Abstract
Maize production in Malawi is limited by high costs and sub-optimal use of chemical fertilizers under continuous cultivation. A long-term gliricidia/maize trial was undertaken on a Ferric Lixisol from 1991/92 to 2001/02. The purpose of the study was to assess the performance of a gliricidia/maize intercropping system as a low-input soil fertility replenishment option in southern Malawi. The experiment was a 2 × 3 × 3 factorial design with three replications. Treatments included two maize cropping systems (with and without gliricidia trees), and three rates of inorganic N fertilizer (0, 24 and 48 N kg ha −1 representing 0, 25 and 50% of the national recommended N rate), and three rates of P fertilizer application (0, 20 and 40 P ha −1 representing 0, 50 and 100% of the recommended rate). No effect of P was detected on yield early in the trial, and this treatment was discontinued. The gliricidia pruning biomass did not decline after 10 years of intensive pruning, with strong correlation between tree biomass production and years after establishment ( r = 0.91, p < 0.001). Application of gliricidia prunings increased maize yields by three times compared to the yield of unfertilized sole maize. Maize yield from the unfertilized gliricidia pruning treatment was superior to the yield from sole maize supplemented with a quarter or half the recommended N rate. The study confirmed that a gliricidia/maize intercropping system is a promising soil fertility replenishment option in southern Malawi and elsewhere in southern Africa.
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 6
Claim · model-written summary
Application of gliricidia prunings increased maize yield by three times compared with unfertilized sole maize.
- Treatment
- Application of gliricidia pruningse1
- Outcome
- maize yieldse1
- Direction
- increasede1
- Value
- three timese1
- Comparator
- unfertilized sole maizee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Application of gliricidia prunings increased maize yields by three times compared to the yield of unfertilized sole maize”
Claim · model-written summary
Maize yield from unfertilized gliricidia pruning treatment was superior to sole maize with a quarter or half the recommended N rate.
- Treatment
- unfertilized gliricidia pruning treatmente2
- Outcome
- Maize yielde2
- Direction
- superiore2
- Comparator
- sole maize supplemented with a quarter or half the recommended N ratee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Maize yield from the unfertilized gliricidia pruning treatment was superior to the yield from sole maize supplemented with a quarter or half the recommended N rate”
Claim · model-written summary
Gliricidia pruning biomass did not decline after 10 years of intensive pruning.
- Taxon
- gliricidia
Gliricidiae1 - Outcome
- gliricidia pruning biomasse1
- Direction
- did not declinee1
- Qualifier
- after 10 years of intensive pruninge1
- Setting
- SOUTHERN MALAWIt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SUSTAINABLE MAIZE PRODUCTION USING GLIRICIDIA/MAIZE INTERCROPPING IN SOUTHERN MALAWI”
e1“The gliricidia pruning biomass did not decline after 10 years of intensive pruning”
Claim · model-written summary
Tree biomass production was strongly correlated with years after establishment (r = 0.91, p < 0.001).
- Taxon
- gliricidiaGliricidiae1
- Outcome
- tree biomass productione2
- Value
- r = 0.91, p < 0.001e2
- Qualifier
- strong correlatione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The gliricidia pruning biomass did not decline after 10 years of intensive pruning”
e2“with strong correlation between tree biomass production and years after establishment ( r = 0.91, p < 0.001)”
Claim · model-written summary
The study indicates that gliricidia/maize intercropping is a promising soil fertility replenishment option in southern Malawi and southern Africa.
- Taxon
- gliricidia/maize
Zea maysGliricidiae4 - Outcome
- soil fertility replenishment optione4
- Setting
- southern Malawie4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SUSTAINABLE MAIZE PRODUCTION USING GLIRICIDIA/MAIZE INTERCROPPING IN SOUTHERN MALAWI”
e4“The study confirmed that a gliricidia/maize intercropping system is a promising soil fertility replenishment option in southern Malawi and elsewhere in southern Africa”
Claim · model-written summary
No effect of P fertilizer on maize yield was detected early in the trial.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SUSTAINABLE MAIZE PRODUCTION USING GLIRICIDIA/MAIZE INTERCROPPING IN SOUTHERN MALAWI”
e5“No effect of P was detected on yield early in the trial”
The same questions in other papers
pruning · yield · Zea mays (maize)Positive and negative results
85 papers in the same direction as this paper · 86 in the opposite direction · 2 reporting no difference from an alternative
- positive
- positive
- positive
170 papers more in this group
See all 174 papers →phosphorus · yield · Zea mays (maize)Positive and negative results
77 papers in the same direction as this paper · 549 in the opposite direction
- positive
- positive
- positive
623 papers more in this group
See all 627 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.