Abstract
The need for judicious management of resources and conservation of soil under intensive cropping has become major areas of agronomic research. This study was therefore carried out to compare the effects of complementary and sole applications of organic and inorganic fertilizers on the growth and yield of cassava/maize/melon intercrop with a relayed cowpea. It was a randomized complete block design experiment. Organic fertilizer (Poultry manure + decomposed urban refuse (1:1 by weight) was applied at 5 t / ha / year. Inorganic fertilizer (NPK 15-15-15) was applied at 400 kg/ha. The complementary application was 200 kg/ha N PK 15-15-15 + 2.5 t/ha/year poultry manure + decomposed urban refuse (1:1 by weight).There was also the no fertilizer control treatment. Results showed that maize performed best in terms of growth and yield with complementary application of inorganic and organic fertilizers. Melon yield under the various fertilizer treatments did not differ statistically in both years. Cassava root yield with complementary application was comparable with yield from sole inorganic fertilizer treatment in the first year of experimentation when sole organic fertilizer had a significantly lower yield. By the second year however, yields under the various fertilizer treatments were statistically similar. Cowpea yield was significantly higher with complementary application of inorganic and organic fertilizers than from sole organic and inorganic fertilizer treatments. Complementary application of 200 kg/ha NPK 15-15-15 with 2.5 t/ha/year poultry manure + decomposed urban refuse (1:1 by weight) is therefore recommended for sustaining the cultivation of cassava/maize/melon intercrop with a relayed cowpea.
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Claims 7
Claim · model-written summary
Complementary inorganic and organic fertilizer gave the best maize growth and yield.
- Treatment
- complementary application of inorganic and organic fertilizerse0
- Outcome
- growth and yielde0
- Direction
- beste0
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maize performed best in terms of growth and yield with complementary application of inorganic and organic fertilizers”
Claim · model-written summary
Melon yield did not differ statistically among fertilizer treatments in either year.
- Taxon
- Melon
.jpg?width=60)
Cucumis meloe0 - Treatment
- various fertilizer treatmentse0
- Outcome
- yielde0
- Direction
- did not differe0
- Qualifier
- both yearse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Melon yield under the various fertilizer treatments did not differ statistically in both years.”
Claim · model-written summary
In the first year, cassava root yield under complementary fertilizer was comparable to sole inorganic fertilizer.
- Taxon
- Cassava
Manihot esculentae0 - Treatment
- complementary applicatione0
- Outcome
- root yielde0
- Direction
- comparablee0
- Qualifier
- first year of experimentatione0
- Comparator
- sole inorganic fertilizer treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cassava root yield with complementary application was comparable with yield from sole inorganic fertilizer treatment in the first year of experimentation”
Claim · model-written summary
In the first year, sole organic fertilizer produced significantly lower cassava root yield.
- Taxon
- CassavaManihot esculentae0
- Treatment
- sole organic fertilizere0
- Outcome
- root yielde0
- Direction
- lowere0
- Qualifier
- first year of experimentatione0
- Comparator
- complementary applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cassava root yield with complementary application was comparable with yield from sole inorganic fertilizer treatment in the first year of experimentation when sole organic fertilizer had a significantly lower yield”
Claim · model-written summary
By the second year, cassava yields were statistically similar across fertilizer treatments.
- Taxon
- CassavaManihot esculentae1
- Treatment
- various fertilizer treatmentse0
- Outcome
- yieldse0
- Direction
- similare0
- Qualifier
- second yeare0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“By the second year however, yields under the various fertilizer treatments were statistically similar.”
e1“Cassava root yield”
Claim · model-written summary
Complementary inorganic and organic fertilizer gave significantly higher cowpea yield than either sole fertilizer.
- Taxon
- Cowpea
Vigna unguiculatae0 - Treatment
- complementary application of inorganic and organic fertilizerse0
- Outcome
- yielde0
- Direction
- highere0
- Comparator
- sole organic and inorganic fertilizer treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cowpea yield was significantly higher with complementary application of inorganic and organic fertilizers than from sole organic and inorganic fertilizer treatments.”
Claim · model-written summary
The authors recommend complementary NPK and organic manure/refuse for sustaining the cassava, maize, melon and cowpea intercrop.
Verbatim
e0“Complementary application of 200 kg/ha NPK 15-15-15 with 2.5 t/ha/year poultry manure + decomposed urban refuse (1:1 by weight) is therefore recommended for sustaining the cultivation of cassava/maize/melon intercrop with a relayed cowpea.”
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