Claim · model-written summary
HA did not increase tomato macro- or micronutrient uptake in either year.
- Taxon
- processing tomatoe1
- Treatment
- HAe0
- Outcome
- macro- or micronutrient uptakee0
- Direction
- In neither year wase0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Verbatim
e0“In neither year was macro- or micronutrient uptake increased with HA”
e1“processing tomato ( Lycopersicon esculentum Mill.)”
Title
Humic Substances Generally Ineffective in Improving Vegetable Crop Nutrient Uptake or Productivity
Timothy K. Hartz; Thomas G. Bottoms HortScience 2010. doi:10.21273/hortsci.45.6.906
Other claims from this paper (9)
- Intervention effect Fertilizer plus HA stimulated microbial respiration in lower organic matter soil after seven days.
- Intervention effect Fertilizer plus HA stimulated detected phospholipid fatty acids in lower organic matter soil.
- Intervention effect These stimulatory effects were absent in higher organic matter soil.
- Intervention effect HA did not significantly affect romaine lettuce emergence rate or percentage.
- Intervention effect HA did not significantly affect romaine lettuce P uptake.
- Intervention effect HA increased lettuce dry mass in one soil.
- Intervention effect HA had no significant effect on tomato dry mass accumulation.
- Intervention effect HA had no significant effect on tomato fruit yield.
- Recommendation Typical commercial HA application is unlikely to significantly improve vegetable nutrient uptake or productivity.