Abstract
ABSTRACT:- Application of inadequate quantities of fertilizers limits maize yield in Ghana. Experiments were conducted to determine the effect of Mucuna pruriens, Canavalia ensiformis, and soybean (Glycine max (L.) Merrill) on maize (Zea mays L.) grain yield under 4 mineral fertilizer N levels in a rotational system. The legumes were established in April of 1996 and 1997 at Ejura in the forest-savanna transition zone of Ghana. During August of the respective years, the vegetation on the plots was slashed with a cutlass. Maize was planted in all the plots with blanket P and K application. Fertilizer N was applied as urea at four rates (0, 30, 60 and 90 kg N/ha) to the maize in split applications at 1 and 5 weeks after planting. Mucuna and Canavalia produced more than 3 t/ha of biomass within 4 months. Mean maize grain yields after the legumes without fertilizer N were 2.3, 1.6 and 1.0 t/ha for Mucuna, Canavalia and soybean, respectively. Maize grown after legumes responded to fertilizer N and this is an indication that the legumes didn’t supply the entire N required by maize for optimum yield. The highest marginal rates of return of maize grown after canavalia and soybean were at 90 kg N/ha whilst that of mucuna was at 60 kg N/ha. It was concluded that planting Mucuna and maize in rotation is the best among the systems considered in terms of monetary gain and soil organic matter addition and the application of 60 kg N/ha to maize planted after Mucuna was the most efficient management option.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 11
Claim · model-written summary
Mucuna produced more than 3 t/ha biomass within four months.
MucunaOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mucuna and Canavalia produced more than 3 t/ha of biomass within 4 months.”
Claim · model-written summary
Canavalia produced more than 3 t/ha biomass within four months.
CanavaliaOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mucuna and Canavalia produced more than 3 t/ha of biomass within 4 months.”
Claim · model-written summary
Maize after Mucuna yielded 2.3 t/ha without fertilizer nitrogen.
Zea maysNot reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mean maize grain yields after the legumes without fertilizer N were 2.3, 1.6 and 1.0 t/ha for Mucuna, Canavalia and soybean, respectively.”
Claim · model-written summary
Maize after Canavalia yielded 1.6 t/ha without fertilizer nitrogen.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mean maize grain yields after the legumes without fertilizer N were 2.3, 1.6 and 1.0 t/ha for Mucuna, Canavalia and soybean, respectively.”
Claim · model-written summary
Maize after soybean yielded 1.0 t/ha without fertilizer nitrogen.
- Treatment
- soybeane0
- Interactor
- soybean
Glycine maxe0other - Outcome
- maize grain yieldse0
- Value
- 1.0 t/hae0
- Qualifier
- without fertilizer Ne0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mean maize grain yields after the legumes without fertilizer N were 2.3, 1.6 and 1.0 t/ha for Mucuna, Canavalia and soybean, respectively.”
Claim · model-written summary
Maize after legumes responded to fertilizer nitrogen.
- Treatment
- fertilizer Ne0
- Outcome
- Maize grown after legumese0
- Qualifier
- legumes didn’t supply the entire N required by maize for optimum yielde0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maize grown after legumes responded to fertilizer N and this is an indication that the legumes didn’t supply the entire N required by maize for optimum yield.”
Claim · model-written summary
The highest marginal return after Canavalia occurred at 90 kg N/ha.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest marginal rates of return of maize grown after canavalia and soybean were at 90 kg N/ha whilst that of mucuna was at 60 kg N/ha.”
Claim · model-written summary
The highest marginal return after soybean occurred at 90 kg N/ha.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest marginal rates of return of maize grown after canavalia and soybean were at 90 kg N/ha whilst that of mucuna was at 60 kg N/ha.”
Claim · model-written summary
The highest marginal return after Mucuna occurred at 60 kg N/ha.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest marginal rates of return of maize grown after canavalia and soybean were at 90 kg N/ha whilst that of mucuna was at 60 kg N/ha.”
Claim · model-written summary
The authors favored Mucuna–maize rotation for monetary gain and soil organic matter.
- Outcome
- planting Mucuna and maize in rotatione0
- Qualifier
- monetary gain and soil organic matter additione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“planting Mucuna and maize in rotation is the best among the systems considered in terms of monetary gain and soil organic matter addition”
Claim · model-written summary
The authors recommended 60 kg N/ha after Mucuna as the most efficient option.
- Outcome
- application of 60 kg N/ha to maize planted after Mucunae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of 60 kg N/ha to maize planted after Mucuna was the most efficient management option”
The same questions in other papers
fertilization · organism · Zea mays (maize)Results differ
136 papers in the same direction as this paper · 20 in the opposite direction · 5 reporting no difference from an alternative
- negative
- no effect
- no effect
158 papers more in this group
See all 162 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.