Claim · model-written summary
Atrazine 1.5 kg/ha increased maize grain yield by 75.2 over the unweeded check.
- Treatment
- atrazine 1.5 kg/hae0
- Outcome
- grain yielde1
- Direction
- increasee1
- Value
- 75.2e1
- Comparator
- unweeded checke1
Zea maysNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Effective control of weeds with atrazine 1.5 kg/ha and acetachlor 1.25 kg/ha delayed the emergence and appearance of different phenophases of weeds than the crop”
e1“resulting in 75.2 and 71.7 percent average increase in grain yield of maize, respectively over unweeded check”
Title
Pankaj Chopra; N. N. Angiras; Suresh Kumar; et al. Journal of Ecophysiology and Occupational Health 2013. doi:10.18311/jeoh/2013/1714
Other claims from this paper (14)
- Observation Grass weeds and the sedge Cyperus iria, irrespective of treatment, emerged 4-8 days earlier than the maize crop, Digitaria sanguinalis, Echinochloa colona and Panicum dichotomiflorum being the grass group.
- Observation The sedge Cyperus iria emerged 4-8 days earlier than the maize crop.
- Observation Commelina benghalensis emerged and senesced almost along with the maize crop.
- Observation All other weeds flowered at the tasseling stage of the maize crop.
- Observation Echinochloa colona and Panicum dichotomiflorum flowered 7-8 days earlier than the tasseling stage of maize.
- Observation Senescence of almost all weeds except Commelina benghalensis occurred 15-25 days earlier than the maize crop.
- Intervention effect Zero tillage significantly advanced crop emergence by 4-5 days compared with other tillage methods.
- Intervention effect Emergence of grass weeds was not significantly affected by zero tillage relative to other tillage methods.
- Intervention effect Appearance of all phenophases of the crop and associated weeds was initiated earlier in zero till plots than in raised seed bed and conventional tilled plots.
- Intervention effect Zero till plots reduced maize grain yield by 13.7 compared with raised seed bed.
- Intervention effect Zero till plots reduced maize grain yield by 16.9 compared with conventional tillage.
- Intervention effect Atrazine 1.5 kg/ha delayed the emergence and appearance of weed phenophases relative to the crop.
- Intervention effect Acetachlor 1.25 kg/ha delayed the emergence and appearance of weed phenophases relative to the crop.
- Intervention effect Acetachlor 1.25 kg/ha increased maize grain yield by 71.7 over the unweeded check.