Abstract
The increasingly high cost of mineral fertilizers and a preferred economic disposal of wood ash had necessitated a research in the use of wood ash to reduce the rate of fertilizer application for maize production. The comparative effects of wood ash and NPK 15-15-15 on maize were investigated in Akure (7 15’N, 5 15’E 0 0 ) Nigeria in 2008. The four treatments investigated were 4t/ha wood ash, 300 kg/ha NPK 15-15-15, 200kg/ha NPK 15-15-15 plus 2t/ha wood ash mixture and a control plot without manure while the land preparation was ploughing once and harrowing once. Downy Mildew Resistant (DMR) open pollinated maize variety was planted at 60 x 30cm in a randomized complete block experiment replicated four times and the manure applied in a ring at 10 cm from the maize plant. Pretreatment soil analysis that entailed taking soil samples before the application of manure was carried out. Two maize crops were investigated and the means of data computed for comparisons across treatments. The total leaf area per plant, leaf area index and the chlorophyll content were correlated to the grain yield. The profitable response was computed to confirm the economic viability. The chlorophyll content and the grain yield were significantly high in 200kg/ha NPK 15-15-15 + 2t/ha wood ash mixture and in 300 kg/ha NPK 15-15-15 compared to other treatments. Corresponding higher net revenues were also obtained which confirmed a mixture of wood ash and inorganic mineral fertilizers to be a suitable agronomic practice for profitable maize production.
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Claims 5
Claim · model-written summary
200kg/ha NPK 15-15-15 + 2t/ha wood ash mixture gave significantly high chlorophyll content versus other treatments.
- Treatment
- 200kg/ha NPK 15-15-15 + 2t/ha wood ash mixturee0
- Outcome
- chlorophyll contente0
- Direction
- highe0
- Comparator
- other treatmentse0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The chlorophyll content and the grain yield were significantly high in 200kg/ha NPK 15-15-15 + 2t/ha wood ash mixture and in 300 kg/ha NPK 15-15-15 compared to other treatments.”
t0“maize (Zea mays L.)”
Claim · model-written summary
200kg/ha NPK 15-15-15 + 2t/ha wood ash mixture gave significantly high grain yield versus other treatments.
- Treatment
- 200kg/ha NPK 15-15-15 + 2t/ha wood ash mixturee0
- Outcome
- grain yielde0
- Direction
- highe0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The chlorophyll content and the grain yield were significantly high in 200kg/ha NPK 15-15-15 + 2t/ha wood ash mixture and in 300 kg/ha NPK 15-15-15 compared to other treatments.”
t0“maize (Zea mays L.)”
Claim · model-written summary
300 kg/ha NPK 15-15-15 gave significantly high chlorophyll content versus other treatments.
- Treatment
- 300 kg/ha NPK 15-15-15e0
- Outcome
- chlorophyll contente0
- Direction
- highe0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The chlorophyll content and the grain yield were significantly high in 200kg/ha NPK 15-15-15 + 2t/ha wood ash mixture and in 300 kg/ha NPK 15-15-15 compared to other treatments.”
t0“maize (Zea mays L.)”
Claim · model-written summary
300 kg/ha NPK 15-15-15 gave significantly high grain yield versus other treatments.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The chlorophyll content and the grain yield were significantly high in 200kg/ha NPK 15-15-15 + 2t/ha wood ash mixture and in 300 kg/ha NPK 15-15-15 compared to other treatments.”
t0“maize (Zea mays L.)”
Claim · model-written summary
The fertilizer treatments with higher chlorophyll and grain yield also gave higher net revenues.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Corresponding higher net revenues were also obtained which confirmed a mixture of wood ash and inorganic mineral fertilizers to be a suitable agronomic practice for profitable maize production.”
t0“maize (Zea mays L.)”
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