Abstract
Abstract Greenhouse experiment was conducted to study the effect of urea and ammonium nitrate on the uptake of iron through the leaves of plants. Iron from different sources was applied to the foliages of the plants with and without the addition of urea and ammonium nitrate. The iron solution used in the foliar spray contained 400 ppm of iron from FeSO4 · 7H2O, Fe‐EDTA and Fe‐amino acid chelate (Fe‐AA). The nitrogen concentrations in the final solution were 500 and 1000 ppm with half of the nitrogen from urea and other half from ammoniun nitrate. The addition of urea and ammonium nitrate increased the effectiveness of FeS04 · 7H2O used in foliar application. Urea and ammonium nitrate had no effect on Fe‐amino acid chelate but decreased the effectiveness of Fe‐EDTA when the nitrogen concentration was increased to 1000 ppm. On the average, Fe‐amino acid chelate increases the dry matter yield but not FeSO4 · 7H2O and Fe‐EDTA. Nitrogen alone did not significantly affect the dry matter yield. Higher iron concentration in the leaves was obtained by the use of Fe‐amino acid chelate than FeSO4 · 7H2O and Fe‐EDTA. With the chelates, more iron was translocated to the roots than with FeSO4 · 7H2O. Foliar application of Fe‐amino acid chelate increased the manganese concentration in the plants. Addition of urea and ammonium nitrate to the iron solution also increased the uptake of manganese. The increase in manganese in the plants by the foliar application of iron may contribut to the increase in dry matter yield. Key words: Amino Acid ChelateUreaAmmonium NitrateIronFoliar ApplicationCorn
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Claims 12
Claim · model-written summary
Urea and ammonium nitrate increased effectiveness of foliar iron sulfate.
- Taxon
- Corn
Zea mays subsp. mayse0 - Treatment
- addition of urea and ammonium nitratee1
- Outcome
- effectiveness of FeS04 · 7H2Oe1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Key words: Amino Acid ChelateUreaAmmonium NitrateIronFoliar ApplicationCorn”
e1“The addition of urea and ammonium nitrate increased the effectiveness of FeS04 · 7H2O used in foliar application.”
Claim · model-written summary
Urea and ammonium nitrate had no effect on iron amino acid chelate effectiveness.
- Taxon
- CornZea mays subsp. mayse0
- Treatment
- Urea and ammonium nitratee1
- Outcome
- Fe‐amino acid chelatee1
- Direction
- no effecte1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Key words: Amino Acid ChelateUreaAmmonium NitrateIronFoliar ApplicationCorn”
e1“Urea and ammonium nitrate had no effect on Fe‐amino acid chelate”
Claim · model-written summary
At 1000 ppm nitrogen, urea and ammonium nitrate decreased iron EDTA effectiveness.
- Taxon
- CornZea mays subsp. mayse0
- Treatment
- Urea and ammonium nitratee1
- Outcome
- effectiveness of Fe‐EDTAe1
- Direction
- decreasede1
- Qualifier
- nitrogen concentration was increased to 1000 ppme1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Key words: Amino Acid ChelateUreaAmmonium NitrateIronFoliar ApplicationCorn”
e1“Urea and ammonium nitrate had no effect on Fe‐amino acid chelate but decreased the effectiveness of Fe‐EDTA when the nitrogen concentration was increased to 1000 ppm.”
Claim · model-written summary
Iron amino acid chelate increased dry matter yield on average.
- Taxon
- CornZea mays subsp. mayse0
- Treatment
- Fe‐amino acid chelatee1
- Outcome
- dry matter yielde1
- Direction
- increasese1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Key words: Amino Acid ChelateUreaAmmonium NitrateIronFoliar ApplicationCorn”
e1“On the average, Fe‐amino acid chelate increases the dry matter yield but not FeSO4 · 7H2O and Fe‐EDTA.”
Claim · model-written summary
Iron sulfate did not increase dry matter yield.
- Taxon
- CornZea mays subsp. mayse0
- Treatment
- FeSO4 · 7H2Oe1
- Outcome
- dry matter yielde1
- Direction
- no_changeinferrede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Key words: Amino Acid ChelateUreaAmmonium NitrateIronFoliar ApplicationCorn”
e1“Fe‐amino acid chelate increases the dry matter yield but not FeSO4 · 7H2O and Fe‐EDTA.”
Claim · model-written summary
Iron EDTA did not increase dry matter yield.
- Taxon
- CornZea mays subsp. mayse0
- Treatment
- Fe‐EDTAe1
- Outcome
- dry matter yielde1
- Direction
- no_changeinferrede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Key words: Amino Acid ChelateUreaAmmonium NitrateIronFoliar ApplicationCorn”
e1“Fe‐amino acid chelate increases the dry matter yield but not FeSO4 · 7H2O and Fe‐EDTA.”
Claim · model-written summary
Nitrogen alone did not significantly affect dry matter yield.
- Taxon
- CornZea mays subsp. mayse0
- Treatment
- Nitrogen alonee1
- Outcome
- dry matter yielde1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Key words: Amino Acid ChelateUreaAmmonium NitrateIronFoliar ApplicationCorn”
e1“Nitrogen alone did not significantly affect the dry matter yield.”
Claim · model-written summary
Iron amino acid chelate gave higher leaf iron concentration than the other two iron sources.
- Taxon
- CornZea mays subsp. mayse0
- Treatment
- Fe‐amino acid chelatee1
- Outcome
- iron concentration in the leavese1
- Direction
- Highere1
- Comparator
- FeSO4 · 7H2O and Fe‐EDTAe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Key words: Amino Acid ChelateUreaAmmonium NitrateIronFoliar ApplicationCorn”
e1“Higher iron concentration in the leaves was obtained by the use of Fe‐amino acid chelate than FeSO4 · 7H2O and Fe‐EDTA.”
Claim · model-written summary
Chelated iron sources led to more iron translocation to roots than iron sulfate.
- Taxon
- CornZea mays subsp. mayse0
- Treatment
- the chelatese1
- Outcome
- iron was translocated to the rootse1
- Direction
- moree1
- Comparator
- FeSO4 · 7H2Oe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Key words: Amino Acid ChelateUreaAmmonium NitrateIronFoliar ApplicationCorn”
e1“With the chelates, more iron was translocated to the roots than with FeSO4 · 7H2O.”
Claim · model-written summary
Foliar iron amino acid chelate increased plant manganese concentration.
- Taxon
- CornZea mays subsp. mayse0
- Treatment
- Foliar application of Fe‐amino acid chelatee1
- Outcome
- manganese concentration in the plantse1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Key words: Amino Acid ChelateUreaAmmonium NitrateIronFoliar ApplicationCorn”
e1“Foliar application of Fe‐amino acid chelate increased the manganese concentration in the plants.”
Claim · model-written summary
Adding urea and ammonium nitrate to iron solution increased manganese uptake.
- Taxon
- CornZea mays subsp. mayse0
- Treatment
- Addition of urea and ammonium nitrate to the iron solutione1
- Outcome
- uptake of manganesee1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Key words: Amino Acid ChelateUreaAmmonium NitrateIronFoliar ApplicationCorn”
e1“Addition of urea and ammonium nitrate to the iron solution also increased the uptake of manganese.”
Claim · model-written summary
Authors suggested manganese accumulation from foliar iron may contribute to higher dry matter yield.
- Taxon
- CornZea mays subsp. mayse0
- Treatment
- foliar application of irone1
- Compound
- manganesee1
- Outcome
- increase in dry matter yielde1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Key words: Amino Acid ChelateUreaAmmonium NitrateIronFoliar ApplicationCorn”
e1“The increase in manganese in the plants by the foliar application of iron may contribut to the increase in dry matter yield.”
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