Abstract
Impatiens were grown in media containing either hydrated or carbonate dolomitic lime and subirrigated for 17 weeks with four irrigation water qualities (IWQ) and three water-soluble fertilizers (WSF). The WSF concentration was 14N–0.6P–5K mol·m –3 but contained either 50%, 25 %, or 3 % NH 4 -N. After 8 weeks, rootmedium pH ranged from 4.5 to 8.0. In general, the higher the percent NH 4 -N content of the WSF, the lower the root-medium pH, although there were significant interactions between IWQ and lime type with WSF on root-medium pH. With the same WSF, the concentration of NH 4 -N measured in the root media depended on root-medium pH. For example, with WSF containing 50% NH 4 -N, root-medium pH with the various IWQ ranged from 4.5 to 6.0, and media NH 4 -N ranged from 5.0 to 0.1 mol N/m 3 . Tissue N concentrations were higher with the higher NH 4 : NO 4 ratio WSF at all four sampling dates. The effect of IWQ on tissue N resulted from the root-medium pH effects produced by the various IWQ/WSF combinations. Shoot fresh and dry weights were unaffected by the NH 4 : NO 3 ratios in the WSF.
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Claims 9
Claim · model-written summary
Higher NH4-N content of the water-soluble fertilizer was associated with lower root-medium pH.
ImpatiensOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Impatiens were grown in media containing either hydrated or carbonate dolomitic lime”
e2“the higher the percent NH 4 -N content of the WSF, the lower the root-medium pH”
Claim · model-written summary
Irrigation water quality and lime type interacted significantly with fertilizer form to affect root-medium pH.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Impatiens were grown in media containing either hydrated or carbonate dolomitic lime”
e3“there were significant interactions between IWQ and lime type with WSF on root-medium pH”
Claim · model-written summary
Root-medium pH ranged from 4.5 to 8.0 after 8 weeks.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Impatiens were grown in media containing either hydrated or carbonate dolomitic lime”
e4“After 8 weeks, rootmedium pH ranged from 4.5 to 8.0”
Claim · model-written summary
Media NH4-N concentration depended on root-medium pH.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Impatiens were grown in media containing either hydrated or carbonate dolomitic lime”
e5“the concentration of NH 4 -N measured in the root media depended on root-medium pH”
Claim · model-written summary
With 50% NH4-N fertilizer, media NH4-N ranged from 5.0 to 0.1 mol N/m3.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Impatiens were grown in media containing either hydrated or carbonate dolomitic lime”
e6“media NH 4 -N ranged from 5.0 to 0.1 mol N/m 3”
e7“with WSF containing 50% NH 4 -N, root-medium pH with the various IWQ ranged from 4.5 to 6.0”
Claim · model-written summary
With 50% NH4-N fertilizer, root-medium pH ranged from 4.5 to 6.0 across irrigation water qualities.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Impatiens were grown in media containing either hydrated or carbonate dolomitic lime”
e7“with WSF containing 50% NH 4 -N, root-medium pH with the various IWQ ranged from 4.5 to 6.0”
Claim · model-written summary
Tissue N concentrations were higher with the higher NH4:NO3 ratio fertilizer at all four sampling dates.
- Treatment
- higher NH 4 : NO 4 ratio WSFe1
- Outcome
- Tissue N concentrationse1
- Direction
- highere1
- Qualifier
- at all four sampling datese1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Impatiens were grown in media containing either hydrated or carbonate dolomitic lime”
e1“Tissue N concentrations were higher with the higher NH 4 : NO 4 ratio WSF at all four sampling dates”
Claim · model-written summary
The effect of irrigation water quality on tissue N resulted from root-medium pH effects of the irrigation and fertilizer combinations.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Impatiens were grown in media containing either hydrated or carbonate dolomitic lime”
e1“The effect of IWQ on tissue N resulted from the root-medium pH effects produced by the various IWQ/WSF combinations”
Claim · model-written summary
Shoot fresh and dry weights were unaffected by the NH4:NO3 ratio of the fertilizer.
- Organ / stage
- Shoote1
- Treatment
- NH 4 : NO 3 ratios in the WSFe1
- Outcome
- Shoot fresh and dry weightse1
- Direction
- unaffectede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Impatiens were grown in media containing either hydrated or carbonate dolomitic lime”
e1“Shoot fresh and dry weights were unaffected by the NH 4 : NO 3 ratios in the WSF”
The same questions in other papers
fertilization · growth · ImpatiensPositive and negative results
6 in the opposite direction
- positive
- positive
- positive
3 papers more in this group
See all 7 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.