Abstract
Many physical, biological and cultural management factors determine the crop-weed balance which in turn influences the crop and weed reproductive yields. Inter-cropping of pigeonpea (Cajanus cyan L. Millsp.) with sorghum (Sorghum vulgare Pers.) reduced weed growth to an extent of 50 to 75%. The competitive ability of intercropping was enhanced by high plant population pressure provided by the component species together. Within an intercrop system row arrangement patterns did not significantly influence the weed infestation. With the increase in the population pressure there was considerable decrease in weed dry matter weight. Weed growth in compact pigeonpea genotype (HY3A) was 37% higher than that observed in spreading type (ST1). Pearlmillct (Pennisetum typhoides S. and H.) and maize (Lea mays L.) showed high initial weed smother-ing ability followed by cowpea (Vigna sinensis Savi.) and groundnut (Archis hypogaea L.). Sorghum progressively increased its competitive ability with time. Hardy and tall weeds like Celosia argentea h., Acanthospermum hispidum DC, and Digitaria sanguinalis (L.) Scop. were predominant in groundnut system. Pigeonpea and castor (Ricinus communis L.) were poor competitors with weeds, A quantitative description of the effects of some biological factors like crop species, crop variety, plant population, crop geometry, relative proportions of the crops in the mixture and cropping pattern on the crop-weed balance indicated that these factors should be taken into account while evolving integrated weed management systems.
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Claims 16
Claim · model-written summary
Pigeonpea-sorghum intercropping reduced weed growth by 50 to 75%.
- Taxon
- pigeonpea
Cajanus cajane0 - Treatment
- Inter-cropping of pigeonpea (Cajanus cyan L. Millsp.) with sorghum (Sorghum vulgare Pers.)e0
- Interactor
- weede0weed
- Outcome
- weed growthe0
- Direction
- reducede0
- Value
- 50 to 75%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inter-cropping of pigeonpea (Cajanus cyan L. Millsp.) with sorghum (Sorghum vulgare Pers.) reduced weed growth to an extent of 50 to 75%.”
Claim · model-written summary
High combined plant population enhanced intercropping competitive ability.
Verbatim
e0“The competitive ability of intercropping was enhanced by high plant population pressure provided by the component species together.”
t0“crop-weed balance”
Claim · model-written summary
Row arrangement did not significantly influence weed infestation.
- Taxon
- cropt0
- Treatment
- row arrangement patternse0
- Interactor
- weede0weed
- Outcome
- weed infestatione0
- Direction
- did not significantly influencee0
Not reportedComparator
Verbatim
e0“Within an intercrop system row arrangement patterns did not significantly influence the weed infestation.”
t0“crop-weed balance”
Claim · model-written summary
Increasing plant population pressure decreased weed dry matter weight.
Verbatim
e0“With the increase in the population pressure there was considerable decrease in weed dry matter weight.”
t0“crop-weed balance”
Claim · model-written summary
Weed growth was 37% higher in compact pigeonpea HY3A than spreading ST1.
- Taxon
- pigeonpeaCajanus cajane0
- Material
- HY3Ae0
- Interactor
- Weede0weed
- Outcome
- Weed growthe0
- Direction
- highere0
- Value
- 37%e0
- Comparator
- ST1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Weed growth in compact pigeonpea genotype (HY3A) was 37% higher than that observed in spreading type (ST1).”
Claim · model-written summary
Pearlmillet showed high initial weed smothering ability.
Verbatim
e0“Pearlmillct (Pennisetum typhoides S. and H.) and maize (Lea mays L.) showed high initial weed smother-ing ability followed by cowpea (Vigna sinensis Savi.) and groundnut (Archis hypogaea L.).”
Claim · model-written summary
Maize showed high initial weed smothering ability.
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pearlmillct (Pennisetum typhoides S. and H.) and maize (Lea mays L.) showed high initial weed smother-ing ability followed by cowpea (Vigna sinensis Savi.) and groundnut (Archis hypogaea L.).”
Claim · model-written summary
Cowpea ranked after pearlmillet and maize for initial weed smothering.
- Taxon
- cowpea
Vigna unguiculatae0 - Interactor
- weede0weed
- Outcome
- weed smother-ing abilitye0
- Direction
- followed bye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pearlmillct (Pennisetum typhoides S. and H.) and maize (Lea mays L.) showed high initial weed smother-ing ability followed by cowpea (Vigna sinensis Savi.) and groundnut (Archis hypogaea L.).”
Claim · model-written summary
Groundnut ranked after pearlmillet and maize for initial weed smothering.
- Taxon
- groundnut
Arachis hypogaeae0 - Interactor
- weede0weed
- Outcome
- weed smother-ing abilitye0
- Direction
- followed bye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pearlmillct (Pennisetum typhoides S. and H.) and maize (Lea mays L.) showed high initial weed smother-ing ability followed by cowpea (Vigna sinensis Savi.) and groundnut (Archis hypogaea L.).”
Claim · model-written summary
Sorghum competitive ability increased over time.
SorghumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sorghum progressively increased its competitive ability with time.”
Claim · model-written summary
Celosia argentea was predominant in the groundnut system.
- Taxon
- groundnutArachis hypogaeae0
- Interactor
- Celosia argentea h.
_W_IMG_0985.jpg?width=60)
Celosia argenteae0weed - Outcome
- predominante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_W_IMG_0985.jpg?width=500)
Verbatim
e0“Hardy and tall weeds like Celosia argentea h., Acanthospermum hispidum DC, and Digitaria sanguinalis (L.) Scop. were predominant in groundnut system.”
Claim · model-written summary
Acanthospermum hispidum was predominant in the groundnut system.
- Taxon
- groundnutArachis hypogaeae0
- Interactor
- Acanthospermum hispidum DC
.jpg?width=60)
Acanthospermum hispidume0weed - Outcome
- predominante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Hardy and tall weeds like Celosia argentea h., Acanthospermum hispidum DC, and Digitaria sanguinalis (L.) Scop. were predominant in groundnut system.”
Claim · model-written summary
Digitaria sanguinalis was predominant in the groundnut system.
- Taxon
- groundnutArachis hypogaeae0
- Interactor
- Digitaria sanguinalis (L.) Scop.
.jpg?width=60)
Digitaria sanguinalise0weed - Outcome
- predominante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Hardy and tall weeds like Celosia argentea h., Acanthospermum hispidum DC, and Digitaria sanguinalis (L.) Scop. were predominant in groundnut system.”
Claim · model-written summary
Pigeonpea competed poorly with weeds.
- Taxon
- PigeonpeaCajanus cajane0
- Interactor
- weedse0weed
- Outcome
- poor competitorse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pigeonpea and castor (Ricinus communis L.) were poor competitors with weeds”
Claim · model-written summary
Castor competed poorly with weeds.
- Taxon
- castor
Ricinus communise0 - Interactor
- weedse0weed
- Outcome
- poor competitorse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pigeonpea and castor (Ricinus communis L.) were poor competitors with weeds”
Claim · model-written summary
The authors recommend considering biological cropping factors in integrated weed management.
Verbatim
e0“these factors should be taken into account while evolving integrated weed management systems.”
t0“crop-weed balance”
The same questions in other papers
intercropping · weed · Cajanus cajan (pigeon pea)Results agree
6 papers in the same direction as this paper
- positive
- positive
- positive
3 papers more in this group
See all 7 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.