Abstract
Abstract Cassava ( Manihot esculenta Crantz) is a staple food crop in Nigeria, but root yields hardly exceed 10 t ha −1 . Intensification of small holders’ cassava production is key to improved food security and income generation. We tested, in two demonstration trials and 20 on‐farm trials, different intensification options: cassava growth type (erect and branching), fertilizer application (with and without), and cassava − legume arrangement (0.5 by 2 m/1 by 1 m spacing of cassava) in demonstration trials. In on‐farm trials, farmers tested a subset of these treatments. The demonstration trials had median cassava yields of about 20 (Akindele village) and 15 (Osunwoyin village) t ha −1 . Fertilizer application increased the yield of the erect cassava variety. Cassava intercropped with cowpea [ Vigna unguiculata (L.) Walp.], reduced yield and the branching cassava variety produced lower yield than the erect variety. Median cowpea yields were about 1 and 1.5 t ha −1 pod yield. Median yields in the on‐farm trials were about 10 t ha −1 . Intercropping with cowpea reduced cassava root yields (on average by 2.4 t ha −1 ), again, cowpea pod yields of 1−1.5 t ha −1 were attainable. In summary, this study confirmed that intensification measures need to be site and user or farmer specific.
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Claims 10
Claim · model-written summary
Demonstration trials produced median cassava yields of about 20 t ha−1 at Akindele.
- Taxon
- cassava
Manihot esculentae0 - Outcome
- median cassava yieldse0
- Value
- about 20e0
- Setting
- Akindele villagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The demonstration trials had median cassava yields of about 20 (Akindele village) and 15 (Osunwoyin village) t ha −1 .”
Claim · model-written summary
Demonstration trials produced median cassava yields of about 15 t ha−1 at Osunwoyin.
- Taxon
- cassavaManihot esculentae0
- Outcome
- median cassava yieldse0
- Value
- 15e0
- Setting
- Osunwoyin villagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The demonstration trials had median cassava yields of about 20 (Akindele village) and 15 (Osunwoyin village) t ha −1 .”
Claim · model-written summary
Fertilizer increased yield of the erect cassava variety.
- Taxon
- cassavaManihot esculentae0
- Material
- erect cassava varietye0
- Treatment
- Fertilizer applicatione0
- Outcome
- yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fertilizer application increased the yield of the erect cassava variety.”
Claim · model-written summary
Cowpea intercropping reduced cassava yield.
- Taxon
- CassavaManihot esculentae0
- Treatment
- intercropped with cowpeae0
- Interactor
- cowpea
Vigna unguiculatae0other - Outcome
- yielde0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cassava intercropped with cowpea [ Vigna unguiculata (L.) Walp.], reduced yield”
Claim · model-written summary
The branching cassava variety yielded less than the erect variety.
- Taxon
- cassavaManihot esculentae0
- Material
- branching cassava varietye0
- Outcome
- yielde0
- Direction
- lowere0
- Comparator
- erect varietye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the branching cassava variety produced lower yield than the erect variety.”
Claim · model-written summary
Demonstration trials had median cowpea pod yields near 1 and 1.5 t ha−1.
- Taxon
- cowpeaVigna unguiculatae0
- Outcome
- pod yielde0
- Value
- about 1 and 1.5 t ha −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Median cowpea yields were about 1 and 1.5 t ha −1 pod yield.”
Claim · model-written summary
On farm cassava trials had median yields near 10 t ha−1.
- Taxon
- cassavaManihot esculentat0
- Outcome
- Median yieldse0
- Value
- about 10 t ha −1e0
- Setting
- on‐farm trialse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Median yields in the on‐farm trials were about 10 t ha −1 .”
t0“cassava production”
Claim · model-written summary
Cowpea intercropping reduced cassava root yield by an average of 2.4 t ha−1 on farms.
- Taxon
- cassavaManihot esculentae0
- Treatment
- Intercropping with cowpeae0
- Interactor
- cowpeaVigna unguiculatae0other
- Outcome
- cassava root yieldse0
- Direction
- reducede0
- Value
- 2.4 t ha −1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Intercropping with cowpea reduced cassava root yields (on average by 2.4 t ha −1 )”
Claim · model-written summary
Cowpea pod yields of 1 to 1.5 t ha−1 were attained on farms.
- Taxon
- cowpeaVigna unguiculatae0
- Outcome
- cowpea pod yieldse0
- Value
- 1−1.5 t ha −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cowpea pod yields of 1−1.5 t ha −1 were attainable.”
Claim · model-written summary
The authors recommend tailoring intensification measures to site and farmer.
- Taxon
- cassavaManihot esculentat0
- Outcome
- site and user or farmer specifice0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“intensification measures need to be site and user or farmer specific.”
t0“cassava production”
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