Abstract
Abstract Maize ( Zea mays L.) is one of the most important cereal crops in Ethiopia. However, its yield is lower than its potential mainly due to low soil fertility problems caused by continuous cultivation, limited use of organic and inorganic fertilizers, erosion, and leaching. Therefore, this field experiment has been conducted to optimize brewery sludge and blended NPS fertilizer rates to harness the maximum productivity potential of maize in North Mecha District, northwestern Ethiopia. The experiment was designed in a factorial arrangement of three levels of brewery sludge (0, 10, and 20 t ha −1 ) and four levels of blended NPS fertilizer (0, 50, 100, and 150 kg ha −1 ) in a randomized complete block design with three replications. The analysis of variance showed that the main effects of the blended NPS fertilizer had significant effects on the ear length, number of kernels per row, stover yield, and 1000‐kernel weight. Their interactions also had a significant effect on leaf area, leaf area index, aboveground dry biomass yield, grain yield, plant height, number of ears per plant, number of rows per ear, number of kernels per row, number of kernels per ear, and harvest index. Accordingly, the combined application of 10 t ha −1 brewery sludge and 100 kg ha −1 blended NPS fertilizer resulted in the highest grain yield (9163.4 kg ha −1 ), net benefit (145,590.1 ETB [Ethiopian Birr] ha −1 ), and marginal rate of return (3789.30%) of maize. Thus, this treatment can be tentatively recommended for the North Mecha district.
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Claims 6
Claim · model-written summary
Blended NPS fertilizer significantly affected ear length, kernels per row, stover yield and 1000-kernel weight.
- Treatment
- blended NPS fertilizere0
- Outcome
- ear length, number of kernels per row, stover yield, and 1000‐kernel weighte0
Zea maysNot reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“main effects of the blended NPS fertilizer had significant effects on the ear length, number of kernels per row, stover yield, and 1000‐kernel weight”
t0“maize”
Claim · model-written summary
Sludge and NPS interactions significantly affected leaf area, biomass, yield and yield components.
- Treatment
- brewery sludgee1
- Outcome
- leaf area, leaf area index, aboveground dry biomass yield, grain yield, plant height, number of ears per plant, number of rows per ear, number of kernels per row, number of kernels per ear, and harvest indexe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Their interactions also had a significant effect on leaf area, leaf area index, aboveground dry biomass yield, grain yield, plant height, number of ears per plant, number of rows per ear, number of kernels per row, number of kernels per ear, and harvest index”
t0“maize”
e1“three levels of brewery sludge”
Claim · model-written summary
The 10 t ha −1 sludge plus 100 kg ha −1 NPS treatment gave the highest grain yield of 9163.4 kg ha −1.
- Treatment
- 10 t ha −1 brewery sludge and 100 kg ha −1 blended NPS fertilizere0
- Outcome
- grain yielde0
- Direction
- higheste0
- Value
- 9163.4 kg ha −1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“combined application of 10 t ha −1 brewery sludge and 100 kg ha −1 blended NPS fertilizer resulted in the highest grain yield (9163.4 kg ha −1 )”
t0“maize”
Claim · model-written summary
The same combination had a net benefit of 145,590.1 ETB ha −1.
- Treatment
- 10 t ha −1 brewery sludge and 100 kg ha −1 blended NPS fertilizere1
- Outcome
- net benefite0
- Value
- 145,590.1 ETB [Ethiopian Birr] ha −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“net benefit (145,590.1 ETB [Ethiopian Birr] ha −1 )”
t0“maize”
e1“10 t ha −1 brewery sludge and 100 kg ha −1 blended NPS fertilizer”
Claim · model-written summary
The same combination had a marginal rate of return of 3789.30%.
- Treatment
- 10 t ha −1 brewery sludge and 100 kg ha −1 blended NPS fertilizere1
- Outcome
- marginal rate of returne0
- Value
- 3789.30%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“marginal rate of return (3789.30%)”
t0“maize”
e1“10 t ha −1 brewery sludge and 100 kg ha −1 blended NPS fertilizer”
Claim · model-written summary
The authors tentatively recommend the combined treatment for North Mecha.
- Treatment
- 10 t ha −1 brewery sludge and 100 kg ha −1 blended NPS fertilizere1
- Outcome
- tentatively recommendede0
- Setting
- North Mecha districte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thus, this treatment can be tentatively recommended for the North Mecha district”
t0“maize”
e1“10 t ha −1 brewery sludge and 100 kg ha −1 blended NPS fertilizer”
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