Claim · model-written summary
Twice hand weeding gave seed yield comparable to pre-emergence imazethapyr plus imazamox at 70 g/ha.
- Treatment
- Hand weeding twicee0
- Outcome
- seed yielde0
- Direction
- comparablee0
- Comparator
- pre-emergence imazethapyr + imazamox 70 g/hae0
Not reportedTaxonMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Verbatim
e0“Hand weeding twice and pre-emergence imazethapyr + pendimethalin 1000 g/ha were comparable to pre-emergence imazethapyr + imazamox 70 g/ha for seed yield”
Title
Impact of imazethapyr and its ready-mix combination with imazamoxto control weeds in blackgram
S.S. Rana; Gurdeep Singh; M.C. Rana; et al. Indian Journal of Weed Science 2019. doi:10.5958/0974-8164.2019.00033.9
Other claims from this paper (18)
- Intervention effect Twice hand weeding gave the highest weed control efficiency.
- Observation Pre-emergence imazethapyr plus imazamox at 80 g/ha ranked next for weed control efficiency.
- Observation Pre-emergence imazethapyr plus imazamox at 70 g/ha followed the 80 g/ha rate for weed control efficiency.
- Observation Pre-emergence imazethapyr plus pendimethalin at 1000 g/ha followed for weed control efficiency.
- Intervention effect Pre-emergence imazethapyr plus pendimethalin at 1000 g/ha gave comparable seed yield to imazethapyr plus imazamox at 70 g/ha.
- Association Each additional weed per square metre was associated with 2.1 kg/ha less blackgram seed yield.
- Association Each g/m2 increase in weed weight was associated with 5.1 kg/ha less blackgram yield.
- Observation Weed number economic thresholds ranged from 8.3 to 42.0/m2.
- Observation Weed weight economic thresholds ranged from 3.5 to 17.6 g/m2.
- Intervention effect Twice hand weeding gave the lowest weed persistence index.
- Intervention effect Twice hand weeding gave the highest crop resistance index.
- Intervention effect Post-emergence imazethapyr at 70 and 80 g/ha caused mild crop toxicity in 2014.
- Intervention effect Post-emergence imazethapyr plus imazamox at 70 and 80 g/ha caused mild crop toxicity in 2014.
- Observation The post-emergence treatments had lower crop resistance index.
- Intervention effect Twice hand weeding gave the highest efficiency index.
- Association Weeds reduced blackgram yield by 55.4%.
- Observation Several pre-emergence herbicides had higher overall impact index than hand weeding because of lower cost.
- Observation No residual phytotoxicity appeared in succeeding mustard crops in 2014 or 2015.