Abstract
A field experiment was conducted at the University of Agriculture, Abeokuta (UNAAB), Nigeria to screen three green manure crops in the 1997 cropping season for biomass production. The most promising legume was selected, grown and incorporated insitu along with varying levels of inorganic nitrogen fertilizer. The effects of these treatments on agronomic trait and yield of upland rice and soil chemical properties were then investigated at UNAAB and Olowo-Papa village (OP). In the first experiment three green manure crops, namely, Mucuna utilis, Canavalia ensiformis and Lablab purpureus were screened for biomass production in a Randomized Complete Block Design with three replicates. The biomass of M. utilis (25.5 t/ha) was significantly higher than those of C. ensiformis (20.4 t/ha) and L. Purpureus (2.1 t/ha). The second experiment was laid out in a split- plot design at the two sites. Mucuna, which produced the highest biomass in the first experiment, was chosen as the green manure crop. The main plot was green manure (no green manure and green manure) and N-fertilizer constituted the subplot treatment (0, 30, 60 and 90 kg N/ha). The results showed that rice plants grown on green manure plot had higher panicles/m2, number of grains/panicle and grain yield than in the control plot. The contribution of green manure incorporation to grain yield was estimated to be 56%. The plot treated with 90 kg N/ha had the highest rice yield at OP. It was found that the response of rice to N fertilizer application depended on green manuring. Mucuna grown with the late rains as pre-rice green manure has the potential of increasing the grain yield of the subsequent rice crop. Keywords: Canavalia ensiformis; inorganic fertilization; Lablab purpureus; Mucuna utiliMoor Journal of Agricultural Research Vol. 7 (1&2) 2006 pp. 1-8
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Claims 7
Claim · model-written summary
Mucuna utilis biomass was significantly higher than that of Canavalia ensiformis (25.5 vs 20.4 t/ha) in the green manure screening.
- Taxon
- M. utilis
.jpg?width=60)
Mucuna pruriens var. utilise1 - Outcome
- biomasse1
- Direction
- highere1
- Value
- 25.5 t/hae1
- Qualifier
- 20.4 t/hae1
- Comparator
- C. ensiformise1
- Setting
- University of Agriculture, Abeokuta (UNAAB), Nigeriae2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e1“The biomass of M. utilis (25.5 t/ha) was significantly higher than those of C. ensiformis (20.4 t/ha) and L. Purpureus (2.1 t/ha)”
e2“A field experiment was conducted at the University of Agriculture, Abeokuta (UNAAB), Nigeria”
Claim · model-written summary
Mucuna utilis biomass was significantly higher than that of Lablab purpureus (25.5 vs 2.1 t/ha) in the green manure screening.
- Taxon
- M. utilisMucuna pruriens var. utilise1
- Outcome
- biomasse1
- Direction
- highere1
- Value
- 25.5 t/hae1
- Qualifier
- 2.1 t/hae1
- Comparator
- L. Purpureuse1
- Setting
- University of Agriculture, Abeokuta (UNAAB), Nigeriae2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The biomass of M. utilis (25.5 t/ha) was significantly higher than those of C. ensiformis (20.4 t/ha) and L. Purpureus (2.1 t/ha)”
e2“A field experiment was conducted at the University of Agriculture, Abeokuta (UNAAB), Nigeria”
Claim · model-written summary
Rice plants grown on green manure plots had higher panicles per m2, grains per panicle and grain yield than on the control plot.
- Taxon
- rice
Oryza sativae3 - Treatment
- green manuree3
- Outcome
- panicles/m2, number of grains/panicle and grain yielde3
- Direction
- highere3
- Comparator
- control plote3
- Setting
- UNAAB and Olowo-Papa village (OP)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“The results showed that rice plants grown on green manure plot had higher panicles/m2, number of grains/panicle and grain yield than in the control plot”
e0“investigated at UNAAB and Olowo-Papa village (OP)”
Claim · model-written summary
Green manure incorporation contributed an estimated 56% to rice grain yield relative to the control.
- Taxon
- riceOryza sativae3
- Treatment
- green manure incorporatione4
- Outcome
- grain yielde4
- Direction
- increaseinferrede4
- Value
- 56%e4
- Comparator
- control plote3
- Setting
- UNAAB and Olowo-Papa village (OP)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The contribution of green manure incorporation to grain yield was estimated to be 56%”
e3“The results showed that rice plants grown on green manure plot had higher panicles/m2, number of grains/panicle and grain yield than in the control plot”
e0“investigated at UNAAB and Olowo-Papa village (OP)”
Claim · model-written summary
The 90 kg N/ha treatment gave the highest rice yield at Olowo-Papa village (OP).
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“The plot treated with 90 kg N/ha had the highest rice yield at OP”
e0“investigated at UNAAB and Olowo-Papa village (OP)”
Claim · model-written summary
The response of rice to N fertilizer application depended on green manuring.
- Taxon
- riceOryza sativae6
- Treatment
- green manuringe6
- Outcome
- response of rice to N fertilizer applicatione6
- Setting
- UNAAB and Olowo-Papa village (OP)e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“It was found that the response of rice to N fertilizer application depended on green manuring”
e0“investigated at UNAAB and Olowo-Papa village (OP)”
Claim · model-written summary
Mucuna grown with the late rains as pre-rice green manure has the potential to increase the grain yield of the subsequent rice crop.
- Taxon
- riceOryza sativae7
- Treatment
- Mucuna grown with the late rains as pre-rice green manuree7
- Outcome
- grain yielde7
- Direction
- increasinge7
- Qualifier
- has the potentiale7
- Setting
- UNAAB and Olowo-Papa village (OP)e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Mucuna grown with the late rains as pre-rice green manure has the potential of increasing the grain yield of the subsequent rice crop”
e0“investigated at UNAAB and Olowo-Papa village (OP)”
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See all 3,455 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.