Biological fixation — Cropland nitrogen per unit area in Tunisia
Tunisia: Biological fixation — Cropland nitrogen per unit area was 1.91 kg/ha in 2023. ▲ Rising
Biological fixation — Cropland nitrogen per unit area in Tunisia, 1961–2023
Source: Food and Agriculture Organization of the United Nations. Measured in kg/ha.
Analysis
The most recent figure for biological fixation — cropland nitrogen per unit area in Tunisia is 1.91 kg/ha, measured in 2023.
That represents a change of up 4.4% on the previous year and up 1.6% over ten years.
Over the whole period, biological fixation — cropland nitrogen per unit area in Tunisia peaked at 2.2 kg/ha in 2019 and was at its lowest, 0.5446 kg/ha, in 1961.
Tunisia ranks 138th of 176 countries on this measure, in the bottom quarter.
The long-run direction has been consistently rising across the 63 years of available data.
Biological fixation — Cropland nitrogen per unit area in Tunisia, year by year
| Year | kg/ha | Change |
|---|---|---|
| 1961 | 0.5446 kg/ha | — |
| 1962 | 0.7274 kg/ha | +33.6% |
| 1963 | 0.8491 kg/ha | +16.7% |
| 1964 | 0.8948 kg/ha | +5.4% |
| 1965 | 0.8438 kg/ha | -5.7% |
| 1966 | 0.9011 kg/ha | +6.8% |
| 1967 | 0.973 kg/ha | +8.0% |
| 1968 | 1.01 kg/ha | +3.6% |
| 1969 | 0.9981 kg/ha | -0.9% |
| 1970 | 0.8679 kg/ha | -13.0% |
| 1971 | 1.06 kg/ha | +22.5% |
| 1972 | 1.43 kg/ha | +34.8% |
| 1973 | 1.41 kg/ha | -1.3% |
| 1974 | 1.44 kg/ha | +1.9% |
| 1975 | 1.73 kg/ha | +20.1% |
| 1976 | 1.85 kg/ha | +7.2% |
| 1977 | 1.16 kg/ha | -37.2% |
| 1978 | 1.5 kg/ha | +29.0% |
| 1979 | 1.81 kg/ha | +20.5% |
| 1980 | 2.07 kg/ha | +14.2% |
| 1981 | 1.84 kg/ha | -10.9% |
| 1982 | 1.7 kg/ha | -7.4% |
| 1983 | 1.46 kg/ha | -14.2% |
| 1984 | 1.29 kg/ha | -12.0% |
| 1985 | 1.75 kg/ha | +35.7% |
| 1986 | 1.43 kg/ha | -18.0% |
| 1987 | 1.53 kg/ha | +6.8% |
| 1988 | 0.7585 kg/ha | -50.4% |
| 1989 | 1.2 kg/ha | +58.0% |
| 1990 | 1.27 kg/ha | +5.7% |
| 1991 | 1.87 kg/ha | +47.9% |
| 1992 | 1.86 kg/ha | -1.0% |
| 1993 | 1.74 kg/ha | -6.1% |
| 1994 | 0.9828 kg/ha | -43.6% |
| 1995 | 1.06 kg/ha | +7.8% |
| 1996 | 1.4 kg/ha | +31.9% |
| 1997 | 1.02 kg/ha | -27.0% |
| 1998 | 1.26 kg/ha | +23.5% |
| 1999 | 1.39 kg/ha | +10.6% |
| 2000 | 1.11 kg/ha | -20.4% |
| 2001 | 0.9741 kg/ha | -12.2% |
| 2002 | 0.9595 kg/ha | -1.5% |
| 2003 | 1.41 kg/ha | +47.3% |
| 2004 | 1.36 kg/ha | -3.9% |
| 2005 | 1.39 kg/ha | +2.3% |
| 2006 | 1.29 kg/ha | -7.1% |
| 2007 | 1.73 kg/ha | +34.0% |
| 2008 | 1.57 kg/ha | -8.9% |
| 2009 | 1.84 kg/ha | +16.7% |
| 2010 | 1.44 kg/ha | -21.6% |
| 2011 | 1.85 kg/ha | +28.1% |
| 2012 | 1.91 kg/ha | +3.2% |
| 2013 | 1.88 kg/ha | -1.2% |
| 2014 | 1.63 kg/ha | -13.5% |
| 2015 | 1.48 kg/ha | -9.0% |
| 2016 | 1.85 kg/ha | +25.1% |
| 2017 | 1.82 kg/ha | -1.5% |
| 2018 | 2 kg/ha | +9.8% |
| 2019 | 2.2 kg/ha | +10.0% |
| 2020 | 1.73 kg/ha | -21.7% |
| 2021 | 1.88 kg/ha | +8.7% |
| 2022 | 1.83 kg/ha | -2.3% |
| 2023 | 1.91 kg/ha | +4.4% |
Tunisia compared with similar countries
- Tunisia's 1.91 kg/ha is below the median for lower middle income countries, which is 10.24 kg/ha, 19% of the median. (38 countries reporting)
- Tunisia's 1.91 kg/ha is above the median for Middle East, North Africa, Afghanistan & Pakistan, which is 1.76 kg/ha, 1.1× the median. (19 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 0.8599 kg/ha | 0.5446 kg/ha | 1.01 kg/ha | 9 |
| 1970s | 1.43 kg/ha | 0.8679 kg/ha | 1.85 kg/ha | 10 |
| 1980s | 1.5 kg/ha | 0.7585 kg/ha | 2.07 kg/ha | 10 |
| 1990s | 1.39 kg/ha | 0.9828 kg/ha | 1.87 kg/ha | 10 |
| 2000s | 1.36 kg/ha | 0.9595 kg/ha | 1.84 kg/ha | 10 |
| 2010s | 1.81 kg/ha | 1.44 kg/ha | 2.2 kg/ha | 10 |
| 2020s | 1.84 kg/ha | 1.73 kg/ha | 1.91 kg/ha | 4 |
Countries ranked near Tunisia
More environment data for Tunisia
- Historical exposure to drought — Land soil moisture anomaly -14.25 Percentage change (2025)
- Historical exposure to drought — Cropland soil moisture anomaly -6.62 Percentage change (2025)
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.421 °C (2025)
- Temperature change 2.02 °C (2025)
- Wood-based panels — Production, annual growth rate 0 % change on previous year (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual 2.34 % 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 -0.2204 % change on previous year (2024)
Frequently asked questions
- What is biological fixation — cropland nitrogen per unit area in Tunisia?
- Biological fixation — cropland nitrogen per unit area in Tunisia was 1.91 kg/ha in 2023, according to Food and Agriculture Organization of the United Nations.
- What is the highest biological fixation — cropland nitrogen per unit area recorded in Tunisia?
- The highest recorded value was 2.2 kg/ha in 2019.
- What is the lowest biological fixation — cropland nitrogen per unit area recorded in Tunisia?
- The lowest recorded value was 0.5446 kg/ha in 1961.
- How does Tunisia rank for biological fixation — cropland nitrogen per unit area?
- Tunisia ranks 138th out of 176 countries with data for 2023.
- Is biological fixation — cropland nitrogen per unit area rising or falling in Tunisia?
- Over the last ten years it is up 1.6%. The long-run trend across the full record is rising.
- Where does this Tunisia data come from?
- The figures come from Food and Agriculture Organization of the United Nations, published as part of Biological fixation — Cropland nitrogen per unit area. Statizoid updates them automatically from the source API.
Download this data
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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 (%).