Claim · model-written summary
The soil K critical level was 0.18 cmolc dm-3.
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorDirectionQualifier
Verbatim
e0“The critical levels of K were 0.18 cmolc dm-3 in the soil and 9.53 g kg-1 in the plant and were associated with low doses of K (< 25 kg ha-1 of K2O).”
t0“sugarcane”
Title
Salt effect of potassium fertilizer on productivity and technological quality of sugarcane
Igor Tenório Marinho da Rocha; Fernando José Freire; Emídio Cantídio Almeida de Oliveira; et al. Australian Journal of Crop Science 2019. doi:10.21475/ajcs.19.13.09.p1919
Other claims from this paper (9)
- Intervention effect K application increased soil and leaf K levels.
- Intervention effect K application increased productivity.
- Intervention effect K application increased sugar concentration.
- Observation Maximum agronomic efficiency occurred at 150 kg ha-1 K2O and 116 Mg ha-1 production.
- Intervention effect K doses above 200 kg ha-1 decreased productivity through soil salinity.
- Observation The plant K critical level was 9.53 g kg-1.
- Association Surface salinity at 1.38 dS m-1 reduced productivity.
- Association Subsurface salinity at 1.19 dS m-1 reduced productivity.
- Recommendation The authors suggest the critical levels and salinity limits for assessing sandy soil fertility.