Abstract
Abstract A factorial fertilizer experiment with four N and two B levels was conducted on red raspberry over a 5 year period to determine the effects on leaf element content, fruit size and fruit yields and to determine standard leaf levels for N and B. Nitrogen application increased leaf N, reduced leaf B, increased fruit size and had no effect on yield. Boron application increased leaf B, reduced yields in 2 of the 5 years but had no effect on fruit size. Nitrogen application increased leaf Mn levels but had no effect on leaf element content of K, P, Ca, Mg, Fe, Cu, B or Zn. Boron application had no effect on leaf element content. Leaf N content of the primocanes was not related to following year yields for any of the years. Yields were linearly reduced by primocane leaf B in 1 year. Definitive optimum leaf levels for N and B for red raspberry could not be determined since all levels measured seemed to be adequate, however, it is believed that the optimum value for N is under 2.4% and for B under 25–35 ppm.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 15
Claim · model-written summary
Nitrogen application increased leaf N.
- Taxon
- red raspberry
_Rubus_idaeus_-_Feuillage.jpg?width=60)
Rubus idaeust0 - Treatment
- Nitrogen applicatione0
- Outcome
- leaf Ne0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Rubus_idaeus_-_Feuillage.jpg?width=500)
Verbatim
e0“Nitrogen application increased leaf N, reduced leaf B, increased fruit size and had no effect on yield.”
t0“red raspberry”
Claim · model-written summary
Nitrogen application reduced leaf B.
- Taxon
- red raspberryRubus idaeust0
- Treatment
- Nitrogen applicatione0
- Outcome
- leaf Be0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen application increased leaf N, reduced leaf B, increased fruit size and had no effect on yield.”
t0“red raspberry”
Claim · model-written summary
Nitrogen application increased fruit size.
- Taxon
- red raspberryRubus idaeust0
- Treatment
- Nitrogen applicatione0
- Outcome
- fruit sizee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen application increased leaf N, reduced leaf B, increased fruit size and had no effect on yield.”
t0“red raspberry”
Claim · model-written summary
Nitrogen application had no effect on yield.
- Taxon
- red raspberryRubus idaeust0
- Treatment
- Nitrogen applicatione0
- Outcome
- yielde0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen application increased leaf N, reduced leaf B, increased fruit size and had no effect on yield.”
t0“red raspberry”
Claim · model-written summary
Boron application increased leaf B.
- Taxon
- red raspberryRubus idaeust0
- Treatment
- Boron applicatione0
- Outcome
- leaf Be0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Boron application increased leaf B, reduced yields in 2 of the 5 years but had no effect on fruit size.”
t0“red raspberry”
Claim · model-written summary
Boron application reduced yields in two of five years.
- Taxon
- red raspberryRubus idaeust0
- Treatment
- Boron applicatione0
- Outcome
- yieldse0
- Direction
- reducede0
- Qualifier
- in 2 of the 5 yearse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Boron application increased leaf B, reduced yields in 2 of the 5 years but had no effect on fruit size.”
t0“red raspberry”
Claim · model-written summary
Boron application had no effect on fruit size.
- Taxon
- red raspberryRubus idaeust0
- Treatment
- Boron applicatione0
- Outcome
- fruit sizee0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Boron application increased leaf B, reduced yields in 2 of the 5 years but had no effect on fruit size.”
t0“red raspberry”
Claim · model-written summary
Nitrogen application increased leaf Mn levels.
- Taxon
- red raspberryRubus idaeust0
- Treatment
- Nitrogen applicatione0
- Outcome
- leaf Mn levelse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen application increased leaf Mn levels but had no effect on leaf element content of K, P, Ca, Mg, Fe, Cu, B or Zn.”
t0“red raspberry”
Claim · model-written summary
Nitrogen application had no effect on leaf K, P, Ca, Mg, Fe, Cu, B or Zn content.
- Taxon
- red raspberryRubus idaeust0
- Treatment
- Nitrogen applicatione0
- Outcome
- leaf element content of K, P, Ca, Mg, Fe, Cu, B or Zne0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen application increased leaf Mn levels but had no effect on leaf element content of K, P, Ca, Mg, Fe, Cu, B or Zn.”
t0“red raspberry”
Claim · model-written summary
Boron application had no effect on leaf element content.
- Taxon
- red raspberryRubus idaeust0
- Treatment
- Boron applicatione0
- Outcome
- leaf element contente0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Boron application had no effect on leaf element content.”
t0“red raspberry”
Claim · model-written summary
Primocane leaf N was unrelated to following year yields in every year.
- Taxon
- red raspberryRubus idaeust0
- Organ / stage
- primocanese0
- Outcome
- following year yieldse0
- Direction
- not relatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf N content of the primocanes was not related to following year yields for any of the years.”
t0“red raspberry”
Claim · model-written summary
Yield decreased linearly with primocane leaf B in one year.
- Taxon
- red raspberryRubus idaeust0
- Organ / stage
- primocane leafe0
- Outcome
- Yieldse0
- Direction
- reducede0
- Qualifier
- in 1 yeare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yields were linearly reduced by primocane leaf B in 1 year.”
t0“red raspberry”
Claim · model-written summary
Definitive optimum leaf N and B levels could not be determined.
- Taxon
- red raspberryRubus idaeust0
- Outcome
- optimum leaf levels for N and Be0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Definitive optimum leaf levels for N and B for red raspberry could not be determined since all levels measured seemed to be adequate”
t0“red raspberry”
Claim · model-written summary
The authors believed optimum leaf N is under 2.4%.
- Taxon
- red raspberryRubus idaeust0
- Outcome
- optimum value for Ne0
- Value
- 2.4%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it is believed that the optimum value for N is under 2.4% and for B under 25–35 ppm.”
t0“red raspberry”
Claim · model-written summary
The authors believed optimum leaf B is under 25–35 ppm.
- Taxon
- red raspberryRubus idaeust0
- Outcome
- for Be0
- Value
- 25–35 ppme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it is believed that the optimum value for N is under 2.4% and for B under 25–35 ppm.”
t0“red raspberry”
The same questions in other papers
boron atom · yield · Rubus idaeus (red raspberry)Results differ
2 in the opposite direction
- positive
- positive
nitrogen · yield · Rubus idaeus (red raspberry)Results differ
5 papers in the same direction as this paper · 1 in the opposite direction · 1 reporting no difference from an alternative
- positive
- no effect
- no effect
4 papers more in this group
See all 8 papers →nitrogen · molecular: metabolites · Rubus idaeus (red raspberry)Positive and negative results
2 in the opposite direction
- positive
- positive
nitrogen · nutrient: content · Rubus idaeus (red raspberry)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.