Abstract
Three field experiments were carried out to test the response of maize grain yield to the application of green manure from five species of shrubs and one tree species in four sites in Western Kenya. The species tested were Senna (=Cassia) spectabilis, Lantana camara, Tithonia diversifolia, Calliandra calothrysus, Psidium guajava (guava) and Grevillea robusta. At two of the experimental sites, groups of farmers tested the response of maize to the application of green manure from tithonia and lantana under their own field conditions and management. The rate of green manure application ranged from 5 to 20 t/ha on dry matter basis. The control plot that was adopted in this experiment was a continously cropped plot which did not receive green manure. Tithonia and lantana green manure gave the highest maize grain yields (4–5 t/ha) when applied at the rate of 5 t/ha but there were no yield differences between treatments with the two species when the rate of application of green manure was increased to 10 and 20 t/ha. The residual effect from tithonia and lantana green manure was more pronounced than from treatments with phosphoric fertilisers. Farmers realised comparatively higher maize grain yields from the application of tithonia green manure than from lantana although most them did not apply the prescribed quantitites of the green manure. Tithonia was the more preferred manure spices by farmers.
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Claims 7
Claim · model-written summary
Tithonia manure at 5 t/ha gave high maize yield of 4–5 t/ha.
- Treatment
- Tithoniae0
- Outcome
- maize grain yieldse0
- Direction
- higheste0
- Value
- 4–5 t/hae0
- Comparator
- control plote1
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tithonia and lantana green manure gave the highest maize grain yields (4–5 t/ha) when applied at the rate of 5 t/ha”
e1“The control plot that was adopted in this experiment was a continously cropped plot which did not receive green manure.”
Claim · model-written summary
Lantana manure at 5 t/ha gave high maize yield of 4–5 t/ha.
- Treatment
- lantana green manuree0
- Outcome
- maize grain yieldse0
- Direction
- higheste0
- Value
- 4–5 t/hae0
- Comparator
- control plote1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tithonia and lantana green manure gave the highest maize grain yields (4–5 t/ha) when applied at the rate of 5 t/ha”
e1“The control plot that was adopted in this experiment was a continously cropped plot which did not receive green manure.”
Claim · model-written summary
Tithonia and lantana yield did not differ at 10 and 20 t/ha.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there were no yield differences between treatments with the two species when the rate of application of green manure was increased to 10 and 20 t/ha”
e1“response of maize grain yield to the application”
Claim · model-written summary
Tithonia manure had a more pronounced residual effect than phosphoric fertilizer.
- Treatment
- tithoniae0
- Outcome
- residual effecte0
- Direction
- more pronouncede0
- Comparator
- phosphoric fertiliserse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The residual effect from tithonia and lantana green manure was more pronounced than from treatments with phosphoric fertilisers.”
e1“response of maize grain yield to the application”
Claim · model-written summary
Lantana manure had a more pronounced residual effect than phosphoric fertilizer.
- Treatment
- lantana green manuree0
- Outcome
- residual effecte0
- Direction
- more pronouncede0
- Comparator
- phosphoric fertiliserse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The residual effect from tithonia and lantana green manure was more pronounced than from treatments with phosphoric fertilisers.”
e1“response of maize grain yield to the application”
Claim · model-written summary
Farmers achieved higher maize yields with tithonia than lantana manure.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Farmers realised comparatively higher maize grain yields from the application of tithonia green manure than from lantana although most them did not apply the prescribed quantitites of the green manure.”
Claim · model-written summary
Farmers preferred tithonia manure.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tithonia was the more preferred manure spices by farmers.”
e1“response of maize grain yield to the application”
The same questions in other papers
Tithonia · yield · Zea mays (maize)Results agree
5 papers in the same direction as this paper
- positive
- positive
- positive
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See all 6 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
- negative
- no effect
- negative
3,904 papers more in this group
See all 3,908 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.