Abstract
Abstract Nowadays, herbicides are 60% of volume pesticides used worldwide. The large-scale agricultural production systems mostly depend on artificial chemicals to manage weeds. One strategy to reduce the herbicide use without reducing productivity is integrated weed control. Cover crop (CC) is one way of integrated weed control by suppressing the emergence of weeds. This study aims to examine the shifting in weed diversity and dominance in several weed management and soil tillages techniques in maize plantation. This study used a Randomized Block Design with 2 factorials. The first factor was weed management techniques (P), with levels: no control (P0), cover crop (P1), pre-emergent herbicide (P2), post-emergent herbicide (P3), and weed-free (with weeding) (P4). And the second factor was soil tillage technique (T), namely: no tillage (T0) and conventional tillage (T1). Vegetation analysis was conducted to the relative density (RD), relative frequency (RF), and summed dominance ratio (SDR). The results showed that there was a decrease in the number of weed species from 25 species before treatments to 21 species after treatments. The most effective reduction in the number of species and weed density occurred in the treatment of using pre-emergent herbicides with a combination of tillage techniques.
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Claims 2
Claim · model-written summary
Weed species number fell from 25 before treatment to 21 afterward in maize.
- Interactor
- weed speciese0weed
- Outcome
- number of weed speciese0
- Direction
- decreasee0
- Value
- 21 speciese0
- Qualifier
- 25 species before treatmentse0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize plantation”
e0“there was a decrease in the number of weed species from 25 species before treatments to 21 species after treatments”
Claim · model-written summary
Pre-emergent herbicide with tillage most effectively reduced weed species number and density.
- Treatment
- pre-emergent herbicides with a combination of tillage techniquese0
- Interactor
- weede2weed
- Outcome
- number of species and weed densitye0
- Direction
- reductione0
- Comparator
- no controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize plantation”
e0“The most effective reduction in the number of species and weed density occurred in the treatment of using pre-emergent herbicides with a combination of tillage techniques”
e1“no control (P0), cover crop (P1), pre-emergent herbicide (P2), post-emergent herbicide (P3), and weed-free (with weeding) (P4)”
e2“weed density”
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See all 406 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.