Abstract
Abstract In two experiments, ‘Charm’ and ‘Delano’ chrysanthemum [Dendranthema x grandiflorum (Ramat.) Kitamura] were grown in a peat‐based root medium using standard greenhouse cultural practices. Fertilization treatments included (1) alternate liquid fertilization (ALF): water‐soluble formulation of 15N‐4.3P‐24.9K (15–10–30) at 536 mgL‐1 N alternated with tap water irrigation; (2) Constant Liquid Fertilization (CLF): 15N‐4.3P‐24.9K(15–10–30)at268 mgL‐1 Napplied at each irrigation; (3) slow release resin‐coated fertilizer (SRR): slow release formulation of 12N‐4.3P‐14.1K(12–10–17); and (4) slow release tablets (SRT): slow release formulation of 14N‐1.7P‐4.9K (14–4–6). Irrigation volume and timing of application were arbitrary for all plants in the first experiment, but they were determined gravimetrically for each treatment in the second experiment. Irrigation volumes exceeded container capacity by 20 to 30% (leaching fractions of 0.2 to 0.3). Leachate had lower electrical conductivity and higher pH with the slow release products than with liquid fertilizer. All treatments except SRT produced plants which met commercial crop standards and had adequate nutrient levels in shoot tissue. However, root dry mass was higher with slow release fertilizer than with liquid fertilizer. Rootrshoot ratios were ranked SRT>SRR>ALF=CLF. Root data suggest that an advantage of SR fertilization over LF fertilization is that greater root mass will develop. Estimations of nitrogen (N) recovery in Experiment 2 suggest that chrysanthemums grown with SRR resulted in most efficient uptake of fertilizer with 64 to 68% of applied N recovered in plant tissue (compared to 41 to 46% from LF treatments) and 18 to 21 % recovered in container leachate (compared to 32 to 41% from LF treatments).
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Claims 8
Claim · model-written summary
Slow-release products gave leachate with lower electrical conductivity than liquid fertilizer.
- Taxon
- chrysanthemum
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Chrysanthemume0 - Treatment
- slow release productse1
- Outcome
- electrical conductivitye1
- Direction
- lowere1
- Qualifier
- Leachatee1
- Comparator
- liquid fertilizere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpeg?width=500)
Verbatim
e0“'Charm' and 'Delano' chrysanthemum [Dendranthema x grandiflorum (Ramat.) Kitamura]”
e1“Leachate had lower electrical conductivity and higher pH with the slow release products than with liquid fertilizer”
Claim · model-written summary
Slow-release products gave leachate with higher pH than liquid fertilizer.
- Taxon
- chrysanthemumChrysanthemume0
- Treatment
- slow release productse1
- Outcome
- pHe1
- Direction
- highere1
- Qualifier
- Leachatee1
- Comparator
- liquid fertilizere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“'Charm' and 'Delano' chrysanthemum [Dendranthema x grandiflorum (Ramat.) Kitamura]”
e1“Leachate had lower electrical conductivity and higher pH with the slow release products than with liquid fertilizer”
Claim · model-written summary
All treatments except SRT produced chrysanthemum plants that met commercial crop standards.
- Taxon
- chrysanthemumChrysanthemume0
- Treatment
- All treatments except SRTe2
- Outcome
- met commercial crop standardse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“'Charm' and 'Delano' chrysanthemum [Dendranthema x grandiflorum (Ramat.) Kitamura]”
e2“All treatments except SRT produced plants which met commercial crop standards and had adequate nutrient levels in shoot tissue”
Claim · model-written summary
All treatments except SRT gave plants with adequate nutrient levels in shoot tissue.
- Taxon
- chrysanthemumChrysanthemume0
- Organ / stage
- shoot tissuee2
- Treatment
- All treatments except SRTe2
- Outcome
- adequate nutrient levelse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“'Charm' and 'Delano' chrysanthemum [Dendranthema x grandiflorum (Ramat.) Kitamura]”
e2“All treatments except SRT produced plants which met commercial crop standards and had adequate nutrient levels in shoot tissue”
Claim · model-written summary
Root dry mass was higher with slow-release fertilizer than with liquid fertilizer.
- Taxon
- chrysanthemumChrysanthemume0
- Organ / stage
- roote3
- Treatment
- slow release fertilizere3
- Outcome
- root dry masse3
- Direction
- highere3
- Comparator
- liquid fertilizere3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“'Charm' and 'Delano' chrysanthemum [Dendranthema x grandiflorum (Ramat.) Kitamura]”
e3“root dry mass was higher with slow release fertilizer than with liquid fertilizer”
Claim · model-written summary
Root-to-shoot ratios were ranked SRT, then SRR, then ALF and CLF.
- Taxon
- chrysanthemumChrysanthemume0
- Treatment
- SRT>SRR>ALF=CLFe4
- Outcome
- Rootrshoot ratiose4
- Direction
- rankede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“'Charm' and 'Delano' chrysanthemum [Dendranthema x grandiflorum (Ramat.) Kitamura]”
e4“Rootrshoot ratios were ranked SRT>SRR>ALF=CLF”
Claim · model-written summary
Chrysanthemums grown with SRR recovered more applied nitrogen in plant tissue (64 to 68%) than liquid fertilizer treatments (41 to 46%).
- Taxon
- chrysanthemumChrysanthemume0
- Treatment
- SRRe5
- Outcome
- N recovered in plant tissuee5
- Direction
- most efficiente5
- Value
- 64 to 68%e5
- Comparator
- LF treatmentse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“'Charm' and 'Delano' chrysanthemum [Dendranthema x grandiflorum (Ramat.) Kitamura]”
e5“Estimations of nitrogen (N) recovery in Experiment 2 suggest that chrysanthemums grown with SRR resulted in most efficient uptake of fertilizer with 64 to 68% of applied N recovered in plant tissue (compared to 41 to 46% from LF treatments)”
Claim · model-written summary
SRR recovered less applied nitrogen in container leachate (18 to 21%) than liquid fertilizer treatments (32 to 41%).
- Taxon
- chrysanthemumChrysanthemume0
- Treatment
- SRRe7
- Outcome
- recovered in container leachatee6
- Direction
- lowerinferrede6
- Value
- 18 to 21 %e6
- Comparator
- LF treatmentse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“'Charm' and 'Delano' chrysanthemum [Dendranthema x grandiflorum (Ramat.) Kitamura]”
e6“18 to 21 % recovered in container leachate (compared to 32 to 41% from LF treatments)”
e7“chrysanthemums grown with SRR”
The same questions in other papers
fertilization · growth · ChrysanthemumPositive and negative results
48 papers in the same direction as this paper · 3 in the opposite direction
- positive
- negative
- no effect
48 papers more in this group
See all 52 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.