lactuca sativae0 - Treatment
- all treatmentse0
- Outcome
- Lettuce yielde0
- Direction
- comparablee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lettuce yield was comparable in all treatments.”
Claim · model-written summary
Fertilized lettuce had higher leaf nitrate nitrogen than the control.
- Taxon
- lettuceLactuca sativat0
- Treatment
- all fertilized treatmentse0
- Outcome
- Leaf NO3‐Ne0
- Direction
- highere0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf NO3‐N was higher in all fertilized treatments than the control and leaf P was comparable among all treatments.”
t0“lettuce”
Claim · model-written summary
Lettuce leaf phosphorus was comparable among treatments.
- Taxon
- lettuceLactuca sativat0
- Treatment
- all treatmentse0
- Outcome
- leaf Pe0
- Direction
- comparablee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf NO3‐N was higher in all fertilized treatments than the control and leaf P was comparable among all treatments.”
t0“lettuce”
Claim · model-written summary
The authors recommend the lower litter rate because it is as effective as ammonium nitrate and the higher litter rate.
- Taxon
- strawberry and lettuceFragaria ×ananassaLactuca sativat0
- Outcome
- The lower rate of litter is recommendede0
- Comparator
- AN and the higher litter ratee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lower rate of litter is recommended as it is equally effective to AN and the higher litter rate.”
t0“strawberry and lettuce”
The same questions in other papers
fertilization · yield · Fragaria x ananassa (strawberry)Positive and negative results
192 papers in the same direction as this paper · 34 in the opposite direction · 2 reporting no difference from an alternative
- positive
- positive
- positive
225 papers more in this group
See all 229 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.