Abstract
Field experiments were conducted in two villages (Oniyo and Moloko Ashipa) representing two agro ecologies in the south west area of Nigeria during 2000 and 2001 cropping seasons. The objective was to determine the effects of NPK fertilizer and poultry manure on the yield and yield components in cassava/maize/melon systems. The factors were (1) cropping systems: cassava/maize/melon, sole cassava, sole maize and sole melon; and (2) fertilizers: no fertilizer, NPK 15-15-15 (400 kg/ha), poultry manure (5 t/ha), 2.5 t/ha poultry manure + 200 kg/ha NPK 15-15-15 and mineral fertilizer (NPK 15-15-15). Intercropping had no significant effect on cassava root yield but it reduced maize and melon seed yield compared to sole cropping. Land equivalent ratio (LER) values were however higher under intercropping than sole cropping. Crop yields were statistically the same under NPK alone and NPK + poultry manure but significantly higher than both poultry manure alone and control in both locations
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Claims 9
Claim · model-written summary
Intercropping did not significantly change cassava root yield.
- Taxon
- cassava
Manihot esculentae0 - Treatment
- Intercroppinge0
- Outcome
- root yielde0
- Direction
- no significant effecte0
- Comparator
- sole cassavae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Intercropping had no significant effect on cassava root yield”
e1“sole cassava”
Claim · model-written summary
Intercropping reduced maize seed yield relative to sole cropping.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“it reduced maize and melon seed yield compared to sole cropping”
e1“Intercropping had no significant effect”
Claim · model-written summary
Intercropping reduced melon seed yield relative to sole cropping.
- Taxon
- melon
Cucumis meloe0 - Treatment
- Intercroppinge1
- Outcome
- melon seed yielde0
- Direction
- reducede0
- Comparator
- sole croppinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“it reduced maize and melon seed yield compared to sole cropping”
e1“Intercropping had no significant effect”
Claim · model-written summary
Land equivalent ratios were higher under intercropping than sole cropping.
- Taxon
- cassava/maize/melon
Cucumis melo
Manihot esculenta
Zea mayst1 - Treatment
- intercroppinge0
- Outcome
- Land equivalent ratio (LER) valuese0
- Direction
- highere0
- Comparator
- sole croppinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)


Verbatim
e0“Land equivalent ratio (LER) values were however higher under intercropping than sole cropping”
t0“crops under different cropping systems”
t1“cassava/maize/melon systems”
Claim · model-written summary
Crop yields were statistically the same under NPK alone and NPK plus poultry manure.
- Taxon
- cassava/maize/melon
Cucumis melo
Manihot esculenta
Zea mayse1 - Treatment
- NPK alonee0
- Outcome
- Crop yieldse0
- Direction
- statistically the samee0
- Comparator
- NPK + poultry manuree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)


Verbatim
e0“Crop yields were statistically the same under NPK alone and NPK + poultry manure”
e1“cassava/maize/melon systems”
Claim · model-written summary
NPK alone produced higher crop yields than poultry manure alone in both locations.
- Taxon
- cassava/maize/melon
Cucumis melo
Manihot esculenta
Zea mayse1 - Treatment
- NPK alonee0
- Outcome
- Crop yieldse0
- Direction
- highere0
- Comparator
- poultry manure alonee0
- Setting
- both locationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)


Verbatim
e0“Crop yields were statistically the same under NPK alone and NPK + poultry manure but significantly higher than both poultry manure alone and control in both locations”
e1“cassava/maize/melon systems”
Claim · model-written summary
NPK alone produced higher crop yields than control in both locations.
- Taxon
- cassava/maize/melon
Cucumis melo
Manihot esculenta
Zea mayse1 - Treatment
- NPK alonee0
- Outcome
- Crop yieldse0
- Direction
- highere0
- Comparator
- controle0
- Setting
- both locationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)


Verbatim
e0“Crop yields were statistically the same under NPK alone and NPK + poultry manure but significantly higher than both poultry manure alone and control in both locations”
e1“cassava/maize/melon systems”
Claim · model-written summary
NPK plus poultry manure produced higher crop yields than poultry manure alone in both locations.
- Taxon
- cassava/maize/melon
Cucumis melo
Manihot esculenta
Zea mayse1 - Treatment
- NPK + poultry manuree0
- Outcome
- Crop yieldse0
- Direction
- highere0
- Comparator
- poultry manure alonee0
- Setting
- both locationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)


Verbatim
e0“Crop yields were statistically the same under NPK alone and NPK + poultry manure but significantly higher than both poultry manure alone and control in both locations”
e1“cassava/maize/melon systems”
Claim · model-written summary
NPK plus poultry manure produced higher crop yields than control in both locations.
- Taxon
- cassava/maize/melon
Cucumis melo
Manihot esculenta
Zea mayse1 - Treatment
- NPK + poultry manuree0
- Outcome
- Crop yieldse0
- Direction
- highere0
- Comparator
- controle0
- Setting
- both locationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)


Verbatim
e0“Crop yields were statistically the same under NPK alone and NPK + poultry manure but significantly higher than both poultry manure alone and control in both locations”
e1“cassava/maize/melon systems”
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See all 3,908 papers →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.