Nitrogen use efficiency in Sierra Leone
Sierra Leone: Nitrogen use efficiency was 78.9% in 2014. ▼ Falling
Nitrogen use efficiency in Sierra Leone, 1961–2014
Source: Lassaletta et al. (2014) – processed by Our World in Data. Measured in %.
Analysis
The most recent figure for nitrogen use efficiency in Sierra Leone is 78.9%, measured in 2014.
The figure is up 25.1% on the previous year and up 51.2% over ten years.
Over the whole period, nitrogen use efficiency in Sierra Leone peaked at 79.8% in 1964 and was at its lowest, 49.6%, in 2005.
Sierra Leone ranks 45th of 204 countries on this measure, in the top quarter.
The long-run direction has been consistently falling across the 54 years of available data.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 73.9% | 67.3% | 79.8% | 9 |
| 1970s | 65.0% | 58.4% | 67.6% | 10 |
| 1980s | 62.5% | 58.3% | 71.4% | 10 |
| 1990s | 58.5% | 56.2% | 61.6% | 10 |
| 2000s | 54.9% | 49.6% | 62.6% | 10 |
| 2010s | 65.8% | 59.5% | 78.9% | 5 |
Countries ranked near Sierra Leone
More reference data data for Sierra Leone
- Spring temperature anomalies 0.1247 °C (2026)
- Summer temperature anomalies 0.8874 °C (2026)
- Temperature anomalies by month 0.2824 °C (2026)
- Universal right to vote in practice 2 (2025)
- Autumn temperature anomalies 0.1314 °C (2025)
- Winter temperature anomalies 0.1178 °C (2025)
- Consumer price index 771.75 2010 = 100 (2025)
- Universal right to vote 2 (2025)
- Competitive elections 0 (2025)
- Men's universal right to vote 1 (2025)
Frequently asked questions
- What is nitrogen use efficiency in Sierra Leone?
- Nitrogen use efficiency in Sierra Leone was 78.9% in 2014, according to Lassaletta et al. (2014) – processed by Our World in Data.
- What is the highest nitrogen use efficiency recorded in Sierra Leone?
- The highest recorded value was 79.8% in 1964.
- What is the lowest nitrogen use efficiency recorded in Sierra Leone?
- The lowest recorded value was 49.6% in 2005.
- How does Sierra Leone rank for nitrogen use efficiency?
- Sierra Leone ranks 45th out of 204 countries with data for 2014.
- Is nitrogen use efficiency rising or falling in Sierra Leone?
- Over the last ten years it is up 51.2%. The long-run trend across the full record is falling.
- Where does this Sierra Leone data come from?
- The figures come from Lassaletta et al. (2014) – processed by Our World in Data, published as part of Nitrogen use efficiency. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 54 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Nitrogen use efficiency (NUE) is the ratio between nitrogen inputs and output. A NUE of 40% means that only 40% of nitrogen inputs are converted into nitrogen in the form of crops.