Claim · model-written summary
Average maize yield in the recommended K rate treatment (Krec) was highest and 32.1% higher than with no K fertilization (K0).
- Treatment
- Krec treatment (the recommended K rate)e0
- Outcome
- yielde0
- Direction
- highere0
- Value
- 32.1%e0
- Comparator
- K0 treatment (no K fertilization)e0
Zea maysNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the average maize yield in Krec treatment (the recommended K rate) was highest and was 32.1% higher than that in K0 treatment (no K fertilization)”
Title
Wenting Jiang; Xiaohu Liu; Ying Wang; et al. Sustainability 2018. doi:10.3390/su10072267
Other claims from this paper (11)
- Intervention effect K application did not significantly increase grain K concentration compared with K0.
- Intervention effect K application significantly increased K concentration in the straw compared with K0.
- Intervention effect Plant K uptake in K150 (150% of the recommended K rate) was higher than in Krec.
- Intervention effect Grain yield in K150 was lower than in Krec.
- Mechanism The authors conclude that luxury K absorption occurred in the K150 treatment because of excessive K application.
- Observation The average economic optimum K rate was 135.24 kg K2O/ha at the low level of soil indigenous K supply.
- Observation The average economic optimum K rate was 124.27 kg K2O/ha at the medium level of soil indigenous K supply.
- Observation The average economic optimum K rate was 96.54 kg K2O/ha at the high level of soil indigenous K supply.
- Observation The average economic optimum yield at a high soil indigenous K supply was similar to the average yield in the Krec treatment.
- Intervention effect The economic optimum K rate could reduce the K rate by 37.9-63.7 kg K2O/ha compared with Krec.
- Recommendation The authors recommend that the K application rate should be further optimized.