Abstract
Two field experiments were conducted during the 2023 and 2024 summer seasons to evaluate the effects of commercial biostimulants on peanut (Arachis hypogaea L.) productivity and soil health under arid sandy soil conditions along the Alexandria Desert Road, Egypt. A randomized complete block design with four treatments control, Humic King (humic acid), Biofertile (microbial inoculant; Azospirillum brasilense and Bacillus megaterium), and Kelpak (seaweed extract) was implemented with three replicates. Biostimulant applications enhanced several agronomic and quality parameters compared with the control. Total dry weight increased by up to 10.2%, while pod yield improved from 1.93 to 1.99 t ha⁻¹ in the control to a maximum of 3.41 t ha⁻¹ under humic acid treatment. Harvest index increased significantly from approximately 30% in untreated plants to 35.7% under humic acid application (p ≤ 0.05). Seed oil content reached 43.2% under humic acid compared with 41.4% in the control, whereas seaweed extract increased seed protein content by up to 14.4%. Post-harvest soil analyses indicated improvements in organic matter, available nitrogen, and reductions in salinity-related parameters, particularly under humic acid and microbial treatments. Overall, Humic King demonstrated the most consistent agronomic and soil benefits, supporting its recommendation for peanut cultivation in nutrient-deficient sandy soils under arid conditions.
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Claims 8
Claim · model-written summary
Biostimulant applications increased peanut total dry weight by up to 10.2% relative to the control.
- Taxon
- peanut
Arachis hypogaeat0 - Treatment
- Biostimulant applicationse1
- Outcome
- Total dry weighte2
- Direction
- increasede2
- Value
- 10.2%e2
- Comparator
- the controle1
- Setting
- Alexandria Desert Road, Egypte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“peanut (Arachis hypogaea L.)”
e0“Two field experiments were conducted during the 2023 and 2024 summer seasons to evaluate the effects of commercial biostimulants on peanut (Arachis hypogaea L.) productivity and soil health under arid sandy soil conditions along the Alexandria Desert Road, Egypt.”
e1“Biostimulant applications enhanced several agronomic and quality parameters compared with the control.”
e2“Total dry weight increased by up to 10.2%, while pod yield improved from 1.93 to 1.99 t ha⁻¹ in the control to a maximum of 3.41 t ha⁻¹ under humic acid treatment.”
Claim · model-written summary
Humic acid treatment raised peanut pod yield to 3.41 t ha⁻¹, compared with 1.93 to 1.99 t ha⁻¹ in the control.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- humic acid treatmente2
- Outcome
- pod yielde2
- Direction
- improvede2
- Value
- 3.41 t ha⁻¹e2
- Qualifier
- 1.93 to 1.99 t ha⁻¹e2
- Comparator
- the controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“peanut (Arachis hypogaea L.)”
e2“Total dry weight increased by up to 10.2%, while pod yield improved from 1.93 to 1.99 t ha⁻¹ in the control to a maximum of 3.41 t ha⁻¹ under humic acid treatment.”
Claim · model-written summary
Humic acid significantly increased peanut harvest index from approximately 30% in untreated plants to 35.7%.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- humic acid applicatione3
- Outcome
- Harvest indexe3
- Direction
- increasede3
- Value
- 35.7%e3
- Qualifier
- approximately 30%e3
- Comparator
- untreated plantse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“peanut (Arachis hypogaea L.)”
e3“Harvest index increased significantly from approximately 30% in untreated plants to 35.7% under humic acid application (p ≤ 0.05).”
Claim · model-written summary
Humic acid increased peanut seed oil content to 43.2%, compared with 41.4% in the control.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- humic acide4
- Outcome
- Seed oil contente4
- Direction
- reachede4
- Value
- 43.2%e4
- Qualifier
- 41.4%e4
- Comparator
- the controle4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“peanut (Arachis hypogaea L.)”
e4“Seed oil content reached 43.2% under humic acid compared with 41.4% in the control, whereas seaweed extract increased seed protein content by up to 14.4%.”
Claim · model-written summary
Seaweed extract increased peanut seed protein content by up to 14.4%.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- seaweed extracte4
- Outcome
- seed protein contente4
- Direction
- increasede4
- Value
- 14.4%e4
- Comparator
- the controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“peanut (Arachis hypogaea L.)”
e4“Seed oil content reached 43.2% under humic acid compared with 41.4% in the control, whereas seaweed extract increased seed protein content by up to 14.4%.”
e1“Biostimulant applications enhanced several agronomic and quality parameters compared with the control.”
Claim · model-written summary
Postharvest soil organic matter and available nitrogen improved, particularly with humic acid and microbial treatments.
- Treatment
- humic acid and microbial treatmentse5
- Outcome
- organic matter, available nitrogene5
- Direction
- improvementse5
Not reportedTaxon
Verbatim
e5“Post-harvest soil analyses indicated improvements in organic matter, available nitrogen, and reductions in salinity-related parameters, particularly under humic acid and microbial treatments.”
Claim · model-written summary
Postharvest soil salinity related parameters declined, particularly with humic acid and microbial treatments.
- Treatment
- humic acid and microbial treatmentse5
- Outcome
- salinity-related parameterse5
- Direction
- reductionse5
Not reportedTaxon
Verbatim
e5“Post-harvest soil analyses indicated improvements in organic matter, available nitrogen, and reductions in salinity-related parameters, particularly under humic acid and microbial treatments.”
Claim · model-written summary
The authors recommend Humic King for peanut cultivation in nutrient deficient sandy soils under arid conditions because it provided the most consistent agronomic and soil benefits.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- Humic Kinge6
- Outcome
- recommendation for peanut cultivatione6
- Qualifier
- nutrient-deficient sandy soils under arid conditionse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“peanut (Arachis hypogaea L.)”
e6“Overall, Humic King demonstrated the most consistent agronomic and soil benefits, supporting its recommendation for peanut cultivation in nutrient-deficient sandy soils under arid conditions.”
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See all 8 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.