Abstract
Low soil fertility and irregular rainfall are major constraints to rain-fed maize production in Burkina Faso. The aim of this study was to develop technologies to optimize maize productivity. It consisted of conducting a trial at the Saria research station in 2024 and 2025. The experimental design was a randomized complete block with split plot arrangement of treatments and three replications. Three tillage methods (i) scarifying, (ii) ploughing and (iii) tied- ridging were allocated to the main plots: Five fertilization levels (i) zero fertilization (F1), (ii) 200 kg ha-1 NPK + 200 kg ha-1 urea 30N (F2), (iii) 300 kg ha-1 NPK + 100 kg ha-1 urea 30N (F3), (iv) F2 + 2,500 kg ha-1 compost (F4) and (v) F3 + 2,500 kg ha-1 compost (F5) were applied in the sub-plots. The SPAD leaf chlorophyll index, 1000-kernel weight, grain yield and stover yield were evaluated. Compared to F1, the results showed an improvement in 1000-kernel weight of around 136% with F2 and F3; 145% with F4 and 135% with F5. There was also an increase in grain yield of around 409% with F2; 471.37% with F3; 633.33% with F4, and 430.20% with F5 compared to F1. Furthermore, with these same treatments, stover yield varied from 617 to 2431 kg ha⁻¹ while the leaf chlorophyll index varied from 26.02 to 42.55. Ploughing and tied-ridging improved stover yield compared to scarifying. These results show that tillage combined with fertilization improves chlorophyll assimilation and maize yields.
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Claims 11
Claim · model-written summary
The 200 kg ha-1 NPK + 200 kg ha-1 urea 30N treatment (F2) improved 1000-kernel weight by about 136% compared with zero fertilization.
- Treatment
- 200 kg ha-1 NPK + 200 kg ha-1 urea 30Ne4
- Outcome
- 1000-kernel weighte0
- Direction
- improvemente0
- Value
- 136%e0
- Comparator
- zero fertilizatione4
- Setting
- Saria research statione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Chlorophyll Assimilation and Maize Yields”
e5“conducting a trial at the Saria research station in 2024 and 2025”
e0“Compared to F1, the results showed an improvement in 1000-kernel weight of around 136% with F2 and F3; 145% with F4 and 135% with F5”
e4“zero fertilization (F1), (ii) 200 kg ha-1 NPK + 200 kg ha-1 urea 30N (F2), (iii) 300 kg ha-1 NPK + 100 kg ha-1 urea 30N (F3), (iv) F2 + 2,500 kg ha-1 compost (F4) and (v) F3 + 2,500 kg ha-1 compost (F5)”
Claim · model-written summary
The 300 kg ha-1 NPK + 100 kg ha-1 urea 30N treatment (F3) improved 1000-kernel weight by about 136% compared with zero fertilization.
- Treatment
- 300 kg ha-1 NPK + 100 kg ha-1 urea 30Ne4
- Outcome
- 1000-kernel weighte0
- Direction
- improvemente0
- Value
- 136%e0
- Comparator
- zero fertilizatione4
- Setting
- Saria research statione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Chlorophyll Assimilation and Maize Yields”
e5“conducting a trial at the Saria research station in 2024 and 2025”
e0“Compared to F1, the results showed an improvement in 1000-kernel weight of around 136% with F2 and F3; 145% with F4 and 135% with F5”
e4“zero fertilization (F1), (ii) 200 kg ha-1 NPK + 200 kg ha-1 urea 30N (F2), (iii) 300 kg ha-1 NPK + 100 kg ha-1 urea 30N (F3), (iv) F2 + 2,500 kg ha-1 compost (F4) and (v) F3 + 2,500 kg ha-1 compost (F5)”
Claim · model-written summary
The F2 + 2,500 kg ha-1 compost treatment (F4) improved 1000-kernel weight by about 145% compared with zero fertilization.
- Treatment
- F2 + 2,500 kg ha-1 composte4
- Outcome
- 1000-kernel weighte0
- Direction
- improvemente0
- Value
- 145%e0
- Comparator
- zero fertilizatione4
- Setting
- Saria research statione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Chlorophyll Assimilation and Maize Yields”
e5“conducting a trial at the Saria research station in 2024 and 2025”
e0“Compared to F1, the results showed an improvement in 1000-kernel weight of around 136% with F2 and F3; 145% with F4 and 135% with F5”
e4“zero fertilization (F1), (ii) 200 kg ha-1 NPK + 200 kg ha-1 urea 30N (F2), (iii) 300 kg ha-1 NPK + 100 kg ha-1 urea 30N (F3), (iv) F2 + 2,500 kg ha-1 compost (F4) and (v) F3 + 2,500 kg ha-1 compost (F5)”
Claim · model-written summary
The F3 + 2,500 kg ha-1 compost treatment (F5) improved 1000-kernel weight by about 135% compared with zero fertilization.
- Treatment
- F3 + 2,500 kg ha-1 composte4
- Outcome
- 1000-kernel weighte0
- Direction
- improvemente0
- Value
- 135%e0
- Comparator
- zero fertilizatione4
- Setting
- Saria research statione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Chlorophyll Assimilation and Maize Yields”
e5“conducting a trial at the Saria research station in 2024 and 2025”
e0“Compared to F1, the results showed an improvement in 1000-kernel weight of around 136% with F2 and F3; 145% with F4 and 135% with F5”
e4“zero fertilization (F1), (ii) 200 kg ha-1 NPK + 200 kg ha-1 urea 30N (F2), (iii) 300 kg ha-1 NPK + 100 kg ha-1 urea 30N (F3), (iv) F2 + 2,500 kg ha-1 compost (F4) and (v) F3 + 2,500 kg ha-1 compost (F5)”
Claim · model-written summary
The 200 kg ha-1 NPK + 200 kg ha-1 urea 30N treatment (F2) increased grain yield by about 409% compared with F1.
- Treatment
- 200 kg ha-1 NPK + 200 kg ha-1 urea 30Ne4
- Outcome
- grain yielde1
- Direction
- increasee1
- Value
- 409%e1
- Comparator
- F1e1
- Setting
- Saria research statione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Chlorophyll Assimilation and Maize Yields”
e5“conducting a trial at the Saria research station in 2024 and 2025”
e1“There was also an increase in grain yield of around 409% with F2; 471.37% with F3; 633.33% with F4, and 430.20% with F5 compared to F1”
e4“zero fertilization (F1), (ii) 200 kg ha-1 NPK + 200 kg ha-1 urea 30N (F2), (iii) 300 kg ha-1 NPK + 100 kg ha-1 urea 30N (F3), (iv) F2 + 2,500 kg ha-1 compost (F4) and (v) F3 + 2,500 kg ha-1 compost (F5)”
Claim · model-written summary
The 300 kg ha-1 NPK + 100 kg ha-1 urea 30N treatment (F3) increased grain yield by about 471.37% compared with F1.
- Treatment
- 300 kg ha-1 NPK + 100 kg ha-1 urea 30Ne4
- Outcome
- grain yielde1
- Direction
- increasee1
- Value
- 471.37%e1
- Comparator
- F1e1
- Setting
- Saria research statione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Chlorophyll Assimilation and Maize Yields”
e5“conducting a trial at the Saria research station in 2024 and 2025”
e1“There was also an increase in grain yield of around 409% with F2; 471.37% with F3; 633.33% with F4, and 430.20% with F5 compared to F1”
e4“zero fertilization (F1), (ii) 200 kg ha-1 NPK + 200 kg ha-1 urea 30N (F2), (iii) 300 kg ha-1 NPK + 100 kg ha-1 urea 30N (F3), (iv) F2 + 2,500 kg ha-1 compost (F4) and (v) F3 + 2,500 kg ha-1 compost (F5)”
Claim · model-written summary
The F2 + 2,500 kg ha-1 compost treatment (F4) increased grain yield by about 633.33% compared with F1.
- Treatment
- F2 + 2,500 kg ha-1 composte4
- Outcome
- grain yielde1
- Direction
- increasee1
- Value
- 633.33%e1
- Comparator
- F1e1
- Setting
- Saria research statione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Chlorophyll Assimilation and Maize Yields”
e5“conducting a trial at the Saria research station in 2024 and 2025”
e1“There was also an increase in grain yield of around 409% with F2; 471.37% with F3; 633.33% with F4, and 430.20% with F5 compared to F1”
e4“zero fertilization (F1), (ii) 200 kg ha-1 NPK + 200 kg ha-1 urea 30N (F2), (iii) 300 kg ha-1 NPK + 100 kg ha-1 urea 30N (F3), (iv) F2 + 2,500 kg ha-1 compost (F4) and (v) F3 + 2,500 kg ha-1 compost (F5)”
Claim · model-written summary
The F3 + 2,500 kg ha-1 compost treatment (F5) increased grain yield by about 430.20% compared with F1.
- Treatment
- F3 + 2,500 kg ha-1 composte4
- Outcome
- grain yielde1
- Direction
- increasee1
- Value
- 430.20%e1
- Comparator
- F1e1
- Setting
- Saria research statione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Chlorophyll Assimilation and Maize Yields”
e5“conducting a trial at the Saria research station in 2024 and 2025”
e1“There was also an increase in grain yield of around 409% with F2; 471.37% with F3; 633.33% with F4, and 430.20% with F5 compared to F1”
e4“zero fertilization (F1), (ii) 200 kg ha-1 NPK + 200 kg ha-1 urea 30N (F2), (iii) 300 kg ha-1 NPK + 100 kg ha-1 urea 30N (F3), (iv) F2 + 2,500 kg ha-1 compost (F4) and (v) F3 + 2,500 kg ha-1 compost (F5)”
Claim · model-written summary
With the fertilization treatments F2 to F5, maize stover yield varied from 617 to 2431 kg ha⁻¹.
- Outcome
- stover yielde2
- Value
- 617 to 2431 kg ha⁻¹e2
- Qualifier
- with these same treatmentse2
- Setting
- Saria research statione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Chlorophyll Assimilation and Maize Yields”
e5“conducting a trial at the Saria research station in 2024 and 2025”
e2“Furthermore, with these same treatments, stover yield varied from 617 to 2431 kg ha⁻¹ while the leaf chlorophyll index varied from 26.02 to 42.55”
Claim · model-written summary
With the fertilization treatments F2 to F5, the SPAD leaf chlorophyll index of maize varied from 26.02 to 42.55.
- Outcome
- leaf chlorophyll indexe2
- Value
- 26.02 to 42.55e2
- Qualifier
- with these same treatmentse2
- Setting
- Saria research statione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Chlorophyll Assimilation and Maize Yields”
e5“conducting a trial at the Saria research station in 2024 and 2025”
e2“Furthermore, with these same treatments, stover yield varied from 617 to 2431 kg ha⁻¹ while the leaf chlorophyll index varied from 26.02 to 42.55”
Claim · model-written summary
Ploughing and tied-ridging improved maize stover yield compared with scarifying.
- Treatment
- Ploughing and tied-ridginge3
- Outcome
- stover yielde3
- Direction
- improvede3
- Comparator
- scarifyinge3
- Setting
- Saria research statione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Chlorophyll Assimilation and Maize Yields”
e5“conducting a trial at the Saria research station in 2024 and 2025”
e3“Ploughing and tied-ridging improved stover yield compared to scarifying”
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