Nutrient balance — Cropland nitrogen use efficiency in Tonga
Tonga: Nutrient balance — Cropland nitrogen use efficiency was 135.24 % in 2023. ◆ Volatile
Nutrient balance — Cropland nitrogen use efficiency in Tonga, 1961–2023
Source: Food and Agriculture Organization of the United Nations. Measured in %.
Analysis
The most recent figure for nutrient balance — cropland nitrogen use efficiency in Tonga is 135.24 %, measured in 2023.
The figure is up 0.5% on the previous year and down 42.3% over ten years.
Over the whole period, nutrient balance — cropland nitrogen use efficiency in Tonga peaked at 665.76 % in 1961 and was at its lowest, 69.65 %, in 1988.
Tonga ranks 9th of 186 countries on this measure, in the top 10%.
The series is highly variable year to year, so single readings are best treated with caution.
Nutrient balance — Cropland nitrogen use efficiency in Tonga, year by year
| Year | % | Change |
|---|---|---|
| 1961 | 665.76 % | — |
| 1962 | 413 % | -38.0% |
| 1963 | 472.48 % | +14.4% |
| 1964 | 432.44 % | -8.5% |
| 1965 | 402.08 % | -7.0% |
| 1966 | 417.04 % | +3.7% |
| 1967 | 440.12 % | +5.5% |
| 1968 | 355.34 % | -19.3% |
| 1969 | 424.52 % | +19.5% |
| 1970 | 325.36 % | -23.4% |
| 1971 | 367.99 % | +13.1% |
| 1972 | 463.09 % | +25.8% |
| 1973 | 355.36 % | -23.3% |
| 1974 | 370.7 % | +4.3% |
| 1975 | 391.24 % | +5.5% |
| 1976 | 307.13 % | -21.5% |
| 1977 | 257.33 % | -16.2% |
| 1978 | 166.03 % | -35.5% |
| 1979 | 164.68 % | -0.8% |
| 1980 | 207.93 % | +26.3% |
| 1981 | 171.44 % | -17.6% |
| 1982 | 112.16 % | -34.6% |
| 1983 | 128.25 % | +14.3% |
| 1984 | 153.38 % | +19.6% |
| 1985 | 122.39 % | -20.2% |
| 1986 | 143.06 % | +16.9% |
| 1987 | 94.78 % | -33.7% |
| 1988 | 69.65 % | -26.5% |
| 1989 | 80.46 % | +15.5% |
| 1990 | 76.24 % | -5.2% |
| 1991 | 71.18 % | -6.6% |
| 1992 | 77.31 % | +8.6% |
| 1993 | 103.86 % | +34.4% |
| 1994 | 106.97 % | +3.0% |
| 1995 | 111.35 % | +4.1% |
| 1996 | 116.54 % | +4.7% |
| 1997 | 126.32 % | +8.4% |
| 1998 | 141.25 % | +11.8% |
| 1999 | 142.51 % | +0.9% |
| 2000 | 146.31 % | +2.7% |
| 2001 | 136.94 % | -6.4% |
| 2002 | 139.86 % | +2.1% |
| 2003 | 137.65 % | -1.6% |
| 2004 | 140.52 % | +2.1% |
| 2005 | 140.25 % | -0.2% |
| 2006 | 170.58 % | +21.6% |
| 2007 | 289.85 % | +69.9% |
| 2008 | 253.6 % | -12.5% |
| 2009 | 249.6 % | -1.6% |
| 2010 | 272.24 % | +9.1% |
| 2011 | 268.77 % | -1.3% |
| 2012 | 241.75 % | -10.1% |
| 2013 | 234.34 % | -3.1% |
| 2014 | 171.89 % | -26.7% |
| 2015 | 168.06 % | -2.2% |
| 2016 | 130.04 % | -22.6% |
| 2017 | 126.61 % | -2.6% |
| 2018 | 126.66 % | +0.0% |
| 2019 | 124.47 % | -1.7% |
| 2020 | 126.2 % | +1.4% |
| 2021 | 126.17 % | -0.0% |
| 2022 | 134.55 % | +6.6% |
| 2023 | 135.24 % | +0.5% |
Tonga compared with similar countries
- Tonga's 135.24 % is above the median for upper middle income countries, which is 56.91 %, 2.4× the median. (51 countries reporting)
- Tonga's 135.24 % is above the median for East Asia & Pacific, which is 74.85 %, 1.8× the median. (23 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 446.98 % | 355.34 % | 665.76 % | 9 |
| 1970s | 316.89 % | 164.68 % | 463.09 % | 10 |
| 1980s | 128.35 % | 69.65 % | 207.93 % | 10 |
| 1990s | 107.35 % | 71.18 % | 142.51 % | 10 |
| 2000s | 180.52 % | 136.94 % | 289.85 % | 10 |
| 2010s | 186.48 % | 124.47 % | 272.24 % | 10 |
| 2020s | 130.54 % | 126.17 % | 135.24 % | 4 |
Countries ranked near Tonga
- 6 Nauru 178 % compare
- 7 Samoa 164.39 % compare
- 8 Equatorial Guinea 141.58 % compare
- 8 Republic of Moldova 78.16 % compare
- 9 United Republic of Tanzania 72.27 % compare
- 10 Democratic People's Republic of Korea 69.2 % compare
- 10 Mauritius 128.25 % compare
- 11 Bolivia (Plurinational State of) 66.86 % compare
- 11 Ghana 124.81 % compare
- 12 Lao People's Democratic Republic 66.07 % compare
- 12 Papua New Guinea 123.83 % compare
More environment data for Tonga
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.234 °C (2025)
- Temperature change 0.858 °C (2025)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual 3.06 % change on previous year (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per unit 0 Mt CO2e per US$ of GDP (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per capita 0 Mt CO2e per person (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), annual growth rate 0.1689 % change on previous year (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), per unit of GDP 0 Mt CO2e per US$ of GDP (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), per capita 0 Mt CO2e per person (2024)
- Methane (CH4) emissions from Building (Energy) (Mt CO2e), annual 0 % change on previous year (2024)
Frequently asked questions
- What is nutrient balance — cropland nitrogen use efficiency in Tonga?
- Nutrient balance — cropland nitrogen use efficiency in Tonga was 135.24 % in 2023, according to Food and Agriculture Organization of the United Nations.
- What is the highest nutrient balance — cropland nitrogen use efficiency recorded in Tonga?
- The highest recorded value was 665.76 % in 1961.
- What is the lowest nutrient balance — cropland nitrogen use efficiency recorded in Tonga?
- The lowest recorded value was 69.65 % in 1988.
- How does Tonga rank for nutrient balance — cropland nitrogen use efficiency?
- Tonga ranks 9th out of 186 countries with data for 2023.
- Is nutrient balance — cropland nitrogen use efficiency rising or falling in Tonga?
- Over the last ten years it is down 42.3%. The long-run trend across the full record is volatile.
- Where does this Tonga data come from?
- The figures come from Food and Agriculture Organization of the United Nations, published as part of Nutrient balance — Cropland nitrogen use efficiency. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 63 observations, free to reuse under CC BY-NC-SA 3.0 IGO (FAO).
About this data
The Cropland Nutrient balance domain contains information on the flows of nitrogen, phosphorus, and potassium from mineral fertilizer, manure applied, atmospheric deposition, crop removal, and biological fixation over cropland and per unit area of cropland. The flows are aggregated to total inputs and total outputs, from which the overall nutrient balance and nutrient use efficiency on cropland are calculated. Statistics are disseminated in units of tonnes and in kg/ha, as appropriate. Nutrient use efficiency is expressed as a fraction (%).