Claim · model-written summary
Reduced tillage with combined amendments gave the highest fresh carrot root yield.
- Taxon
- carrot
Daucus carotat0 - Treatment
- Reduced tillage in combination with NPK fertilizer, biochar and poultry manuree0
- Outcome
- fresh carrot root yielde0
- Direction
- higheste0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“carrot (Daucus carota L.)”
e0“Reduced tillage in combination with NPK fertilizer, biochar and poultry manure gave the highest fresh carrot root yield.”
Title
Taiwo Michael Agbede Heliyon 2021. doi:10.1016/j.heliyon.2021.e07391
Other claims from this paper (19)
- Intervention effect Reduced tillage increased the reported measure by 11.1% in each of two years relative to conventional tillage, but the endpoint is missing from the supplied abstract.
- Intervention effect Biochar alone improved soil physical properties and water content.
- Intervention effect Poultry manure alone decreased soil bulk density, penetration resistance, dispersion ratio and temperature.
- Intervention effect Combined NPK fertilizer, biochar and poultry manure decreased soil bulk density, penetration resistance, dispersion ratio and temperature.
- Intervention effect Biochar alone increased soil water content, porosity, aggregate stability and mean weight diameter.
- Intervention effect Poultry manure alone increased soil water content, porosity, aggregate stability and mean weight diameter.
- Intervention effect Combined NPK fertilizer, biochar and poultry manure increased soil water content, porosity, aggregate stability and mean weight diameter.
- Intervention effect NPK fertilizer did not improve the soil physical properties.
- Intervention effect Biochar alone increased soil N, P, K, Ca and Mg compared with control.
- Intervention effect Poultry manure alone increased soil N, P, K, Ca and Mg compared with control.
- Intervention effect NPK fertilizer alone increased soil N, P, K, Ca and Mg compared with control.
- Intervention effect Combined NPK fertilizer, biochar and poultry manure increased soil N, P, K, Ca and Mg compared with control.
- Intervention effect Biochar improved soil pH, OC, K, Ca and Mg more than NPK fertilizer.
- Intervention effect Poultry manure improved soil pH, OC, N, K, Ca and Mg more than NPK fertilizer.
- Intervention effect Combined amendments at suboptimal rates increased soil nutrient concentrations, growth traits and carrot yield relative to individual amendments.
- Intervention effect NPK fertilizer alone increased fresh carrot root yield by 43% relative to control.
- Intervention effect Biochar alone increased fresh carrot root yield by 24% relative to control.
- Intervention effect Poultry manure alone increased fresh carrot root yield by 46% relative to control.
- Intervention effect Combined NPK fertilizer, biochar and poultry manure increased fresh carrot root yield by 76% relative to control.