Abstract
The paper describes research results obtained in the development of improved cultural practices, such as time and method of planting, weed control, fertilization, intercropping and erosion control.Experiments have shown that cassava yields are seriously reduced if either low rainfall or low temperatures are limiting growth during the period of 3-5 months after planting; that planting vertically or inclined produces higher yields than planting horizontally, especially during periods of drought; that planting on ridges is better in the rainy season but planting on the flat is better in the dry season; that high and sustainable yields can be maintained either with the application of 5-10 t/ha of animal manure supplemented with 50-100 kg/ha of N and/or K 2 O as chemical fertilizers (depending on soil fertility characteristics), or by the application of chemical fertilizers alone with a ratio of N:P 2 O 5 :K 2 O of 2:1:2 or 2:1:3, but not by organic or green manures alone; that intercropping with peanut generally increases total income and protects the soil from erosion; and that fertilization, intercropping, contour ridging and contour hedgerows of grasses are simple but effective ways to reduce erosion.
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Claims 15
Claim · model-written summary
Low rainfall during months 3–5 after planting seriously reduces cassava yield.
- Taxon
- cassava
Manihot esculentae0 - Treatment
- low rainfalle0
- Outcome
- cassava yieldse0
- Direction
- reducede0
- Qualifier
- period of 3-5 months after plantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cassava yields are seriously reduced if either low rainfall or low temperatures are limiting growth during the period of 3-5 months after planting”
Claim · model-written summary
Low temperature during months 3–5 after planting seriously reduces cassava yield.
- Taxon
- cassavaManihot esculentae0
- Treatment
- low temperaturese0
- Outcome
- cassava yieldse0
- Direction
- reducede0
- Qualifier
- period of 3-5 months after plantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cassava yields are seriously reduced if either low rainfall or low temperatures are limiting growth during the period of 3-5 months after planting”
Claim · model-written summary
Vertical planting produces higher cassava yields than horizontal planting, especially in drought.
- Taxon
- cassavaManihot esculentat0
- Treatment
- planting verticallye0
- Outcome
- yieldse0
- Direction
- highere0
- Qualifier
- periods of droughte0
- Comparator
- planting horizontallye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“planting vertically or inclined produces higher yields than planting horizontally, especially during periods of drought”
t0“cassava”
Claim · model-written summary
Inclined planting produces higher cassava yields than horizontal planting, especially in drought.
- Taxon
- cassavaManihot esculentat0
- Treatment
- inclinede0
- Outcome
- yieldse0
- Direction
- highere0
- Qualifier
- periods of droughte0
- Comparator
- planting horizontallye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“planting vertically or inclined produces higher yields than planting horizontally, especially during periods of drought”
t0“cassava”
Claim · model-written summary
Ridge planting is better in the rainy season.
- Taxon
- cassavaManihot esculentat0
- Treatment
- planting on ridgese0
- Outcome
- bettere0
- Direction
- bettere0
- Qualifier
- rainy seasone0
- Comparator
- planting on the flate0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“planting on ridges is better in the rainy season but planting on the flat is better in the dry season”
t0“cassava”
Claim · model-written summary
Flat planting is better in the dry season.
- Taxon
- cassavaManihot esculentat0
- Treatment
- planting on the flate0
- Outcome
- bettere0
- Direction
- bettere0
- Qualifier
- dry seasone0
- Comparator
- planting on ridgese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“planting on ridges is better in the rainy season but planting on the flat is better in the dry season”
t0“cassava”
Claim · model-written summary
Animal manure supplemented with chemical N or K fertilizer maintains high, sustainable cassava yields.
- Taxon
- cassavaManihot esculentat0
- Treatment
- 5-10 t/ha of animal manure supplemented with 50-100 kg/ha of N and/or K 2 O as chemical fertilizerse0
- Outcome
- high and sustainable yieldse0
- Direction
- maintainede0
- Qualifier
- depending on soil fertility characteristicse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“high and sustainable yields can be maintained either with the application of 5-10 t/ha of animal manure supplemented with 50-100 kg/ha of N and/or K 2 O as chemical fertilizers (depending on soil fertility characteristics)”
t0“cassava”
Claim · model-written summary
Chemical fertilizers alone at N:P:K ratios of 2:1:2 or 2:1:3 maintain high, sustainable cassava yields.
- Taxon
- cassavaManihot esculentat0
- Treatment
- chemical fertilizers alone with a ratio of N:P 2 O 5 :K 2 O of 2:1:2 or 2:1:3e0
- Outcome
- high and sustainable yieldse0
- Direction
- maintainede0
- Comparator
- organic or green manures alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“high and sustainable yields can be maintained either with the application of 5-10 t/ha of animal manure supplemented with 50-100 kg/ha of N and/or K 2 O as chemical fertilizers (depending on soil fertility characteristics), or by the application of chemical fertilizers alone with a ratio of N:P 2 O 5 :K 2 O of 2:1:2 or 2:1:3, but not by organic or green manures alone”
t0“cassava”
Claim · model-written summary
Organic or green manure alone does not maintain high, sustainable cassava yields.
- Taxon
- cassavaManihot esculentat0
- Treatment
- organic or green manures alonee0
- Outcome
- high and sustainable yieldse0
- Direction
- note0
- Comparator
- chemical fertilizers alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“high and sustainable yields can be maintained either with the application of 5-10 t/ha of animal manure supplemented with 50-100 kg/ha of N and/or K 2 O as chemical fertilizers (depending on soil fertility characteristics), or by the application of chemical fertilizers alone with a ratio of N:P 2 O 5 :K 2 O of 2:1:2 or 2:1:3, but not by organic or green manures alone”
t0“cassava”
Claim · model-written summary
Peanut intercropping generally increases total income.
- Taxon
- cassavaManihot esculentat0
- Treatment
- intercropping with peanute0
- Interactor
- peanut
Arachis hypogaeae0other - Outcome
- total incomee0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“intercropping with peanut generally increases total income and protects the soil from erosion”
t0“cassava”
Claim · model-written summary
Peanut intercropping protects soil from erosion.
- Taxon
- cassavaManihot esculentat0
- Treatment
- intercropping with peanute0
- Interactor
- peanutArachis hypogaeae0other
- Outcome
- soil from erosione0
- Direction
- protectse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“intercropping with peanut generally increases total income and protects the soil from erosion”
t0“cassava”
Claim · model-written summary
Fertilization reduces erosion.
- Taxon
- cassavaManihot esculentat0
- Treatment
- fertilizatione0
- Outcome
- erosione0
- Direction
- reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fertilization, intercropping, contour ridging and contour hedgerows of grasses are simple but effective ways to reduce erosion”
t0“cassava”
Claim · model-written summary
Intercropping reduces erosion.
- Taxon
- cassavaManihot esculentat0
- Treatment
- intercroppinge0
- Outcome
- erosione0
- Direction
- reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fertilization, intercropping, contour ridging and contour hedgerows of grasses are simple but effective ways to reduce erosion”
t0“cassava”
Claim · model-written summary
Contour ridging reduces erosion.
- Taxon
- cassavaManihot esculentat0
- Treatment
- contour ridginge0
- Outcome
- erosione0
- Direction
- reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fertilization, intercropping, contour ridging and contour hedgerows of grasses are simple but effective ways to reduce erosion”
t0“cassava”
Claim · model-written summary
Grass contour hedgerows reduce erosion.
- Taxon
- cassavaManihot esculentat0
- Treatment
- contour hedgerows of grassese0
- Outcome
- erosione0
- Direction
- reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fertilization, intercropping, contour ridging and contour hedgerows of grasses are simple but effective ways to reduce erosion”
t0“cassava”
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