Abstract
Abstract Tomatoes (Lycopersicon esculentum Mill.) were grown for two seasons on polyethylene‐mulched beds to evaluate metam‐potassium (metam‐K) as both a fumigant and K source in comparison to metam‐sodium (metam‐Na) fumigant and KCl fertilizer applied preplant or injected. Treatments without fumigation had significantly lower early yield compared to treatments with metam‐Na at 468 or 935 L ha‐1 or metam‐K at 281 L ha‐1 in 1993. There were no significant differences in early yield for 1994. No by‐year interaction for total yield were noted so results were combined for both years. Tomatoes grown with metam‐Na at 468 L ha‐1 produced significantly higher yields than all the other treatments. The leaf K concentration in 1993 was 34 g kg‐1 with metam‐K at 561 L ha‐1 which was greater than treatments with Kcl. However, metam‐K showed little advantage in performance over metam‐Na as a fumigant or KCl as a fertilizer source.
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 7
Claim · model-written summary
Unfumigated treatments had significantly lower early yield than specified metam-Na and metam-K treatments in 1993.
- Taxon
- Lycopersicon esculentum
Solanum lycopersicume1 - Treatment
- without fumigatione0
- Outcome
- early yielde0
- Direction
- lowere0
- Qualifier
- 1993e0
- Comparator
- treatments with metam‐Na at 468 or 935 L ha‐1 or metam‐K at 281 L ha‐1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatments without fumigation had significantly lower early yield compared to treatments with metam‐Na at 468 or 935 L ha‐1 or metam‐K at 281 L ha‐1 in 1993.”
e1“Tomatoes (Lycopersicon esculentum Mill.)”
Claim · model-written summary
Early yield differences in 1994 were not significant.
- Taxon
- Lycopersicon esculentumSolanum lycopersicume1
- Outcome
- early yielde0
- Qualifier
- 1994e0
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were no significant differences in early yield for 1994.”
e1“Tomatoes (Lycopersicon esculentum Mill.)”
Claim · model-written summary
Total yield showed no by-year interaction.
- Taxon
- Lycopersicon esculentumSolanum lycopersicume1
- Outcome
- No by‐year interaction for total yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No by‐year interaction for total yield were noted so results were combined for both years.”
e1“Tomatoes (Lycopersicon esculentum Mill.)”
Claim · model-written summary
Metam-Na at 468 L ha-1 produced significantly higher tomato yields than all other treatments.
- Taxon
- TomatoesSolanum lycopersicume0
- Treatment
- metam‐Na at 468 L ha‐1e0
- Outcome
- yieldse0
- Direction
- highere0
- Comparator
- all the other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomatoes grown with metam‐Na at 468 L ha‐1 produced significantly higher yields than all the other treatments.”
Claim · model-written summary
Leaf potassium was 34 g kg-1 under metam-K at 561 L ha-1 in 1993, greater than with Kcl treatments.
- Taxon
- Lycopersicon esculentumSolanum lycopersicume1
- Treatment
- metam‐K at 561 L ha‐1e0
- Outcome
- leaf K concentratione0
- Direction
- greatere0
- Value
- 34 g kg‐1e0
- Qualifier
- 1993e0
- Comparator
- Kcle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The leaf K concentration in 1993 was 34 g kg‐1 with metam‐K at 561 L ha‐1 which was greater than treatments with Kcl.”
e1“Tomatoes (Lycopersicon esculentum Mill.)”
Claim · model-written summary
Metam-K showed little performance advantage over metam-Na as a fumigant.
- Taxon
- Lycopersicon esculentumSolanum lycopersicume1
- Treatment
- metam‐Ke0
- Outcome
- performancee0
- Direction
- little advantagee0
- Qualifier
- as a fumigante0
- Comparator
- metam‐Nae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However, metam‐K showed little advantage in performance over metam‐Na as a fumigant or KCl as a fertilizer source.”
e1“Tomatoes (Lycopersicon esculentum Mill.)”
Claim · model-written summary
Metam-K showed little performance advantage over KCl as a fertilizer source.
- Taxon
- Lycopersicon esculentumSolanum lycopersicume1
- Treatment
- metam‐Ke0
- Outcome
- performancee0
- Direction
- little advantagee0
- Qualifier
- as a fertilizer sourcee0
- Comparator
- KCle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However, metam‐K showed little advantage in performance over metam‐Na as a fumigant or KCl as a fertilizer source.”
e1“Tomatoes (Lycopersicon esculentum Mill.)”
The same questions in other papers
solarization · yield · Solanum lycopersicum (tomato)Results differ
9 papers in the same direction as this paper · 22 in the opposite direction
- positive
- positive
- positive
28 papers more in this group
See all 32 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.