Abstract
Field studies were conducted at the Teaching and Research farm of the Cross River University of Technology, Obubra Campus, Nigeria, during the 2005 and 2006 cropping seasons to determine the agronomic performance of maize under different rates of poultry manure (PM) application. Ten rates of PM treatments consisting of 0, 4, 6, 8, 10, 12, 14, 16, 18, and 20 t/ha were used in this study. The treatments were laid out in a randomized complete block design with three replications. PM application significantly improved maize vegetative growth, biomass, yield components and grain yield. The use of 20 t/ha PM gave the highest maize plant height, stem diameter and number of leaves per plant; while the best 1000-seed weights of 273.5 and 270.7 g, as well as grain yields of 2.78 and 2.89 t/ha were obtained with the application of 18 t/ha PM in 2005 and 2006 cropping seasons, respectively. Moreover, all the evaluated traits were strongly positively correlated with each other (P < 0.0001). Our results indicated that while high rates of PM linearly improved growth attributes up to the highest rate of PM treatment (20 t/ ha), a dose of 18 t/ha applied two weeks before planting was best for maize production in the study area.
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Claims 8
Claim · model-written summary
Poultry manure significantly improved maize vegetative growth, biomass, yield components and grain yield.
- Treatment
- PM applicatione0
- Outcome
- vegetative growth, biomass, yield components and grain yielde0
- Direction
- improvede0
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PM application significantly improved maize vegetative growth, biomass, yield components and grain yield”
Claim · model-written summary
The 20 t/ha manure rate gave the greatest maize plant height, stem diameter and leaf number.
- Treatment
- 20 t/ha PMe0
- Outcome
- plant height, stem diameter and number of leaves per plante0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The use of 20 t/ha PM gave the highest maize plant height, stem diameter and number of leaves per plant”
Claim · model-written summary
The 18 t/ha rate produced 273.5 g 1000-seed weight in 2005.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the best 1000-seed weights of 273.5 and 270.7 g, as well as grain yields of 2.78 and 2.89 t/ha were obtained with the application of 18 t/ha PM in 2005 and 2006 cropping seasons, respectively”
t0“Maize”
Claim · model-written summary
The 18 t/ha rate produced 270.7 g 1000-seed weight in 2006.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the best 1000-seed weights of 273.5 and 270.7 g, as well as grain yields of 2.78 and 2.89 t/ha were obtained with the application of 18 t/ha PM in 2005 and 2006 cropping seasons, respectively”
t0“Maize”
Claim · model-written summary
The 18 t/ha rate produced 2.78 t/ha grain yield in 2005.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grain yields of 2.78 and 2.89 t/ha were obtained with the application of 18 t/ha PM in 2005 and 2006 cropping seasons, respectively”
t0“Maize”
Claim · model-written summary
The 18 t/ha rate produced 2.89 t/ha grain yield in 2006.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grain yields of 2.78 and 2.89 t/ha were obtained with the application of 18 t/ha PM in 2005 and 2006 cropping seasons, respectively”
t0“Maize”
Claim · model-written summary
Evaluated maize traits were strongly positively correlated.
Not reportedMaterial
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all the evaluated traits were strongly positively correlated with each other (P < 0.0001)”
t0“Maize”
Claim · model-written summary
The authors identified 18 t/ha applied two weeks before planting as best for maize production locally.
- Outcome
- 18 t/ha applied two weeks before planting was best for maize productione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a dose of 18 t/ha applied two weeks before planting was best for maize production in the study area”
The same questions in other papers
fertilization · yield · Zea mays (maize)Positive and negative results
3,484 papers in the same direction as this paper · 338 in the opposite direction · 85 reporting no difference from an alternative
- no effect
- negative
- positive
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