Abstract
A field experiment was conducted in 2002 and 2003 cropping seasons, at the University of Ibadan Teaching and Research Farm to evaluate the effects of fertilizer types and different companion crops on the performance of sweet potato. The results obtained showed that the growth and yield of sweet potato were significantly influenced by fertilizer types and different companion crops. The significant percentage increases in sweet potato leaf area under fertilizer types were 182, 216 and 336% by inorganic, organic and inorganic +organic fertilizers, respectively. The significant percentage decreases in sweet potato leaf area under different companion crops were 23, 35 and 49% by sweet potato /maize, sweet potato/ cassava and sweet potato/cassava/cocoyam, respectively. The significant percentage increases in the length of sweet potato root tuber under fertilizer types were 15, 25 and 39% by inorganic, organic and inorganic+organic fertilizers, respectively. The significant percentage decreases in the length of sweet potato root tuber under different companion crops were 13 and 23% by sweet potato/ cassava and sweet potato/cassava /cocoyam, respectively. The significant percentage increases in sweet potato root tuber yield under fertilizer types were 27, 47 and 97% by inorganic, organic and inorganic + organic fertilizers, respectively. The significant percentage decreases in root tuber yield of sweet potato under companion crops were 9 and 19% by sweet potato/cassava and sweet potato/cassava/cocoyam, respectively. Keywords: cassava, cocoyam, fertilizer types, inorganic, organic fertilizer, maize Moor Journal of Agricultural Research Vol. 5(2) 2004: 88-94
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Claims 16
Claim · model-written summary
Inorganic fertilizer increased sweet potato leaf area by 182%.
- Taxon
- sweet potato
_Flower.jpg?width=60)
Ipomoea batatase0 - Treatment
- inorganice0
- Outcome
- sweet potato leaf areae0
- Direction
- increasese0
- Value
- 182e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“percentage increases in sweet potato leaf area under fertilizer types were 182, 216 and 336% by inorganic, organic and inorganic +organic fertilizers”
Claim · model-written summary
Organic fertilizer increased sweet potato leaf area by 216%.
- Taxon
- sweet potatoIpomoea batatase0
- Treatment
- organice0
- Outcome
- sweet potato leaf areae0
- Direction
- increasese0
- Value
- 216e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“percentage increases in sweet potato leaf area under fertilizer types were 182, 216 and 336% by inorganic, organic and inorganic +organic fertilizers”
Claim · model-written summary
Combined inorganic and organic fertilizer increased sweet potato leaf area by 336%.
- Taxon
- sweet potatoIpomoea batatase0
- Treatment
- inorganic +organic fertilizerse0
- Outcome
- sweet potato leaf areae0
- Direction
- increasese0
- Value
- 336%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“percentage increases in sweet potato leaf area under fertilizer types were 182, 216 and 336% by inorganic, organic and inorganic +organic fertilizers”
Claim · model-written summary
Sweet potato with maize had 23% less leaf area.
- Taxon
- sweet potatoIpomoea batatase0
- Treatment
- sweet potato /maizee0
- Outcome
- sweet potato leaf areae0
- Direction
- decreasese0
- Value
- 23e0
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“percentage decreases in sweet potato leaf area under different companion crops were 23, 35 and 49% by sweet potato /maize, sweet potato/ cassava and sweet potato/cassava/cocoyam”
Claim · model-written summary
Sweet potato with cassava had 35% less leaf area.
- Taxon
- sweet potatoIpomoea batatase0
- Treatment
- sweet potato/ cassavae0
- Interactor
- cassava
Manihot esculentae0weed - Outcome
- sweet potato leaf areae0
- Direction
- decreasese0
- Value
- 35e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“percentage decreases in sweet potato leaf area under different companion crops were 23, 35 and 49% by sweet potato /maize, sweet potato/ cassava and sweet potato/cassava/cocoyam”
Claim · model-written summary
Sweet potato with cassava and cocoyam had 49% less leaf area.
- Taxon
- sweet potatoIpomoea batatase0
- Treatment
- sweet potato/cassava/cocoyame0
- Interactor
- cassavaManihot esculentae0weed
- Second interactor
- cocoyam
_Colocasia_esculenta_-_Les_Martels%2C_Giroussens_Tarn.jpg?width=60)
Colocasia esculentae0weed - Outcome
- sweet potato leaf areae0
- Direction
- decreasese0
- Value
- 49%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Colocasia_esculenta_-_Les_Martels%2C_Giroussens_Tarn.jpg?width=500)
Verbatim
e0“percentage decreases in sweet potato leaf area under different companion crops were 23, 35 and 49% by sweet potato /maize, sweet potato/ cassava and sweet potato/cassava/cocoyam”
Claim · model-written summary
Inorganic fertilizer increased sweet potato tuber length by 15%.
- Taxon
- sweet potatoIpomoea batatase0
- Treatment
- inorganice0
- Outcome
- length of sweet potato root tubere0
- Direction
- increasese0
- Value
- 15e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“percentage increases in the length of sweet potato root tuber under fertilizer types were 15, 25 and 39% by inorganic, organic and inorganic+organic fertilizers”
Claim · model-written summary
Organic fertilizer increased sweet potato tuber length by 25%.
- Taxon
- sweet potatoIpomoea batatase0
- Treatment
- organice0
- Outcome
- length of sweet potato root tubere0
- Direction
- increasese0
- Value
- 25e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“percentage increases in the length of sweet potato root tuber under fertilizer types were 15, 25 and 39% by inorganic, organic and inorganic+organic fertilizers”
Claim · model-written summary
Combined fertilizer increased sweet potato tuber length by 39%.
- Taxon
- sweet potatoIpomoea batatase0
- Treatment
- inorganic+organic fertilizerse0
- Outcome
- length of sweet potato root tubere0
- Direction
- increasese0
- Value
- 39%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“percentage increases in the length of sweet potato root tuber under fertilizer types were 15, 25 and 39% by inorganic, organic and inorganic+organic fertilizers”
Claim · model-written summary
Cassava companion cropping decreased sweet potato tuber length by 13%.
- Taxon
- sweet potatoIpomoea batatase0
- Treatment
- sweet potato/ cassavae0
- Interactor
- cassavaManihot esculentae0weed
- Outcome
- length of sweet potato root tubere0
- Direction
- decreasese0
- Value
- 13e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“percentage decreases in the length of sweet potato root tuber under different companion crops were 13 and 23% by sweet potato/ cassava and sweet potato/cassava /cocoyam”
Claim · model-written summary
Cassava and cocoyam companion cropping decreased sweet potato tuber length by 23%.
- Taxon
- sweet potatoIpomoea batatase0
- Treatment
- sweet potato/cassava /cocoyame0
- Interactor
- cassavaManihot esculentae0weed
- Second interactor
- cocoyamColocasia esculentae0weed
- Outcome
- length of sweet potato root tubere0
- Direction
- decreasese0
- Value
- 23%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“percentage decreases in the length of sweet potato root tuber under different companion crops were 13 and 23% by sweet potato/ cassava and sweet potato/cassava /cocoyam”
Claim · model-written summary
Inorganic fertilizer increased sweet potato tuber yield by 27%.
- Taxon
- sweet potatoIpomoea batatase0
- Treatment
- inorganice0
- Outcome
- sweet potato root tuber yielde0
- Direction
- increasese0
- Value
- 27e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“percentage increases in sweet potato root tuber yield under fertilizer types were 27, 47 and 97% by inorganic, organic and inorganic + organic fertilizers”
Claim · model-written summary
Organic fertilizer increased sweet potato tuber yield by 47%.
- Taxon
- sweet potatoIpomoea batatase0
- Treatment
- organice0
- Outcome
- sweet potato root tuber yielde0
- Direction
- increasese0
- Value
- 47e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“percentage increases in sweet potato root tuber yield under fertilizer types were 27, 47 and 97% by inorganic, organic and inorganic + organic fertilizers”
Claim · model-written summary
Combined fertilizer increased sweet potato tuber yield by 97%.
- Taxon
- sweet potatoIpomoea batatase0
- Treatment
- inorganic + organic fertilizerse0
- Outcome
- sweet potato root tuber yielde0
- Direction
- increasese0
- Value
- 97%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“percentage increases in sweet potato root tuber yield under fertilizer types were 27, 47 and 97% by inorganic, organic and inorganic + organic fertilizers”
Claim · model-written summary
Cassava companion cropping decreased sweet potato tuber yield by 9%.
- Taxon
- sweet potatoIpomoea batatase0
- Treatment
- sweet potato/cassavae0
- Interactor
- cassavaManihot esculentae0weed
- Outcome
- root tuber yield of sweet potatoe0
- Direction
- decreasese0
- Value
- 9e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“percentage decreases in root tuber yield of sweet potato under companion crops were 9 and 19% by sweet potato/cassava and sweet potato/cassava/cocoyam”
Claim · model-written summary
Cassava and cocoyam companion cropping decreased sweet potato tuber yield by 19%.
- Taxon
- sweet potatoIpomoea batatase0
- Treatment
- sweet potato/cassava/cocoyame0
- Interactor
- cassavaManihot esculentae0weed
- Second interactor
- cocoyamColocasia esculentae0weed
- Outcome
- root tuber yield of sweet potatoe0
- Direction
- decreasese0
- Value
- 19%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“percentage decreases in root tuber yield of sweet potato under companion crops were 9 and 19% by sweet potato/cassava and sweet potato/cassava/cocoyam”
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