Claim · model-written summary
Fertilizer application gave a better soil coverage
- Taxon
- cassava
Manihot esculentae1 - Treatment
- Fertilizer applicatione2
- Outcome
- soil coveragee2
- Direction
- bettere2
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“quantify yield responses of cassava to mineral fertilizer in Kenya and Uganda”
e2“Fertilizer application promoted plant growth and resulted in a better soil coverage and reduced weed competition”
Title
Towards understanding factors that govern fertilizer response in cassava: lessons from East Africa
Anneke M. Fermont; Pablo A. Tittonell; Yona Baguma; et al. Nutrient Cycling in Agroecosystems 2009. doi:10.1007/s10705-009-9278-3
Other claims from this paper (19)
- Observation Unfertilized cassava yields ranged from 4.2 to 25.7 t/ha between sites and years
- Intervention effect Mineral fertilizer significantly increased cassava yields relative to unfertilized plots
- Observation Response to fertilizer in cassava was highly variable, ranging from -0.2 to 15.3 t/ha
- Observation Cassava yield response per kg applied N was 37 kg fresh yield in 2004
- Observation Cassava yield response per kg applied N was 106 kg fresh yield in 2005
- Observation Cassava yield response per kg applied P was 168 kg fresh yield in 2004
- Observation Cassava yield response per kg applied P was 482 kg fresh yield in 2005
- Observation Cassava yield response per kg applied K was 45 kg fresh yield in 2004
- Observation Cassava yield response per kg applied K was 128 kg fresh yield in 2005
- Association Fertilizer response was governed by soil fertility, rainfall and weed management
- Association Fertilizer response was not influenced by variety, pest and disease pressure, or harvest age
- Association Relative N and K yields were positively correlated with soil organic carbon and exchangeable K
- Association Response to fertilizer decreased on more fertile soils
- Observation On soils with low SOC (<10 g/kg), cassava fertilizer responses ranged from -8.6 to 24.4 t/ha
- Association Response to fertilizer was reduced when total rainfall was below 1,500 mm
- Association Response to fertilizer was reduced when rainfall from 0 to 3 months after planting was below 400 mm
- Association Fertilizer application promoted cassava plant growth
- Association Fertilizer application reduced weed competition in cassava
- Association Yields in fertilized fields were independent of weed management unless growing conditions were unfavourable