Abstract
One of the fast responding methods of plants to fertilizer application is foliar application, which saves fertilizer consumption too. Foliar application of micronutrients is a useful method, especially when roots are unable to absorb necessary elements from soil. The amount of available iron (Fe) in calcareous soils, with high pH, is low for sensitive plants, such as sorghum, to Fe deficiency. To compare the effect of foliar application of different Fe sources on growth traits, concentration and uptake of nutrients in sorghum, a greenhouse experiment was conducted as a completely randomized design with three replications. Treatments consisted of three levels of Fe (0, 90 and 180 mg Fe/L) from three sources of Fe (Fe nano-chelate, Fe-EDDHA and FeSO4.7H2O). Results showed that application of all three sources of Fe increased shoot and root dry matter yield, plant height, leaf chlorophyll content, shoot Fe concentration and uptake as compared to control treatment. Foliar application of Fe reduced concentrations of P and Mn in shoot, but had no significant effect on root P, Mn and Fe concentrations. Concentration of Zn and Cu in shoot and root of sorghum was not affected by level of Fe application. Based on the results of this experiment, foliar application of FeSO4.7H2O compared to Fe-EDDHA and Fe nano-chelate can increase growth and improve some characteristics of sorghum plants under greenhouse conditions. This result is economically affordable as well.
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Claims 12
Claim · model-written summary
Fe nano-chelate increased shoot and root dry matter yield and height over control.
- Treatment
- Fe nano-chelatee0
- Outcome
- shoot and root dry matter yield, plant heighte1
- Direction
- increasede1
- Comparator
- control treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“sorghum”
e0“three sources of Fe (Fe nano-chelate, Fe-EDDHA and FeSO4.7H2O)”
e1“application of all three sources of Fe increased shoot and root dry matter yield, plant height, leaf chlorophyll content, shoot Fe concentration and uptake as compared to control treatment”
Claim · model-written summary
Fe-EDDHA increased shoot and root dry matter yield and height over control.
- Treatment
- Fe-EDDHAe0
- Outcome
- shoot and root dry matter yield, plant heighte1
- Direction
- increasede1
- Comparator
- control treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“sorghum”
e0“three sources of Fe (Fe nano-chelate, Fe-EDDHA and FeSO4.7H2O)”
e1“application of all three sources of Fe increased shoot and root dry matter yield, plant height, leaf chlorophyll content, shoot Fe concentration and uptake as compared to control treatment”
Claim · model-written summary
FeSO4.7H2O increased shoot and root dry matter yield and height over control.
- Treatment
- FeSO4.7H2Oe0
- Outcome
- shoot and root dry matter yield, plant heighte1
- Direction
- increasede1
- Comparator
- control treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“sorghum”
e0“three sources of Fe (Fe nano-chelate, Fe-EDDHA and FeSO4.7H2O)”
e1“application of all three sources of Fe increased shoot and root dry matter yield, plant height, leaf chlorophyll content, shoot Fe concentration and uptake as compared to control treatment”
Claim · model-written summary
Fe nano-chelate increased leaf chlorophyll and shoot Fe concentration and uptake over control.
- Treatment
- Fe nano-chelatee0
- Outcome
- leaf chlorophyll content, shoot Fe concentration and uptakee1
- Direction
- increasede1
- Comparator
- control treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“sorghum”
e0“three sources of Fe (Fe nano-chelate, Fe-EDDHA and FeSO4.7H2O)”
e1“application of all three sources of Fe increased shoot and root dry matter yield, plant height, leaf chlorophyll content, shoot Fe concentration and uptake as compared to control treatment”
Claim · model-written summary
Fe-EDDHA increased leaf chlorophyll and shoot Fe concentration and uptake over control.
- Treatment
- Fe-EDDHAe0
- Outcome
- leaf chlorophyll content, shoot Fe concentration and uptakee1
- Direction
- increasede1
- Comparator
- control treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“sorghum”
e0“three sources of Fe (Fe nano-chelate, Fe-EDDHA and FeSO4.7H2O)”
e1“application of all three sources of Fe increased shoot and root dry matter yield, plant height, leaf chlorophyll content, shoot Fe concentration and uptake as compared to control treatment”
Claim · model-written summary
FeSO4.7H2O increased leaf chlorophyll and shoot Fe concentration and uptake over control.
- Treatment
- FeSO4.7H2Oe0
- Outcome
- leaf chlorophyll content, shoot Fe concentration and uptakee1
- Direction
- increasede1
- Comparator
- control treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“sorghum”
e0“three sources of Fe (Fe nano-chelate, Fe-EDDHA and FeSO4.7H2O)”
e1“application of all three sources of Fe increased shoot and root dry matter yield, plant height, leaf chlorophyll content, shoot Fe concentration and uptake as compared to control treatment”
Claim · model-written summary
Foliar iron reduced shoot P and Mn concentrations.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“sorghum”
e0“Foliar application of Fe reduced concentrations of P and Mn in shoot, but had no significant effect on root P, Mn and Fe concentrations.”
Claim · model-written summary
Foliar iron had no significant effect on root P, Mn and Fe concentrations.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“sorghum”
e0“Foliar application of Fe reduced concentrations of P and Mn in shoot, but had no significant effect on root P, Mn and Fe concentrations.”
Claim · model-written summary
Iron application level did not affect shoot Zn and Cu concentrations.
- Organ / stage
- shoote0
- Treatment
- level of Fe applicatione0
- Outcome
- Concentration of Zn and Cue0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Concentration of Zn and Cu in shoot and root of sorghum was not affected by level of Fe application.”
Claim · model-written summary
Iron application level did not affect root Zn and Cu concentrations.
- Organ / stage
- roote0
- Treatment
- level of Fe applicatione0
- Outcome
- Concentration of Zn and Cue0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Concentration of Zn and Cu in shoot and root of sorghum was not affected by level of Fe application.”
Claim · model-written summary
The authors conclude FeSO4.7H2O can improve sorghum growth and characteristics relative to other Fe sources in a greenhouse.
- Treatment
- foliar application of FeSO4.7H2Oe0
- Outcome
- growthe0
- Direction
- increasee0
- Qualifier
- improve some characteristicse0
- Comparator
- Fe-EDDHA and Fe nano-chelatee0
- Setting
- greenhouse conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“foliar application of FeSO4.7H2O compared to Fe-EDDHA and Fe nano-chelate can increase growth and improve some characteristics of sorghum plants under greenhouse conditions”
Claim · model-written summary
The authors judge the FeSO4.7H2O result economically affordable.
- Outcome
- economically affordablee0
Not reportedTaxon
Verbatim
e0“This result is economically affordable as well.”
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