Claim · model-written summary
The overall effect of Humifirst incorporated on dry matter yield was statistically significant.
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Verbatim
e0“The effect of humic substances on yield and nutrient uptake of grass, maize, potato and spinach was investigated”
e1“the application of humic substances had an overall positive effect on dry matter yield of the crops”
e2“this effect was statistically significant for Humifirst incorporated”
Title
Application of Humic Substances Results in Consistent Increases in Crop Yield and Nutrient Uptake
G. Verlinden; B. Pycke; J. Mertens; et al. Journal of Plant Nutrition 2009. doi:10.1080/01904160903092630
Other claims from this paper (9)
- Intervention effect Humic substances had an overall positive effect on dry matter yield of grass, maize, potato and spinach in the meta-analysis.
- Intervention effect In permanent grassland, humic substances mainly promoted production of the first grass cut.
- Intervention effect Tuber production on the potato field trial showed a high response to humic substances.
- Intervention effect Total potato yield increased with Humifirst liquid (13%).
- Intervention effect Total potato yield increased with Humifirst incorporated (17%).
- Intervention effect The effect of humic substances on maize yield was limited, probably due to the high nutrient status of both soils.
- Intervention effect Meta-analysis showed a consequent increase in nitrogen and phosphorus uptake of all studied crops.
- Intervention effect The effect of humic substances on potassium and magnesium uptake was mainly positive.
- Intervention effect Sodium and calcium uptake were not affected by humic substances in most experiments.