Abstract
The effects of foliar application of urea (10, 20, 25 and 30%) as the main source of N on the growth and leaf N composition of the guava cultivars Sardar and Allahabad Safeda were determined in a field experiment conducted in Lucknow, Uttar Pradesh, India. Urea-N, ammonium-N and nitrate-N in the shoot and fruits were highest with the single application of 30% urea and double application of 20% urea in Allahabad Safeda and Sardar, respectively. Crop yield in both cultivars decreased with increasing urea concentration during the rainy season. Fruit weight, total soluble solids, and ascorbic acid and reducing sugar content were highest with foliar spraying of 25% urea on Allahabad Safeda and decreased with increasing urea concentration in Sardar.
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Claims 5
Claim · model-written summary
Shoot and fruit urea-N, ammonium-N and nitrate-N were highest after a single 30% urea application in Allahabad Safeda.
- Taxon
- guava
Psidium guajavat0 - Material
- Allahabad Safedae0
- Treatment
- single application of 30% ureae0
- Outcome
- Urea-N, ammonium-N and nitrate-N in the shoot and fruitse0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“guava (Psidium guajava L.)”
e0“Urea-N, ammonium-N and nitrate-N in the shoot and fruits were highest with the single application of 30% urea and double application of 20% urea in Allahabad Safeda and Sardar, respectively.”
Claim · model-written summary
Shoot and fruit urea-N, ammonium-N and nitrate-N were highest after a double 20% urea application in Sardar.
- Taxon
- guavaPsidium guajavat0
- Material
- Sardare0
- Treatment
- double application of 20% ureae0
- Outcome
- Urea-N, ammonium-N and nitrate-N in the shoot and fruitse0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“guava (Psidium guajava L.)”
e0“Urea-N, ammonium-N and nitrate-N in the shoot and fruits were highest with the single application of 30% urea and double application of 20% urea in Allahabad Safeda and Sardar, respectively.”
Claim · model-written summary
Rainy-season crop yield declined with increasing urea concentration in both cultivars.
- Taxon
- guavaPsidium guajavat0
- Treatment
- increasing urea concentratione0
- Outcome
- Crop yielde0
- Direction
- decreasede0
- Qualifier
- during the rainy seasone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“guava (Psidium guajava L.)”
e0“Crop yield in both cultivars decreased with increasing urea concentration during the rainy season.”
Claim · model-written summary
Fruit weight, total soluble solids, ascorbic acid and reducing sugar content were highest with 25% foliar urea in Allahabad Safeda.
- Taxon
- guavaPsidium guajavat0
- Material
- Allahabad Safedae0
- Treatment
- foliar spraying of 25% ureae0
- Outcome
- Fruit weight, total soluble solids, and ascorbic acid and reducing sugar contente0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“guava (Psidium guajava L.)”
e0“Fruit weight, total soluble solids, and ascorbic acid and reducing sugar content were highest with foliar spraying of 25% urea on Allahabad Safeda”
Claim · model-written summary
Fruit weight, total soluble solids, ascorbic acid and reducing sugar content decreased with increasing urea concentration in Sardar.
- Taxon
- guavaPsidium guajavat0
- Material
- Sardare0
- Treatment
- increasing urea concentratione0
- Outcome
- Fruit weight, total soluble solids, and ascorbic acid and reducing sugar contente0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“guava (Psidium guajava L.)”
e0“Fruit weight, total soluble solids, and ascorbic acid and reducing sugar content were highest with foliar spraying of 25% urea on Allahabad Safeda and decreased with increasing urea concentration in Sardar.”
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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.