Claim · model-written summary
Appropriate herbicides raised yield over controls by 0·4 to 82·2%, averaging 23·8%.
- Taxon
- spring cerealst0
- Treatment
- most appropriate herbicidal treatmentse0
- Outcome
- yielde0
- Direction
- gainse0
- Value
- 0·4 to 82·2%e0
- Comparator
- controlse0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier
Verbatim
e0“the most appropriate herbicidal treatments have resulted in gains in yield over the controls ranging from 0·4 to 82·2% with a mean of 23·8”
t0“spring cereals”
Title
Studies in selective weed control II. The control of annual weeds in spring cereals
G. E. Blackman; H. A. Roberts The Journal of Agricultural Science 1950. doi:10.1017/s0021859600045524
Other claims from this paper (16)
- Intervention effect Cupric chloride was more toxic than cupric nitrate against Raphanus.
- Intervention effect Cupric nitrate was more toxic than cupric sulphate against Raphanus.
- Intervention effect Dinitro-o-cresol or its ammonium salt controlled R. raphanistrum better than sodium salt.
- Intervention effect Dinitro-o-cresol or its ammonium salt controlled Galeopsis better than sodium salt.
- Intervention effect Sodium methyl-chloro-phenoxyacetate was slightly superior for Galeopsis control.
- Intervention effect Sodium methyl-chloro-phenoxyacetate was slightly superior for Sinapis control.
- Observation For young seedlings the four herbicide groups performed similarly against listed weeds.
- Intervention effect Sulphuric acid best controlled P. persicaria within tested concentration limits.
- Intervention effect Dinitro-o-cresol best controlled Atriplex patula within tested limits.
- Association Toxic herbicide effects generally decreased with weed age.
- Observation Cupric chloride effectiveness against Sinapis changed little from cotyledon to flowering.
- Observation Sodium methyl-chloro-phenoxyacetate effectiveness declined markedly at flowering.
- Observation Growth regulating substances were most toxic to Raphanus at intermediate development.
- Observation Sulphuric acid and cupric chloride were less selective for crop yield than the alternatives.
- Observation Crop injury was greatest at higher herbicide concentrations and after tillering.
- Observation Phenoxyacetic compounds were most selective at 0·2% or less.