Abstract
This research was conducted to evaluate effect of potassium and iron fertilizers on agro-physiological traits affected different irrigation regime of corn in Shahryar (Tehran province, central of Iran) via a split-split plots arrangement based on randomized complete blocks design with three replications during 2015. The main plot included different irrigation regime (Normal irrigation and stop irrigation at grain filling period). Sub plot consisted different level of K2O (0, 25, 50 kg.ha-1), from water soluble potassium sulfate source. Sub-sub plot included Fe-EDDHA that apply as fertigation 2 kg.ha-1, foliar application Fe-EDTA 2 kg.ha-1, and no iron fertilizer application as control. Application of Fe-EDDHA as fertigation and Fe-EDTA as foliar application in normal irrigation increased corn seed yield from 5232 kg.ha-1 in control to 6622 and 6464 kg.ha-1 respectively but in water deficit situation were not effective. In normal irrigation, application 25 and 50 kg.ha-1 soluble potassium sulfate increased corn seed yield from 5294 kg.ha-1 in control to 6975 and 6048 kg.ha-1 respectively. Under water deficit stress application of 25 and 50 kg.ha-1 soluble potassium sulfate increased corn seed yield from 3921 kg.ha-1 to 4794 and 4807 kg.ha-1 respectively. Maximum corn seed yield was achieved when 25 kg.ha-1 soluble potassium sulfate and Fe-EDDHA applied together in 6392 kg.ha-1. Application soluble potassium sulfate and iron fertilizers increased chlorophyll a, b, and total content in different irrigation regimes. However fertigation of soluble potassium sulfate along with Fe-EDDHA was more efficient to improve chlorophyll a, b, and total and seed yield in water deficit situation.
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Claims 10
Claim · model-written summary
Fe-EDDHA fertigation increased corn seed yield in normal irrigation to 6622 kg/ha from 5232 kg/ha in the control
- Taxon
- corn
Zea mays subsp. mayse1 - Treatment
- Fe-EDDHA as fertigatione1
- Outcome
- corn seed yielde1
- Direction
- increasede1
- Value
- 6622e1
- Qualifier
- 5232 kg.ha-1e1
- Comparator
- controle1
- Setting
- Shahryar (Tehran province, central of Iran)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“corn in Shahryar (Tehran province, central of Iran)”
e1“Application of Fe-EDDHA as fertigation and Fe-EDTA as foliar application in normal irrigation increased corn seed yield from 5232 kg.ha-1 in control to 6622 and 6464 kg.ha-1 respectively but in water deficit situation were not effective”
Claim · model-written summary
Fe-EDTA foliar application increased corn seed yield in normal irrigation to 6464 kg/ha from 5232 kg/ha in the control
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- Fe-EDTA as foliar applicatione1
- Outcome
- corn seed yielde1
- Direction
- increasede1
- Value
- 6464e1
- Qualifier
- 5232 kg.ha-1e1
- Comparator
- controle1
- Setting
- Shahryar (Tehran province, central of Iran)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“corn in Shahryar (Tehran province, central of Iran)”
e1“Application of Fe-EDDHA as fertigation and Fe-EDTA as foliar application in normal irrigation increased corn seed yield from 5232 kg.ha-1 in control to 6622 and 6464 kg.ha-1 respectively but in water deficit situation were not effective”
Claim · model-written summary
Fe-EDDHA fertigation and Fe-EDTA foliar application were not effective for corn seed yield in water deficit
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- Fe-EDDHA as fertigation and Fe-EDTA as foliar applicatione1
- Outcome
- corn seed yielde1
- Direction
- no_changeinferrede1
- Qualifier
- in water deficit situatione1
- Setting
- Shahryar (Tehran province, central of Iran)e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“corn in Shahryar (Tehran province, central of Iran)”
e1“Application of Fe-EDDHA as fertigation and Fe-EDTA as foliar application in normal irrigation increased corn seed yield from 5232 kg.ha-1 in control to 6622 and 6464 kg.ha-1 respectively but in water deficit situation were not effective”
Claim · model-written summary
Soluble potassium sulfate at 25 kg/ha increased corn seed yield in normal irrigation to 6975 kg/ha from 5294 kg/ha in the control
- Taxon
- cornZea mays subsp. mayse2
- Treatment
- 25 and 50 kg.ha-1 soluble potassium sulfatee2
- Outcome
- corn seed yielde2
- Direction
- increasede2
- Value
- 6975e2
- Qualifier
- 5294 kg.ha-1e2
- Comparator
- controle2
- Setting
- Shahryar (Tehran province, central of Iran)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“corn in Shahryar (Tehran province, central of Iran)”
e2“In normal irrigation, application 25 and 50 kg.ha-1 soluble potassium sulfate increased corn seed yield from 5294 kg.ha-1 in control to 6975 and 6048 kg.ha-1 respectively”
Claim · model-written summary
Soluble potassium sulfate at 50 kg/ha increased corn seed yield in normal irrigation to 6048 kg/ha from 5294 kg/ha in the control
- Taxon
- cornZea mays subsp. mayse2
- Treatment
- 25 and 50 kg.ha-1 soluble potassium sulfatee2
- Outcome
- corn seed yielde2
- Direction
- increasede2
- Value
- 6048e2
- Qualifier
- 5294 kg.ha-1e2
- Comparator
- controle2
- Setting
- Shahryar (Tehran province, central of Iran)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“corn in Shahryar (Tehran province, central of Iran)”
e2“In normal irrigation, application 25 and 50 kg.ha-1 soluble potassium sulfate increased corn seed yield from 5294 kg.ha-1 in control to 6975 and 6048 kg.ha-1 respectively”
Claim · model-written summary
Soluble potassium sulfate at 25 kg/ha increased corn seed yield under water deficit to 4794 kg/ha
- Taxon
- cornZea mays subsp. mayse3
- Treatment
- 25 and 50 kg.ha-1 soluble potassium sulfatee3
- Outcome
- corn seed yielde3
- Direction
- increasede3
- Value
- 4794e3
- Qualifier
- Under water deficit stresse3
- Setting
- Shahryar (Tehran province, central of Iran)e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“corn in Shahryar (Tehran province, central of Iran)”
e3“Under water deficit stress application of 25 and 50 kg.ha-1 soluble potassium sulfate increased corn seed yield from 3921 kg.ha-1 to 4794 and 4807 kg.ha-1 respectively”
Claim · model-written summary
Soluble potassium sulfate at 50 kg/ha increased corn seed yield under water deficit to 4807 kg/ha
- Taxon
- cornZea mays subsp. mayse3
- Treatment
- 25 and 50 kg.ha-1 soluble potassium sulfatee3
- Outcome
- corn seed yielde3
- Direction
- increasede3
- Value
- 4807e3
- Qualifier
- Under water deficit stresse3
- Setting
- Shahryar (Tehran province, central of Iran)e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“corn in Shahryar (Tehran province, central of Iran)”
e3“Under water deficit stress application of 25 and 50 kg.ha-1 soluble potassium sulfate increased corn seed yield from 3921 kg.ha-1 to 4794 and 4807 kg.ha-1 respectively”
Claim · model-written summary
Maximum corn seed yield, 6392 kg/ha, was reached when 25 kg/ha soluble potassium sulfate and Fe-EDDHA were applied together
- Taxon
- cornZea mays subsp. mayse4
- Treatment
- 25 kg.ha-1 soluble potassium sulfate and Fe-EDDHA applied togethere4
- Outcome
- corn seed yielde4
- Direction
- Maximume4
- Value
- 6392 kg.ha-1e4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“corn in Shahryar (Tehran province, central of Iran)”
e4“Maximum corn seed yield was achieved when 25 kg.ha-1 soluble potassium sulfate and Fe-EDDHA applied together in 6392 kg.ha-1”
Claim · model-written summary
Soluble potassium sulfate with iron fertilizers increased chlorophyll a, b and total content in different irrigation regimes
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- soluble potassium sulfate and iron fertilizerse5
- Outcome
- chlorophyll a, b, and total contente5
- Direction
- increasede5
- Qualifier
- in different irrigation regimese5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“corn in Shahryar (Tehran province, central of Iran)”
e5“Application soluble potassium sulfate and iron fertilizers increased chlorophyll a, b, and total content in different irrigation regimes”
Claim · model-written summary
Fertigation of soluble potassium sulfate with Fe-EDDHA was more efficient than the other treatments for chlorophyll and seed yield under water deficit
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- fertigation of soluble potassium sulfate along with Fe-EDDHAe6
- Outcome
- chlorophyll a, b, and total and seed yielde6
- Direction
- more efficiente6
- Qualifier
- in water deficit situatione6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“corn in Shahryar (Tehran province, central of Iran)”
e6“fertigation of soluble potassium sulfate along with Fe-EDDHA was more efficient to improve chlorophyll a, b, and total and seed yield in water deficit situation”
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