Abstract
Abstract Agricultural improvement (AI) in dryland became a priority for agricultural development in Aceh Province, Indonesia. AI is in line with government programs to increase the productivity of several types of second food crops such as peanuts. Up to now, the productivity of food crops, especially peanut on dryland in Aceh Province, based on farmers’ practice, was still very low, i.e 0.95 tons ha -1 . Biochar is one of the options for soil management and has the potential to improve soil fertility. The objectives of this research were to study the effect of rice husk biochar residue, cocopeat biochar residue, and cow manure residue on Entisol chemical properties, peanut growth, and production. Rice husk biochar, cocopeat biochar, and cow manure were applied on the first season of peanut growth. The research was conducted using factorial 6 × 3 with three replications, and the treatment units were allocated based on Randomized Block Design. The first factor was rice husk biochar residue and cocopeat biochar residue with 3 doses (0; 2.5; 5 t ha -1 ) and cow manure residue with 3 doses (0; 2.5; 5 t ha -1 ) as the second factor. The soil chemical properties and root samples were analyzed on 45 days after planting and peanut production after harvest. The observed variables of crops were (1) plant height, (2) branches number (3) plant dry weight; (4) root dry weight; (5) root nodules number, (6) pods weight, (7) pods total, (8) filled pods, (9) seed weight, and (10) weight of 100 seeds. The observed variables of soil chemical properties were (1) pH, (2) C-organic; (3) Total N; (4) P available; and (5) K exchangeable. The results showed that rice husk biochar residue and cocopeat biochar residue does not affect soil chemical properties significantly, such as plant height 15 and 30 DAP, peanut pods, and seed weight per plant. Nevertheless, both had a positive effect on plant height 45 DAP, branches number 15, 30, 40 DAP, root dry weight, plant dry weight, root nodules number, and 100 seeds weight. The best residual dosage of rice husk biochar and cocopeat biochar was 2.5 t ha -1 . Cow manure residue did not give a significant effect on soil chemical properties, plant height 15, 30 and 45 DAP, branches number 30, 45 DAP, root dry weight, plant dry weight, root nodules number, peanut pods, seed weight per plant, and 100 seeds weight, but had a positive effect on the number of branches 15 DAP. The best dosage of cow manure residue was 2.5 t ha -1
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Claims 17
Claim · model-written summary
Rice-husk biochar residue had no significant effect on soil chemical properties.
- Taxon
- peanut
Arachis hypogaeat0 - Treatment
- rice husk biochar residuee0
- Outcome
- soil chemical propertiese0
- Direction
- does not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“rice husk biochar residue and cocopeat biochar residue does not affect soil chemical properties significantly”
t0“peanut”
Claim · model-written summary
Cocopeat biochar residue had no significant effect on soil chemical properties.
- Taxon
- peanut
Arachis hypogaeat0 - Treatment
- cocopeat biochar residuee0
- Outcome
- soil chemical propertiese0
- Direction
- does not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“rice husk biochar residue and cocopeat biochar residue does not affect soil chemical properties significantly”
t0“peanut”
Claim · model-written summary
Rice-husk biochar residue did not significantly affect peanut height at 15 and 30 DAP, pods, or seed weight per plant.
- Taxon
- peanut
Arachis hypogaeat0 - Treatment
- rice husk biochar residuee0
- Outcome
- plant height 15 and 30 DAP, peanut pods, and seed weight per plante0
- Direction
- does not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“rice husk biochar residue and cocopeat biochar residue does not affect soil chemical properties significantly, such as plant height 15 and 30 DAP, peanut pods, and seed weight per plant”
t0“peanut”
Claim · model-written summary
Cocopeat biochar residue did not significantly affect peanut height at 15 and 30 DAP, pods, or seed weight per plant.
- Taxon
- peanut
Arachis hypogaeat0 - Treatment
- cocopeat biochar residuee0
- Outcome
- plant height 15 and 30 DAP, peanut pods, and seed weight per plante0
- Direction
- does not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“rice husk biochar residue and cocopeat biochar residue does not affect soil chemical properties significantly, such as plant height 15 and 30 DAP, peanut pods, and seed weight per plant”
t0“peanut”
Claim · model-written summary
Rice-husk biochar residue positively affected peanut height at 45 DAP and branch counts at 15, 30, and 40 DAP.
- Taxon
- peanut
Arachis hypogaeat0 - Treatment
- rice husk biochar residuee1
- Outcome
- plant height 45 DAP, branches number 15, 30, 40 DAPe0
- Direction
- positive effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“both had a positive effect on plant height 45 DAP, branches number 15, 30, 40 DAP”
t0“peanut”
e1“rice husk biochar residue and cocopeat biochar residue does not affect soil chemical properties significantly”
Claim · model-written summary
Cocopeat biochar residue positively affected peanut height at 45 DAP and branch counts at 15, 30, and 40 DAP.
- Taxon
- peanut
Arachis hypogaeat0 - Treatment
- cocopeat biochar residuee1
- Outcome
- plant height 45 DAP, branches number 15, 30, 40 DAPe0
- Direction
- positive effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“both had a positive effect on plant height 45 DAP, branches number 15, 30, 40 DAP”
t0“peanut”
e1“rice husk biochar residue and cocopeat biochar residue does not affect soil chemical properties significantly”
Claim · model-written summary
Rice-husk biochar residue positively affected peanut root dry weight, plant dry weight, and nodule count.
- Taxon
- peanut
Arachis hypogaeat0 - Treatment
- rice husk biochar residuee1
- Outcome
- root dry weight, plant dry weight, root nodules numbere0
- Direction
- positive effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“both had a positive effect on plant height 45 DAP, branches number 15, 30, 40 DAP, root dry weight, plant dry weight, root nodules number, and 100 seeds weight”
t0“peanut”
e1“rice husk biochar residue and cocopeat biochar residue does not affect soil chemical properties significantly”
Claim · model-written summary
Cocopeat biochar residue positively affected peanut root dry weight, plant dry weight, and nodule count.
- Taxon
- peanut
Arachis hypogaeat0 - Treatment
- cocopeat biochar residuee1
- Outcome
- root dry weight, plant dry weight, root nodules numbere0
- Direction
- positive effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“both had a positive effect on plant height 45 DAP, branches number 15, 30, 40 DAP, root dry weight, plant dry weight, root nodules number, and 100 seeds weight”
t0“peanut”
e1“rice husk biochar residue and cocopeat biochar residue does not affect soil chemical properties significantly”
Claim · model-written summary
Rice-husk biochar residue positively affected peanut 100-seed weight.
- Taxon
- peanut
Arachis hypogaeat0 - Treatment
- rice husk biochar residuee1
- Outcome
- 100 seeds weighte0
- Direction
- positive effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“both had a positive effect on plant height 45 DAP, branches number 15, 30, 40 DAP, root dry weight, plant dry weight, root nodules number, and 100 seeds weight”
t0“peanut”
e1“rice husk biochar residue and cocopeat biochar residue does not affect soil chemical properties significantly”
Claim · model-written summary
Cocopeat biochar residue positively affected peanut 100-seed weight.
- Taxon
- peanut
Arachis hypogaeat0 - Treatment
- cocopeat biochar residuee1
- Outcome
- 100 seeds weighte0
- Direction
- positive effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“both had a positive effect on plant height 45 DAP, branches number 15, 30, 40 DAP, root dry weight, plant dry weight, root nodules number, and 100 seeds weight”
t0“peanut”
e1“rice husk biochar residue and cocopeat biochar residue does not affect soil chemical properties significantly”
Claim · model-written summary
The best residual biochar dose was reported as 2.5 t ha -1.
- Taxon
- peanut
Arachis hypogaeat0 - Treatment
- rice husk biochar and cocopeat biochare0
- Outcome
- best residual dosagee0
- Value
- 2.5 t ha -1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The best residual dosage of rice husk biochar and cocopeat biochar was 2.5 t ha -1”
t0“peanut”
Claim · model-written summary
Cow manure residue did not significantly affect soil chemical properties.
- Taxon
- peanut
Arachis hypogaeat0 - Treatment
- Cow manure residuee0
- Outcome
- soil chemical propertiese0
- Direction
- did not give a significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Cow manure residue did not give a significant effect on soil chemical properties”
t0“peanut”
Claim · model-written summary
Cow manure residue did not significantly affect peanut height at 15, 30, or 45 DAP or branches at 30 and 45 DAP.
- Taxon
- peanut
Arachis hypogaeat0 - Treatment
- Cow manure residuee0
- Outcome
- plant height 15, 30 and 45 DAP, branches number 30, 45 DAPe0
- Direction
- did not give a significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Cow manure residue did not give a significant effect on soil chemical properties, plant height 15, 30 and 45 DAP, branches number 30, 45 DAP”
t0“peanut”
Claim · model-written summary
Cow manure residue did not significantly affect root or plant dry weight or root nodule count.
- Taxon
- peanut
Arachis hypogaeat0 - Treatment
- Cow manure residuee0
- Outcome
- root dry weight, plant dry weight, root nodules numbere0
- Direction
- did not give a significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Cow manure residue did not give a significant effect on soil chemical properties, plant height 15, 30 and 45 DAP, branches number 30, 45 DAP, root dry weight, plant dry weight, root nodules number”
t0“peanut”
Claim · model-written summary
Cow manure residue did not significantly affect pods, seed weight per plant, or 100-seed weight.
- Taxon
- peanut
Arachis hypogaeat0 - Treatment
- Cow manure residuee0
- Outcome
- peanut pods, seed weight per plant, and 100 seeds weighte0
- Direction
- did not give a significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Cow manure residue did not give a significant effect on soil chemical properties, plant height 15, 30 and 45 DAP, branches number 30, 45 DAP, root dry weight, plant dry weight, root nodules number, peanut pods, seed weight per plant, and 100 seeds weight”
t0“peanut”
Claim · model-written summary
Cow manure residue positively affected peanut branch number at 15 DAP.
- Taxon
- peanut
Arachis hypogaeat0 - Treatment
- cow manure residuee1
- Outcome
- number of branches 15 DAPe0
- Direction
- positive effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“had a positive effect on the number of branches 15 DAP”
t0“peanut”
e1“Cow manure residue did not give a significant effect”
Claim · model-written summary
The best cow-manure residue dose was reported as 2.5 t ha -1.
- Taxon
- peanut
Arachis hypogaeat0 - Outcome
- best dosage of cow manure residuee0
- Value
- 2.5 t ha -1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The best dosage of cow manure residue was 2.5 t ha -1”
t0“peanut”
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