Abstract
Abstract Muskmelons (Cucumis melo L.) were transplanted through clear plastic mulch on May 22, 1981, with 45, 90, 135, or 180 kg N/ha applied either preplant broadcast incorporated or injected through the trickle system. Seventy percent of the N rate was injected by flowering (June 23) and the remaining 30% from June 23 to July 27, just prior to first harvest. Muskmelon petiole NO3‐N concentration increased linearly with increasing N rates on all sampling dates for both application treatments. Trickle injected N resulted in a significantly higher plant N03‐N petiole concentration on June 22. Later in the season, July 13 and August 3, there were no petiole NO3‐N concentration differences between the application methods. Marketable early and total yields were not affected by the N rate or application method; but the broadcast method, as compared with trickle injection, increased total fruit per plant by 12%. Soluble: solids and fruit size were not affected by the Nirate on application method; but the broadcast method, as compared with trickle injection, increased total fruit per plant by 12%. Soluble solids and fruit size were not affected by the N rate or application method. Key words: irrigationplant analysisnitrate‐nitrogen Notes Journal Paper No. J‐11270 of the Iowa Agriculture and Home Economics Experiment Station, Ames. Project No. 2137.
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Claims 5
Claim · model-written summary
Petiole nitrate increased linearly with nitrogen rate across sampling dates and methods.
- Taxon
- Muskmelon
.jpg?width=60)
Cucumis meloe0 - Treatment
- increasing N ratese0
- Outcome
- petiole NO3‐N concentratione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Muskmelon petiole NO3‐N concentration increased linearly with increasing N rates on all sampling dates for both application treatments”
Claim · model-written summary
Trickle injection produced higher petiole nitrate on June 22.
- Taxon
- MuskmelonsCucumis melot0
- Treatment
- Trickle injected Ne0
- Outcome
- N03‐N petiole concentratione0
- Direction
- highere0
- Qualifier
- June 22e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Trickle injected N resulted in a significantly higher plant N03‐N petiole concentration on June 22”
t0“Muskmelons”
Claim · model-written summary
Petiole nitrate did not differ by application method on July 13 or August 3.
- Taxon
- MuskmelonsCucumis melot0
- Treatment
- application methodse0
- Outcome
- petiole NO3‐N concentratione0
- Direction
- noe0
- Qualifier
- July 13 and August 3e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“July 13 and August 3, there were no petiole NO3‐N concentration differences between the application methods”
t0“Muskmelons”
Claim · model-written summary
Early and total marketable yields were unaffected by nitrogen rate or application method.
- Taxon
- MuskmelonsCucumis melot0
- Treatment
- N rate or application methode0
- Outcome
- Marketable early and total yieldse0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Marketable early and total yields were not affected by the N rate or application method”
t0“Muskmelons”
Claim · model-written summary
Soluble solids and fruit size were unaffected by nitrogen rate or application method.
- Taxon
- MuskmelonsCucumis melot0
- Treatment
- N rate or application methode0
- Outcome
- Soluble solids and fruit sizee0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soluble solids and fruit size were not affected by the N rate or application method”
t0“Muskmelons”
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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.