Abstract
Crop residues' inappropriate management is the main constraint causing the decline in soil fertility and crop yields in Burkina Faso. This study was conducted at the Farako-Bâ Research Station from 2014 to 2019 to assess the effects of crop residue management to improve the sustainability of the cotton-cereal based production systems. The experimental design was complete randomized blocks of Fischer with four replications. Three different crop residue management practices were investigated: (i) Crop residue exportation and conventional tillage (T1); ii) Composted crop residues and conventional tillage (T2); and (iii) Crop residues used for soil mulching and no-tillage (T3). Soil chemical characteristics and crop yields were assessed as parameters in this study. Crop yields were improved by 17 to 34% on maize, from 18 to 38% on cotton and from 6 to 14% on sorghum, respectively, with residues recycled into compost (T2) and residues used for soil mulching (T3) compared to residues exported (T1). Crop residue management and soil tillage technics significantly increased the yields of maize, sorghum, and cotton after the first three years of experimentation. Soil chemical properties were not statistically influenced, except for SOM, nitrogen, and available K content. The highest decrease in soil carbon content induced by crop residue exportation (T1) should not be recommended to farmers. Key words: Crop residues, tillage, soil fertility, cotton-cereals, yield, Burkina Faso.
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Claims 7
Claim · model-written summary
Residue recycling or mulching improved maize yields by 17 to 34% versus residue export.
- Treatment
- residues recycled into compost (T2) and residues used for soil mulching (T3)e0
- Outcome
- Crop yieldse0
- Direction
- improvede0
- Value
- 17 to 34%e0
- Comparator
- residues exported (T1)e0
Not reportedSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Crop yields were improved by 17 to 34% on maize, from 18 to 38% on cotton and from 6 to 14% on sorghum, respectively, with residues recycled into compost (T2) and residues used for soil mulching (T3) compared to residues exported (T1).”
Claim · model-written summary
Residue recycling or mulching improved cotton yields by 18 to 38% versus residue export.
- Taxon
- cotton
Gossypium hirsutume0 - Treatment
- residues recycled into compost (T2) and residues used for soil mulching (T3)e0
- Outcome
- Crop yieldse0
- Direction
- improvede0
- Value
- 18 to 38%e0
- Comparator
- residues exported (T1)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Crop yields were improved by 17 to 34% on maize, from 18 to 38% on cotton and from 6 to 14% on sorghum, respectively, with residues recycled into compost (T2) and residues used for soil mulching (T3) compared to residues exported (T1).”
Claim · model-written summary
Residue recycling or mulching improved sorghum yields by 6 to 14% versus residue export.
- Treatment
- residues recycled into compost (T2) and residues used for soil mulching (T3)e0
- Outcome
- Crop yieldse0
- Direction
- improvede0
- Value
- 6 to 14%e0
- Comparator
- residues exported (T1)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Crop yields were improved by 17 to 34% on maize, from 18 to 38% on cotton and from 6 to 14% on sorghum, respectively, with residues recycled into compost (T2) and residues used for soil mulching (T3) compared to residues exported (T1).”
Claim · model-written summary
Residue management and tillage significantly increased maize, sorghum and cotton yields after three years.
- Taxon
- maize, sorghum, and cottonGossypium hirsutum
Sorghum
Zea mayse0 - Treatment
- Crop residue management and soil tillage technicse0
- Outcome
- yields of maize, sorghum, and cottone0
- Direction
- increasede0
- Qualifier
- after the first three years of experimentatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Crop residue management and soil tillage technics significantly increased the yields of maize, sorghum, and cotton after the first three years of experimentation.”
Claim · model-written summary
Soil chemical properties generally lacked statistically detectable responses except SOM, nitrogen and available K.
- Taxon
- maize, sorghum, and cottonGossypium hirsutumSorghumZea mayse1
- Outcome
- Soil chemical propertiese0
- Direction
- not statistically influencede0
- Qualifier
- except for SOM, nitrogen, and available K contente0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil chemical properties were not statistically influenced, except for SOM, nitrogen, and available K content.”
e1“maize, sorghum, and cotton”
Claim · model-written summary
Residue export caused the greatest decline in soil carbon.
- Taxon
- maize, sorghum, and cottonGossypium hirsutumSorghumZea mayse1
- Treatment
- crop residue exportation (T1)e0
- Outcome
- soil carbon contente0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest decrease in soil carbon content induced by crop residue exportation (T1)”
e1“maize, sorghum, and cotton”
Claim · model-written summary
The authors advise against residue export because it reduces soil carbon.
- Taxon
- maize, sorghum, and cottonGossypium hirsutumSorghumZea mayse1
- Outcome
- crop residue exportation (T1) should not be recommended to farmerse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest decrease in soil carbon content induced by crop residue exportation (T1) should not be recommended to farmers.”
e1“maize, sorghum, and cotton”
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See all 78 papers →8 of 15 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.