Abstract
An experiment was carried out in the horticultural development project of the Directorate of Agriculture in Karbala, located in the Um Gharagher area / Al-Husseiniya District - Karbala Governorate, during the growing season 2024 to investigate the response of palm trees of the Barhi variety to fertilization with humic acid and bio-fertilizers in the chemical qualities of date palm leaves Barhi variety. The study was carried out as a factorial experiment (4×4) according to the Completely randomized block design (R.C.B.D). with three replicates, the study included two factors, the first is the addition of humic acid in four concentrations (0, 5, 10 and 15) g 20 liters per palm-1 in four batches and the second is the addition of bio-fertilizers in four concentrations (Control and adding Azotobacter chrooccum bacteria at a concentration of 150 ml 20 liters per palm-1 and Bacillus megatherium at a concentration of 150 ml 20 liters per palm -1 and Azotobacter chrooccum bacteria at a concentration of 75 ml + adding Bacillus megatherium bacteria at a concentration of 75 ml) 20 liters per palm -1. The results showed that the ground addition treatment of humic acid (A15) outperformed the rest of the coefficients by giving the highest averages in the total leaf content of chlorophyll, carbohydrates, protein, nitrogen, phosphorus, and potassium (0.970 mg g-1, 12.376%, 6.397%, 1.024%, 0.495% and 1.293%), respectively. The ground addition treatment of bio-fertilizers (B3) also gave the highest averages in the total leaves content of chlorophyll, carbohydrates, protein, nitrogen, phosphorus, and potassium (0.993 mg g-1, 12.535%, 6.397%, 1.047%, 0.503% and 1.290%), respectively. As for the bilateral interaction between the two study factors, the treatment (A15B3) excelled by recording the highest average of all the studied traits.
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Claims 12
Claim · model-written summary
humic acid (A15) gave the highest leaf chlorophyll of 0.970 mg g-1.
- Taxon
- date palm
Phoenix dactyliferat0 - Organ / stage
- leafe0
- Treatment
- humic acid (A15)e0
- Outcome
- chlorophylle0
- Direction
- higheste0
- Value
- 0.970 mg g-1e0
- Comparator
- rest of the coefficientse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The results showed that the ground addition treatment of humic acid (A15) outperformed the rest of the coefficients by giving the highest averages in the total leaf content of chlorophyll, carbohydrates, protein, nitrogen, phosphorus, and potassium (0.970 mg g-1, 12.376%, 6.397%, 1.024%, 0.495% and 1.293%), respectively.”
t0“date palm”
Claim · model-written summary
humic acid (A15) gave the highest leaf carbohydrates of 12.376%.
- Taxon
- date palm
Phoenix dactyliferat0 - Organ / stage
- leafe0
- Treatment
- humic acid (A15)e0
- Outcome
- carbohydratese0
- Direction
- higheste0
- Value
- 12.376%e0
- Comparator
- rest of the coefficientse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The results showed that the ground addition treatment of humic acid (A15) outperformed the rest of the coefficients by giving the highest averages in the total leaf content of chlorophyll, carbohydrates, protein, nitrogen, phosphorus, and potassium (0.970 mg g-1, 12.376%, 6.397%, 1.024%, 0.495% and 1.293%), respectively.”
t0“date palm”
Claim · model-written summary
humic acid (A15) gave the highest leaf protein of 6.397%.
- Taxon
- date palm
Phoenix dactyliferat0 - Organ / stage
- leafe0
- Treatment
- humic acid (A15)e0
- Outcome
- proteine0
- Direction
- higheste0
- Value
- 6.397%e0
- Comparator
- rest of the coefficientse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The results showed that the ground addition treatment of humic acid (A15) outperformed the rest of the coefficients by giving the highest averages in the total leaf content of chlorophyll, carbohydrates, protein, nitrogen, phosphorus, and potassium (0.970 mg g-1, 12.376%, 6.397%, 1.024%, 0.495% and 1.293%), respectively.”
t0“date palm”
Claim · model-written summary
humic acid (A15) gave the highest leaf nitrogen of 1.024%.
- Taxon
- date palm
Phoenix dactyliferat0 - Organ / stage
- leafe0
- Treatment
- humic acid (A15)e0
- Outcome
- nitrogene0
- Direction
- higheste0
- Value
- 1.024%e0
- Comparator
- rest of the coefficientse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The results showed that the ground addition treatment of humic acid (A15) outperformed the rest of the coefficients by giving the highest averages in the total leaf content of chlorophyll, carbohydrates, protein, nitrogen, phosphorus, and potassium (0.970 mg g-1, 12.376%, 6.397%, 1.024%, 0.495% and 1.293%), respectively.”
t0“date palm”
Claim · model-written summary
humic acid (A15) gave the highest leaf phosphorus of 0.495%.
- Taxon
- date palm
Phoenix dactyliferat0 - Organ / stage
- leafe0
- Treatment
- humic acid (A15)e0
- Outcome
- phosphoruse0
- Direction
- higheste0
- Value
- 0.495%e0
- Comparator
- rest of the coefficientse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The results showed that the ground addition treatment of humic acid (A15) outperformed the rest of the coefficients by giving the highest averages in the total leaf content of chlorophyll, carbohydrates, protein, nitrogen, phosphorus, and potassium (0.970 mg g-1, 12.376%, 6.397%, 1.024%, 0.495% and 1.293%), respectively.”
t0“date palm”
Claim · model-written summary
humic acid (A15) gave the highest leaf potassium of 1.293%.
- Taxon
- date palm
Phoenix dactyliferat0 - Organ / stage
- leafe0
- Treatment
- humic acid (A15)e0
- Outcome
- potassiume0
- Direction
- higheste0
- Value
- 1.293%e0
- Comparator
- rest of the coefficientse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The results showed that the ground addition treatment of humic acid (A15) outperformed the rest of the coefficients by giving the highest averages in the total leaf content of chlorophyll, carbohydrates, protein, nitrogen, phosphorus, and potassium (0.970 mg g-1, 12.376%, 6.397%, 1.024%, 0.495% and 1.293%), respectively.”
t0“date palm”
Claim · model-written summary
bio-fertilizers (B3) gave the highest leaf chlorophyll of 0.993 mg g-1.
- Taxon
- date palm
Phoenix dactyliferat0 - Organ / stage
- leavese0
- Treatment
- bio-fertilizers (B3)e0
- Outcome
- chlorophylle0
- Direction
- higheste0
- Value
- 0.993 mg g-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The ground addition treatment of bio-fertilizers (B3) also gave the highest averages in the total leaves content of chlorophyll, carbohydrates, protein, nitrogen, phosphorus, and potassium (0.993 mg g-1, 12.535%, 6.397%, 1.047%, 0.503% and 1.290%), respectively.”
t0“date palm”
Claim · model-written summary
bio-fertilizers (B3) gave the highest leaf carbohydrates of 12.535%.
- Taxon
- date palm
Phoenix dactyliferat0 - Organ / stage
- leavese0
- Treatment
- bio-fertilizers (B3)e0
- Outcome
- carbohydratese0
- Direction
- higheste0
- Value
- 12.535%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The ground addition treatment of bio-fertilizers (B3) also gave the highest averages in the total leaves content of chlorophyll, carbohydrates, protein, nitrogen, phosphorus, and potassium (0.993 mg g-1, 12.535%, 6.397%, 1.047%, 0.503% and 1.290%), respectively.”
t0“date palm”
Claim · model-written summary
bio-fertilizers (B3) gave the highest leaf protein of 6.397%.
- Taxon
- date palm
Phoenix dactyliferat0 - Organ / stage
- leavese0
- Treatment
- bio-fertilizers (B3)e0
- Outcome
- proteine0
- Direction
- higheste0
- Value
- 6.397%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The ground addition treatment of bio-fertilizers (B3) also gave the highest averages in the total leaves content of chlorophyll, carbohydrates, protein, nitrogen, phosphorus, and potassium (0.993 mg g-1, 12.535%, 6.397%, 1.047%, 0.503% and 1.290%), respectively.”
t0“date palm”
Claim · model-written summary
bio-fertilizers (B3) gave the highest leaf nitrogen of 1.047%.
- Taxon
- date palm
Phoenix dactyliferat0 - Organ / stage
- leavese0
- Treatment
- bio-fertilizers (B3)e0
- Outcome
- nitrogene0
- Direction
- higheste0
- Value
- 1.047%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The ground addition treatment of bio-fertilizers (B3) also gave the highest averages in the total leaves content of chlorophyll, carbohydrates, protein, nitrogen, phosphorus, and potassium (0.993 mg g-1, 12.535%, 6.397%, 1.047%, 0.503% and 1.290%), respectively.”
t0“date palm”
Claim · model-written summary
bio-fertilizers (B3) gave the highest leaf phosphorus of 0.503%.
- Taxon
- date palm
Phoenix dactyliferat0 - Organ / stage
- leavese0
- Treatment
- bio-fertilizers (B3)e0
- Outcome
- phosphoruse0
- Direction
- higheste0
- Value
- 0.503%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The ground addition treatment of bio-fertilizers (B3) also gave the highest averages in the total leaves content of chlorophyll, carbohydrates, protein, nitrogen, phosphorus, and potassium (0.993 mg g-1, 12.535%, 6.397%, 1.047%, 0.503% and 1.290%), respectively.”
t0“date palm”
Claim · model-written summary
bio-fertilizers (B3) gave the highest leaf potassium of 1.290%.
- Taxon
- date palm
Phoenix dactyliferat0 - Organ / stage
- leavese0
- Treatment
- bio-fertilizers (B3)e0
- Outcome
- potassiume0
- Direction
- higheste0
- Value
- 1.290%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The ground addition treatment of bio-fertilizers (B3) also gave the highest averages in the total leaves content of chlorophyll, carbohydrates, protein, nitrogen, phosphorus, and potassium (0.993 mg g-1, 12.535%, 6.397%, 1.047%, 0.503% and 1.290%), respectively.”
t0“date palm”
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See all 5 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.