Abstract
The effects of cassava/legume intercrop-rice relay and weed management practices on weed infestation, growth and yield of rice were investigated at Badeggi, Southern Guinea Savanna of Nigeria in 2011 to 2013 cropping seasons. The treatments consisted of factorial combination of cassava (IIT 427) intercrop with: Mucuna or Velvet bean [Mucuna pruriens (L.) DC.], Cowpea [Vigna unguiculata (L.) Walp.], Soybean [Glycine max (L.) Merr.], Hyacinth bean [Lablab purpureus (L.) Sweet.] and Porcupine Jointvetch (Aeschynomene histrix Poir.) and weed management practices: (i) application of propanil at 1.44 kg a.i ha-1 plus 2,4-D at 0.80 kg a.i ha-1 (Orizo Plus®) at the rate of 2.24 kg a.i ha-1 at three weeks after transplanting (WAT) rice followed by hoeing at 6 WAT, (ii) two hoeing at 3 and 6 WAT, (iii) one hoeing at 3 WAT, and (iv) weedy check with sole cassava and natural fallow as control laid in a split plot arranged in a randomized complete block with three replications. Across cassava/legumes intercrops, cassava/mucuna had lower weed density and dry matter, cassava/Aeschynomene and cassava/cowpea produced comparable taller rice plants, more rice panicles and paddy yield, and cassava/Aeschynomene produced greater number of rice tillers. Irrespective of the weed management practices, two hoeing at 3 and 6 WAT gave better weed control, taller rice plants, greater number of tillers and panicles, and higher paddy yield comparable to application of Orizo Plus® at 3 WAT followed by one hoeing at 6 WAT. This study suggests that sustainable weed control with Mucuna intercrop and rice productivity with Aeschynomene and cowpea intercrops can be achieved with two hoeing at 3 and 6 WAT or application of Orizo Plus® at 3 WAT followed by hoeing at 6 WAT in this agro-ecology of Nigeria. Key words: Intercrops, legumes, Oryza sativa L., paddy yield, weed suppression.
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Claims 6
Claim · model-written summary
Cassava/mucuna intercrop reduced weed density and dry matter.
- Taxon
- rice
Oryza sativat0 - Treatment
- cassava/mucunae0
- Interactor
- weede0weed
- Outcome
- weed density and dry mattere0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cassava/mucuna had lower weed density and dry matter”
t0“yield of low land rice”
Claim · model-written summary
Cassava/Aeschynomene intercrop produced taller rice plants, more panicles and higher paddy yield.
- Taxon
- riceOryza sativae0
- Treatment
- cassava/Aeschynomenee0
- Outcome
- taller rice plants, more rice panicles and paddy yielde0
- Direction
- tallere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cassava/Aeschynomene and cassava/cowpea produced comparable taller rice plants, more rice panicles and paddy yield”
Claim · model-written summary
Cassava/cowpea intercrop produced comparable taller rice plants, more panicles and paddy yield.
- Taxon
- riceOryza sativae0
- Treatment
- cassava/cowpeae0
- Outcome
- taller rice plants, more rice panicles and paddy yielde0
- Direction
- tallere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cassava/Aeschynomene and cassava/cowpea produced comparable taller rice plants, more rice panicles and paddy yield”
Claim · model-written summary
Cassava/Aeschynomene produced more rice tillers.
- Taxon
- riceOryza sativae0
- Treatment
- cassava/Aeschynomenee0
- Outcome
- number of rice tillerse0
- Direction
- greatere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cassava/Aeschynomene produced greater number of rice tillers”
Claim · model-written summary
Two hoeings improved weed control, rice stature, tillers, panicles and yield comparably to herbicide plus hoeing.
- Taxon
- riceOryza sativae0
- Treatment
- two hoeing at 3 and 6 WATe0
- Interactor
- weede0weed
- Outcome
- weed control, taller rice plants, greater number of tillers and panicles, and higher paddy yielde0
- Direction
- bettere0
- Comparator
- application of Orizo Plus® at 3 WAT followed by one hoeing at 6 WATe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two hoeing at 3 and 6 WAT gave better weed control, taller rice plants, greater number of tillers and panicles, and higher paddy yield comparable to application of Orizo Plus® at 3 WAT followed by one hoeing at 6 WAT.”
Claim · model-written summary
The authors recommend mucuna for weed control and Aeschynomene or cowpea for rice productivity with two hoeings or herbicide plus hoeing.
- Taxon
- riceOryza sativae0
- Outcome
- sustainable weed control with Mucuna intercrop and rice productivity with Aeschynomene and cowpea intercropse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sustainable weed control with Mucuna intercrop and rice productivity with Aeschynomene and cowpea intercrops can be achieved with two hoeing at 3 and 6 WAT or application of Orizo Plus® at 3 WAT followed by hoeing at 6 WAT”
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