Abstract
Maintenance of soil fertility status and optimum crop yield has been a great task in Nigeria. Against this background, studies were conducted in 1994 and 1995 growing seasons at the Teaching and Research Farm, University of Ibadan, Nigeria to evaluate the productivity of cassava and soil properties and dynamics under some tillage practices. Randomized block design with four replications was used and the tillage treatments were Heaping [HP], No-Till + Herbicide [NTH], Ridging [RG] and No-Till-Slash and Burn [NSB]. Results revealed that tillage practices had no significant effect on sprouting percentage in 1994 but in 1995, HP treatment was significantly (P < 0.05) higher than others. Tillage had no marked effect on cassava height in both years while number of leaves only differed significantly (P < 0.05) 8 months after planting with HP treatment being higher than others. Stem girth showed no marked differences among treatments in both years. Similarly, in both years, cassava fresh root yield and yield components were not significantly affected by tillage practices. NSB showed significantly higher soil bulk density at planting in both years than other treatments. Generally, soil chemical properties were not markedly affected by the tillage practices. The highest cost of production was observed under NSB while RG produced the highest returns. The study suggests that successful growing of cassava under reduced tillage practices is practicable in an Alfisol in this agro-ecological zone.
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Claims 11
Claim · model-written summary
Tillage practices had no significant effect on cassava sprouting percentage in 1994.
- Taxon
- cassava
Manihot esculentae1 - Treatment
- tillage practicese3
- Outcome
- sprouting percentagee3
- Direction
- no_changeinferrede3
- Qualifier
- in 1994e3
- Setting
- Teaching and Research Farm, University of Ibadan, Nigeriae1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“studies were conducted in 1994 and 1995 growing seasons at the Teaching and Research Farm, University of Ibadan, Nigeria to evaluate the productivity of cassava and soil properties”
e3“tillage practices had no significant effect on sprouting percentage in 1994 but in 1995, HP treatment was significantly (P < 0.05) higher than others”
Claim · model-written summary
In 1995, Heaping [HP] gave significantly higher cassava sprouting percentage than the other tillage treatments.
- Taxon
- cassavaManihot esculentae1
- Treatment
- Heaping [HP]e2
- Outcome
- sprouting percentagee3
- Direction
- highere3
- Qualifier
- in 1995e3
- Comparator
- otherse3
- Setting
- Teaching and Research Farm, University of Ibadan, Nigeriae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“studies were conducted in 1994 and 1995 growing seasons at the Teaching and Research Farm, University of Ibadan, Nigeria to evaluate the productivity of cassava and soil properties”
e2“the tillage treatments were Heaping [HP], No-Till + Herbicide [NTH], Ridging [RG] and No-Till-Slash and Burn [NSB]”
e3“tillage practices had no significant effect on sprouting percentage in 1994 but in 1995, HP treatment was significantly (P < 0.05) higher than others”
Claim · model-written summary
Tillage had no marked effect on cassava height.
- Taxon
- cassavaManihot esculentae1
- Treatment
- Tillagee4
- Outcome
- cassava heighte4
- Direction
- no_changeinferrede4
- Setting
- Teaching and Research Farm, University of Ibadan, Nigeriae1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“studies were conducted in 1994 and 1995 growing seasons at the Teaching and Research Farm, University of Ibadan, Nigeria to evaluate the productivity of cassava and soil properties”
e4“Tillage had no marked effect on cassava height in both years”
Claim · model-written summary
Heaping [HP] gave significantly more cassava leaves than the other treatments 8 months after planting.
- Taxon
- cassavaManihot esculentae1
- Treatment
- Heaping [HP]e2
- Outcome
- number of leavese5
- Direction
- highere5
- Qualifier
- 8 months after plantinge5
- Comparator
- otherse5
- Setting
- Teaching and Research Farm, University of Ibadan, Nigeriae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“studies were conducted in 1994 and 1995 growing seasons at the Teaching and Research Farm, University of Ibadan, Nigeria to evaluate the productivity of cassava and soil properties”
e2“the tillage treatments were Heaping [HP], No-Till + Herbicide [NTH], Ridging [RG] and No-Till-Slash and Burn [NSB]”
e5“number of leaves only differed significantly (P < 0.05) 8 months after planting with HP treatment being higher than others”
Claim · model-written summary
Stem girth showed no marked differences among tillage treatments in either year.
- Taxon
- cassavaManihot esculentae1
- Treatment
- treatmentse6
- Outcome
- Stem girthe6
- Direction
- no_changeinferrede6
- Setting
- Teaching and Research Farm, University of Ibadan, Nigeriae1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“studies were conducted in 1994 and 1995 growing seasons at the Teaching and Research Farm, University of Ibadan, Nigeria to evaluate the productivity of cassava and soil properties”
e6“Stem girth showed no marked differences among treatments in both years”
Claim · model-written summary
Tillage practices did not significantly affect cassava fresh root yield and yield components.
- Taxon
- cassavaManihot esculentae1
- Treatment
- tillage practicese7
- Outcome
- cassava fresh root yield and yield componentse7
- Direction
- no_changeinferrede7
- Setting
- Teaching and Research Farm, University of Ibadan, Nigeriae1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“studies were conducted in 1994 and 1995 growing seasons at the Teaching and Research Farm, University of Ibadan, Nigeria to evaluate the productivity of cassava and soil properties”
e7“in both years, cassava fresh root yield and yield components were not significantly affected by tillage practices”
Claim · model-written summary
NSB gave significantly higher soil bulk density at planting than the other treatments.
- Taxon
- cassavaManihot esculentae1
- Treatment
- NSBe3
- Outcome
- soil bulk densitye3
- Direction
- highere3
- Qualifier
- at planting in both yearse3
- Comparator
- other treatmentse3
- Setting
- Teaching and Research Farm, University of Ibadan, Nigeriae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“studies were conducted in 1994 and 1995 growing seasons at the Teaching and Research Farm, University of Ibadan, Nigeria to evaluate the productivity of cassava and soil properties”
e3“NSB showed significantly higher soil bulk density at planting in both years than other treatments”
Claim · model-written summary
Soil chemical properties were not markedly affected by tillage practices.
- Taxon
- cassavaManihot esculentae1
- Treatment
- tillage practicese3
- Outcome
- soil chemical propertiese3
- Direction
- no_changeinferrede3
- Setting
- Teaching and Research Farm, University of Ibadan, Nigeriae1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“studies were conducted in 1994 and 1995 growing seasons at the Teaching and Research Farm, University of Ibadan, Nigeria to evaluate the productivity of cassava and soil properties”
e3“Generally, soil chemical properties were not markedly affected by the tillage practices”
Claim · model-written summary
NSB had the highest cost of production.
- Taxon
- cassavaManihot esculentae1
- Treatment
- NSBe2
- Outcome
- cost of productione2
- Direction
- higheste2
- Setting
- Teaching and Research Farm, University of Ibadan, Nigeriae1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“studies were conducted in 1994 and 1995 growing seasons at the Teaching and Research Farm, University of Ibadan, Nigeria to evaluate the productivity of cassava and soil properties”
e2“The highest cost of production was observed under NSB”
Claim · model-written summary
Ridging [RG] produced the highest returns.
- Taxon
- cassavaManihot esculentae1
- Treatment
- Ridging [RG]e2
- Outcome
- returnse3
- Direction
- higheste3
- Setting
- Teaching and Research Farm, University of Ibadan, Nigeriae1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“studies were conducted in 1994 and 1995 growing seasons at the Teaching and Research Farm, University of Ibadan, Nigeria to evaluate the productivity of cassava and soil properties”
e2“the tillage treatments were Heaping [HP], No-Till + Herbicide [NTH], Ridging [RG] and No-Till-Slash and Burn [NSB]”
e3“RG produced the highest returns”
Claim · model-written summary
The authors suggest that successful growing of cassava under reduced tillage is practicable in an Alfisol in this agro-ecological zone.
- Taxon
- cassavaManihot esculentae2
- Outcome
- successful growing of cassava under reduced tillage practicese2
- Setting
- an Alfisol in this agro-ecological zonee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“studies were conducted in 1994 and 1995 growing seasons at the Teaching and Research Farm, University of Ibadan, Nigeria to evaluate the productivity of cassava and soil properties”
e2“The study suggests that successful growing of cassava under reduced tillage practices is practicable in an Alfisol in this agro-ecological zone”
The same questions in other papers
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See all 14 papers →tillage · quality: postharvest · Manihot esculenta (cassava)Results agree
1 paper in the same direction as this paper
- no effect
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.