Abstract
Recent advances in crop production have identified crop rotation with cover crops as a key component of sustainable crop production. However, the implementation of conservation agriculture (CA) systems involving crop rotations in Zimbabwe is still minimal partly due to the anticipated increases in weed pressure. On-station field experiments using nine cover crops as treatments and maize as the control were done to study the effect of different maize-cover crop rotations on weed infestations under CA. Rotations involving velvet bean (Mucuna pruriens) and red sunnhemp (Crotalaria ochroleuca) significantly (p < 0.05) reduced weed density and biomass across seasons at the first weed count. Black sunnhemp (Crotalaria juncea) supported the highest gallant soldier (Galinsoga parviflora) and wandering jew (Commelina bengalensis) densities. It was concluded that short-term maize–velvet bean and maize–red sunnhemp rotations can reduce early-season weed density.
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Claims 4
Claim · model-written summary
Velvet bean rotation significantly reduced early weed density and biomass.
- Treatment
- velvet bean (Mucuna pruriens)e0
- Interactor
- weede0weed
- Outcome
- weed density and biomasse0
- Direction
- reducede0
- Comparator
- maizet0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rotations involving velvet bean (Mucuna pruriens) and red sunnhemp (Crotalaria ochroleuca) significantly (p < 0.05) reduced weed density and biomass across seasons at the first weed count.”
t0“maize–cover crop rotations”
Claim · model-written summary
Red sunnhemp rotation significantly reduced early weed density and biomass.
- Treatment
- red sunnhemp (Crotalaria ochroleuca)e0
- Interactor
- weede0weed
- Outcome
- weed density and biomasse0
- Direction
- reducede0
- Comparator
- maizet0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rotations involving velvet bean (Mucuna pruriens) and red sunnhemp (Crotalaria ochroleuca) significantly (p < 0.05) reduced weed density and biomass across seasons at the first weed count.”
t0“maize–cover crop rotations”
Claim · model-written summary
Black sunnhemp supported the highest gallant soldier density.
- Treatment
- Black sunnhemp (Crotalaria juncea)e0
- Interactor
- gallant soldier (Galinsoga parviflora)
.jpg?width=60)
Galinsoga parviflorae0weed - Outcome
- gallant soldier (Galinsoga parviflora)e0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Black sunnhemp (Crotalaria juncea) supported the highest gallant soldier (Galinsoga parviflora) and wandering jew (Commelina bengalensis) densities.”
t0“maize–cover crop rotations”
Claim · model-written summary
Black sunnhemp supported the highest wandering jew density.
- Treatment
- Black sunnhemp (Crotalaria juncea)e0
- Interactor
- wandering jew (Commelina bengalensis)e0weed
- Outcome
- wandering jew (Commelina bengalensis) densitiese0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Black sunnhemp (Crotalaria juncea) supported the highest gallant soldier (Galinsoga parviflora) and wandering jew (Commelina bengalensis) densities.”
t0“maize–cover crop rotations”
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