Abstract
The objective of this study was to investigate the impact of foliar zinc application in the form of zinc hydroxy nitrate suspensions on maize grain yield and quality and on zinc distribution in the plant organs. The preparation of the zinc hydroxide nitrate (Zn5(OH)8(NO3)2·2H2O) was performed by pouring a NaOH solution into Zn(NO3)2·6H2O under vigorous stirring. All samples were characterized in detail by X-ray diffraction, scanning electron microscopy, thermal analysis, and inductively coupled plasma (ICP) mass spectrometry to determine their content, morphology and physicochemical properties. The field experiment was conducted at the Research Farm, Agricultural University, Bulgaria, via a randomized block design with eight variants in 3 replications. A significant (p < 0.05) effect on Zn accumulation in the maize stems and leaves by foliar zinc application during the first growth stage was found. The accumulation of zinc was followed by its remobilization from the stems to other plant organs during the second growth stage. It was concluded that the synthesized zinc hydroxy nitrate has potential as a long-term foliar fertilizer. Ensuring the optimal concentration of Zn at different times during the vegetative period lead to a substantial increase in the grain yield along with an improvement in the quality of the corn grain for all variants compared to those of the control.
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Claims 5
Claim · model-written summary
Early foliar zinc application significantly affected zinc accumulation in maize stems and leaves.
- Treatment
- foliar zinc applicatione0
- Outcome
- Zn accumulation in the maize stems and leavese0
- Qualifier
- during the first growth stagee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“A significant (p < 0.05) effect on Zn accumulation in the maize stems and leaves by foliar zinc application during the first growth stage was found.”
Claim · model-written summary
During the second growth stage, zinc moved from stems to other organs.
- Outcome
- remobilization from the stems to other plant organse0
- Qualifier
- during the second growth stagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The accumulation of zinc was followed by its remobilization from the stems to other plant organs during the second growth stage.”
t0“maize”
Claim · model-written summary
The authors conclude that synthesized zinc hydroxy nitrate has potential as a long term foliar fertilizer.
- Outcome
- potential as a long-term foliar fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the synthesized zinc hydroxy nitrate has potential as a long-term foliar fertilizer.”
t0“maize”
Claim · model-written summary
Optimal zinc concentration management increased maize grain yield versus the control.
- Taxon
- corn
Zea mays subsp. mayse0
- Treatment
- optimal concentration of Zn at different times during the vegetative periode0
- Outcome
- grain yielde0
- Direction
- substantial increasee0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ensuring the optimal concentration of Zn at different times during the vegetative period lead to a substantial increase in the grain yield along with an improvement in the quality of the corn grain for all variants compared to those of the control.”
Claim · model-written summary
Optimal zinc concentration management improved corn grain quality versus the control.
- Taxon
- corn
Zea mays subsp. mayse0
- Treatment
- optimal concentration of Zn at different times during the vegetative periode0
- Outcome
- quality of the corn graine0
- Direction
- improvemente0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ensuring the optimal concentration of Zn at different times during the vegetative period lead to a substantial increase in the grain yield along with an improvement in the quality of the corn grain for all variants compared to those of the control.”
The same questions in other papers
zinc atom · yield · Zea mays (maize)Results differ
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- negative
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See all 441 papers →zinc atom · quality: general · Zea mays (maize)Results agree
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- positive
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See all 11 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.