Abstract
A study was conducted from 2014 to 2017 in Malawi to elucidate the short-term effects of maize-legume intercropping and rotation systems under conservation agriculture (CA) and conventional tillage (CT) on crop productivity and profitability. Twelve farmers hosted on-farm trials per district, in three districts, with each farmer having six plots. The design of the study was randomised complete block design arranged in a split plot fashion with tillage as main plot and cropping systems as sub-plots, with each farmer acting as a replicate. CA had 1400 and 3200 kg ha−1 more maize grain yield in the second and third seasons, respectively compared with CT. In the first two seasons, CT had 310, 180 and 270 kg ha−1 more cowpea, soybean and pigeon pea grain yields in Salima, Mzimba and Mangochi districts, respectively, compared with CA. Similarly, CA had 1100 and 950 kg ha−1 more groundnut grain yields than CT in Salima and Mzimba districts in the second and third seasons, respectively. Over the three-year study period, partial land equivalent ratio for maize ranged from 0.78 to 1.24. Largest net returns were achieved by intercropping maize with pigeon pea in Mangochi and rotating maize and groundnut in Mzimba and Salima districts.
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Claims 10
Claim · model-written summary
Conservation agriculture gave 1400 kg ha−1 more maize grain yield than conventional tillage in season two.
- Treatment
- CAe0
- Outcome
- maize grain yielde0
- Direction
- moree0
- Value
- 1400 and 3200 kg ha−1e0
- Qualifier
- second and third seasonse0
- Comparator
- CTe0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CA had 1400 and 3200 kg ha−1 more maize grain yield in the second and third seasons, respectively compared with CT”
t0“maize”
Claim · model-written summary
Conservation agriculture gave 3200 kg ha−1 more maize grain yield than conventional tillage in season three.
- Treatment
- CAe0
- Outcome
- maize grain yielde0
- Direction
- moree0
- Value
- 3200 kg ha−1e0
- Qualifier
- third seasonse0
- Comparator
- CTe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CA had 1400 and 3200 kg ha−1 more maize grain yield in the second and third seasons, respectively compared with CT”
t0“maize”
Claim · model-written summary
Conventional tillage produced more cowpea yield in Salima.
- Taxon
- cowpea
Vigna unguiculatae0 - Treatment
- CTe0
- Outcome
- cowpeae0
- Direction
- moree0
- Value
- 310, 180 and 270 kg ha−1e0
- Comparator
- CAe0
- Setting
- Salimae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CT had 310, 180 and 270 kg ha−1 more cowpea, soybean and pigeon pea grain yields in Salima, Mzimba and Mangochi districts, respectively, compared with CA”
Claim · model-written summary
Conventional tillage produced more soybean yield in Mzimba.
- Taxon
- soybean
Glycine maxe0 - Treatment
- CTe0
- Outcome
- soybeane0
- Direction
- moree0
- Value
- 180 and 270 kg ha−1e0
- Comparator
- CAe0
- Setting
- Mzimbae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CT had 310, 180 and 270 kg ha−1 more cowpea, soybean and pigeon pea grain yields in Salima, Mzimba and Mangochi districts, respectively, compared with CA”
Claim · model-written summary
Conventional tillage produced more pigeon pea yield in Mangochi.
- Taxon
- pigeon pea
Cajanus cajane0 - Treatment
- CTe0
- Outcome
- pigeon pea grain yieldse0
- Direction
- moree0
- Value
- 270 kg ha−1e0
- Comparator
- CAe0
- Setting
- Mangochie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CT had 310, 180 and 270 kg ha−1 more cowpea, soybean and pigeon pea grain yields in Salima, Mzimba and Mangochi districts, respectively, compared with CA”
Claim · model-written summary
Conservation agriculture increased groundnut grain yield in Salima.
- Taxon
- groundnut
Arachis hypogaeae0 - Treatment
- CAe0
- Outcome
- groundnut grain yieldse0
- Direction
- moree0
- Value
- 1100 and 950 kg ha−1e0
- Comparator
- CTe0
- Setting
- Salimae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CA had 1100 and 950 kg ha−1 more groundnut grain yields than CT in Salima and Mzimba districts in the second and third seasons, respectively”
Claim · model-written summary
Conservation agriculture increased groundnut grain yield in Mzimba.
- Taxon
- groundnutArachis hypogaeae0
- Treatment
- CAe0
- Outcome
- groundnut grain yieldse0
- Direction
- moree0
- Value
- 950 kg ha−1e0
- Comparator
- CTe0
- Setting
- Mzimbae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CA had 1100 and 950 kg ha−1 more groundnut grain yields than CT in Salima and Mzimba districts in the second and third seasons, respectively”
Claim · model-written summary
The maize partial land equivalent ratio ranged from 0.78 to 1.24.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“partial land equivalent ratio for maize ranged from 0.78 to 1.24”
Claim · model-written summary
Maize with pigeon pea intercropping achieved the largest net returns in Mangochi.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Largest net returns were achieved by intercropping maize with pigeon pea in Mangochi”
Claim · model-written summary
Maize and groundnut rotation achieved the largest net returns in Mzimba and Salima.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rotating maize and groundnut in Mzimba and Salima districts”
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See all 25 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.