Nitrogen use efficiency in Tonga
Tonga: Nitrogen use efficiency was 37.2% in 2014. ◆ Volatile
Nitrogen use efficiency in Tonga, 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 Tonga is 37.2%, measured in 2014.
That represents a change of up 197.8% on the previous year and up 130.2% over ten years.
Over the whole period, nitrogen use efficiency in Tonga peaked at 127.2% in 1961 and was at its lowest, 6.1%, in 2003.
That places Tonga 123rd out of 204 countries with data for 2014, putting it in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 102.1% | 88.3% | 127.2% | 9 |
| 1970s | 78.5% | 45.5% | 108.6% | 10 |
| 1980s | 35.4% | 24.3% | 51.8% | 10 |
| 1990s | 28.4% | 25.7% | 31.7% | 10 |
| 2000s | 25.2% | 6.1% | 49.0% | 10 |
| 2010s | 20.9% | 11.9% | 37.2% | 5 |
Countries ranked near Tonga
More reference data data for Tonga
- Universal right to vote in practice 2 (2025)
- Consumer price index 174.32 2010 = 100 (2025)
- Universal right to vote 2 (2025)
- Competitive elections 1 (2025)
- Men's universal right to vote 1 (2025)
- Elected parliament 1 (2025)
- Chief executive of the government is elected 1 (2025)
- Democracy 7 (2025)
- Civil liberties rating 2 (2025)
- Free country 2 (2025)
Frequently asked questions
- What is nitrogen use efficiency in Tonga?
- Nitrogen use efficiency in Tonga was 37.2% in 2014, according to Lassaletta et al. (2014) – processed by Our World in Data.
- What is the highest nitrogen use efficiency recorded in Tonga?
- The highest recorded value was 127.2% in 1961.
- What is the lowest nitrogen use efficiency recorded in Tonga?
- The lowest recorded value was 6.1% in 2003.
- How does Tonga rank for nitrogen use efficiency?
- Tonga ranks 123rd out of 204 countries with data for 2014.
- Is nitrogen use efficiency rising or falling in Tonga?
- Over the last ten years it is up 130.2%. The long-run trend across the full record is volatile.
- Where does this Tonga 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.