Claim · model-written summary
Populations grew more rapidly with the split-applied intermediate nitrogen treatment (56 + 84 kg N/ha) than with 56, 56 + 28, or 56 + 168 kg N/ha.
- Taxon
- potato
Solanum tuberosumt0 - Treatment
- split-applied intermediate N treatment (56 + 84 kg N/ha)e4
- Outcome
- Populations grewe4
- Direction
- more rapidlye4
- Comparator
- 56, 56 + 28, or 56 + 168 kg N/hae4
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato Insects”
e4“Populations grew more rapidly on potatoes fertilized with a split-applied intermediate N treatment (56 + 84 kg N/ha) than on potatoes fertilized with 56, 56 + 28, or 56 + 168 kg N/ha”
Title
R. K. Jansson; Z. Smilowitz Environmental Entomology 1986. doi:10.1093/ee/15.1.49
Other claims from this paper (11)
- Intervention effect Abundance of the green peach aphid was not significantly different among nitrogen treatments.
- Association Aphid population growth rate increased with the level of nitrogen applied.
- Intervention effect The highest nitrogen level (224 kg N/ha) reduced the rate of population growth.
- Intervention effect Aphid populations grew more rapidly with 224 kg N/ha in one application than in two applications.
- Association GPA were more abundant on the lower leaves in each treatment.
- Observation The within-plant distribution of the green peach aphid was similar for all treatments.
- Association Population growth rates were greater on lower leaves than on other leaves in most nitrogen treatments.
- Association Population growth rates were negatively correlated with foliar free amino acids within leaves of different vertical zones.
- Association Population growth rates were positively correlated with foliar nitrate N within leaves of different vertical zones.
- Association Population growth rates were positively correlated with the percentage of the total organic N pool composed of amino N.
- Association The rate of population growth was positively correlated with free amino acids in leaves.