Abstract
The study investigated the effects of organic and inorganic nutrients on crop productivity and soil health, with a focus on maize growth and soil properties. It was conducted at Bayero University, Kano and comprised six treatments laid out in a Completely Randomized Design (CRD) with three replications. The treatments included poultry manure, synthetic fertilizers, and their combination. The research aimed to assess the impact of these treatments on maize growth and their residual effects on soil physical and chemical properties. Various plant growth parameters and soil properties were evaluated, and the data obtained were analyzed using Analysis of Variance (ANOVA) and Student-Newman-Keuls test (SNK). The results indicated that all treatments significantly influenced morphological parameters, including plant height, number of leaves, stem girth, and leaf area, compared to the control. Maize growth was notably higher with the application of integrated poultry and inorganic fertilizer or solely inorganic fertilizers. Additionally, soil organic carbon, total nitrogen, phosphorus, and potassium contents increased when poultry manure was applied alone or in combination with inorganic fertilizer. The application of poultry manure significantly raised soil pH, organic carbon content, total nitrogen, available phosphorus, exchangeable potassium, calcium, magnesium, and effective cation exchange capacity (ECEC) of the soil. Furthermore, the exchangeable acidity of the soil was reduced by the application of poultry manure alone. Soil texture was improved, soil bulk density decreased, and porosity increased due to the application of poultry manure. The study concluded that the combined application of poultry manure and inorganic fertilizer enhanced the growth of maize and could serve as a good soil management practice for tropical soils. It also suggested that integrating inorganic fertilizers with organic manures at optimum rates could improve crop productivity on a sustainable basis. The findings of this study may contribute to the development of sustainable nutrient management programs aimed at enhancing crop productivity with high efficiency and minimal nutrient loss in the future.
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Claims 14
Claim · model-written summary
All treatments significantly affected maize height, leaf number and stem girth.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“all treatments significantly influenced morphological parameters, including plant height, number of leaves, stem girth, and leaf area, compared to the control”
e1“focus on maize growth and soil properties”
Claim · model-written summary
All treatments significantly affected maize leaf area.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“all treatments significantly influenced morphological parameters, including plant height, number of leaves, stem girth, and leaf area, compared to the control”
e1“focus on maize growth and soil properties”
Claim · model-written summary
Integrated poultry and inorganic fertilizer increased maize growth.
- Treatment
- application of integrated poultry and inorganic fertilizere0
- Outcome
- Maize growthe0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Maize growth was notably higher with the application of integrated poultry and inorganic fertilizer or solely inorganic fertilizers.”
Claim · model-written summary
Sole inorganic fertilizer increased maize growth.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Maize growth was notably higher with the application of integrated poultry and inorganic fertilizer or solely inorganic fertilizers.”
Claim · model-written summary
Poultry manure alone increased soil carbon and nutrient contents.
- Treatment
- poultry manure was applied alonee0
- Outcome
- soil organic carbon, total nitrogen, phosphorus, and potassium contentse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“soil organic carbon, total nitrogen, phosphorus, and potassium contents increased when poultry manure was applied alone or in combination with inorganic fertilizer”
e1“focus on maize growth and soil properties”
Claim · model-written summary
Poultry manure with inorganic fertilizer increased soil carbon and nutrient contents.
- Treatment
- in combination with inorganic fertilizere0
- Outcome
- soil organic carbon, total nitrogen, phosphorus, and potassium contentse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“soil organic carbon, total nitrogen, phosphorus, and potassium contents increased when poultry manure was applied alone or in combination with inorganic fertilizer”
e1“focus on maize growth and soil properties”
Claim · model-written summary
Manure raised soil pH, carbon and nitrogen.
- Treatment
- application of poultry manuree0
- Outcome
- soil pH, organic carbon content, total nitrogene0
- Direction
- raisede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The application of poultry manure significantly raised soil pH, organic carbon content, total nitrogen, available phosphorus, exchangeable potassium, calcium, magnesium, and effective cation exchange capacity (ECEC) of the soil.”
e1“focus on maize growth and soil properties”
Claim · model-written summary
Manure raised soil phosphorus, potassium and calcium.
- Treatment
- application of poultry manuree0
- Outcome
- available phosphorus, exchangeable potassium, calciume0
- Direction
- raisede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The application of poultry manure significantly raised soil pH, organic carbon content, total nitrogen, available phosphorus, exchangeable potassium, calcium, magnesium, and effective cation exchange capacity (ECEC) of the soil.”
e1“focus on maize growth and soil properties”
Claim · model-written summary
Manure raised soil magnesium and cation exchange capacity.
- Treatment
- application of poultry manuree0
- Outcome
- magnesium, and effective cation exchange capacity (ECEC) of the soile0
- Direction
- raisede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The application of poultry manure significantly raised soil pH, organic carbon content, total nitrogen, available phosphorus, exchangeable potassium, calcium, magnesium, and effective cation exchange capacity (ECEC) of the soil.”
e1“focus on maize growth and soil properties”
Claim · model-written summary
Manure alone reduced soil exchangeable acidity.
- Treatment
- application of poultry manure alonee0
- Outcome
- exchangeable acidity of the soile0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the exchangeable acidity of the soil was reduced by the application of poultry manure alone”
e1“focus on maize growth and soil properties”
Claim · model-written summary
Manure improved soil texture.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Soil texture was improved, soil bulk density decreased, and porosity increased due to the application of poultry manure.”
e1“focus on maize growth and soil properties”
Claim · model-written summary
Manure decreased soil bulk density.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Soil texture was improved, soil bulk density decreased, and porosity increased due to the application of poultry manure.”
e1“focus on maize growth and soil properties”
Claim · model-written summary
Manure increased soil porosity.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Soil texture was improved, soil bulk density decreased, and porosity increased due to the application of poultry manure.”
e1“focus on maize growth and soil properties”
Claim · model-written summary
The authors suggest integrating inorganic fertilizers and organic manures at optimum rates.
- Outcome
- integrating inorganic fertilizers with organic manures at optimum ratese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“integrating inorganic fertilizers with organic manures at optimum rates could improve crop productivity on a sustainable basis”
e1“focus on maize growth and soil properties”
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