Biological fixation — Cropland nitrogen per unit area in Bulgaria
Bulgaria: Biological fixation — Cropland nitrogen per unit area was 0.6835 kg/ha in 2023. ◆ Volatile
Biological fixation — Cropland nitrogen per unit area in Bulgaria, 1961–2023
Source: Food and Agriculture Organization of the United Nations. Measured in kg/ha.
Analysis
Bulgaria recorded 0.6835 kg/ha for biological fixation — cropland nitrogen per unit area in 2023.
That represents a change of down 17.0% on the previous year and up 158.5% over ten years.
Over the whole period, biological fixation — cropland nitrogen per unit area in Bulgaria peaked at 3.87 kg/ha in 2017 and was at its lowest, 0.1598 kg/ha, in 2014.
Bulgaria ranks 156th of 176 countries on this measure, in the bottom quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Biological fixation — Cropland nitrogen per unit area in Bulgaria, year by year
| Year | kg/ha | Change |
|---|---|---|
| 1961 | 2.01 kg/ha | — |
| 1962 | 1.5 kg/ha | -25.4% |
| 1963 | 1.97 kg/ha | +31.4% |
| 1964 | 2.51 kg/ha | +27.8% |
| 1965 | 2.19 kg/ha | -12.7% |
| 1966 | 3.1 kg/ha | +41.3% |
| 1967 | 2.74 kg/ha | -11.6% |
| 1968 | 1.59 kg/ha | -42.0% |
| 1969 | 1.88 kg/ha | +18.3% |
| 1970 | 1.89 kg/ha | +0.8% |
| 1971 | 1.76 kg/ha | -6.9% |
| 1972 | 1.38 kg/ha | -21.9% |
| 1973 | 1.68 kg/ha | +22.2% |
| 1974 | 1.68 kg/ha | -0.0% |
| 1975 | 2.24 kg/ha | +33.3% |
| 1976 | 2.47 kg/ha | +10.0% |
| 1977 | 2.65 kg/ha | +7.5% |
| 1978 | 3.16 kg/ha | +19.2% |
| 1979 | 3.3 kg/ha | +4.2% |
| 1980 | 2.8 kg/ha | -15.0% |
| 1981 | 3.16 kg/ha | +12.8% |
| 1982 | 3.2 kg/ha | +1.2% |
| 1983 | 2.5 kg/ha | -21.7% |
| 1984 | 2.63 kg/ha | +5.0% |
| 1985 | 2.25 kg/ha | -14.5% |
| 1986 | 2.41 kg/ha | +7.2% |
| 1987 | 2.27 kg/ha | -5.8% |
| 1988 | 2.14 kg/ha | -5.8% |
| 1989 | 2.14 kg/ha | +0.0% |
| 1990 | 2.02 kg/ha | -5.7% |
| 1991 | 1.86 kg/ha | -7.6% |
| 1992 | 1.56 kg/ha | -16.4% |
| 1993 | 1.08 kg/ha | -30.5% |
| 1994 | 0.9583 kg/ha | -11.4% |
| 1995 | 1.36 kg/ha | +42.3% |
| 1996 | 0.9975 kg/ha | -26.9% |
| 1997 | 0.8909 kg/ha | -10.7% |
| 1998 | 1.03 kg/ha | +15.2% |
| 1999 | 0.9512 kg/ha | -7.3% |
| 2000 | 0.6539 kg/ha | -31.3% |
| 2001 | 0.66 kg/ha | +0.9% |
| 2002 | 0.7268 kg/ha | +10.1% |
| 2003 | 0.5142 kg/ha | -29.3% |
| 2004 | 0.4327 kg/ha | -15.8% |
| 2005 | 0.3419 kg/ha | -21.0% |
| 2006 | 0.2522 kg/ha | -26.2% |
| 2007 | 0.2818 kg/ha | +11.7% |
| 2008 | 0.2849 kg/ha | +1.1% |
| 2009 | 0.2742 kg/ha | -3.8% |
| 2010 | 0.3269 kg/ha | +19.2% |
| 2011 | 0.2637 kg/ha | -19.3% |
| 2012 | 0.243 kg/ha | -7.8% |
| 2013 | 0.2644 kg/ha | +8.8% |
| 2014 | 0.1598 kg/ha | -39.6% |
| 2015 | 1.42 kg/ha | +787.0% |
| 2016 | 1.54 kg/ha | +8.4% |
| 2017 | 3.87 kg/ha | +151.9% |
| 2018 | 2.57 kg/ha | -33.7% |
| 2019 | 1.26 kg/ha | -50.8% |
| 2020 | 0.9718 kg/ha | -23.1% |
| 2021 | 0.9173 kg/ha | -5.6% |
| 2022 | 0.8238 kg/ha | -10.2% |
| 2023 | 0.6835 kg/ha | -17.0% |
Bulgaria compared with similar countries
- Bulgaria's 0.6835 kg/ha is below the median for high income countries, which is 3.23 kg/ha, 21% of the median. (52 countries reporting)
- Bulgaria's 0.6835 kg/ha is below the median for Europe & Central Asia, which is 3.06 kg/ha, 22% of the median. (42 countries reporting)
Biggest year-on-year movements
Years where Biological fixation — Cropland nitrogen per unit area in Bulgaria changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 2015 | +787.0% | 0.1598 kg/ha | 1.42 kg/ha |
| 2017 | +151.9% | 1.54 kg/ha | 3.87 kg/ha |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 2.16 kg/ha | 1.5 kg/ha | 3.1 kg/ha | 9 |
| 1970s | 2.22 kg/ha | 1.38 kg/ha | 3.3 kg/ha | 10 |
| 1980s | 2.55 kg/ha | 2.14 kg/ha | 3.2 kg/ha | 10 |
| 1990s | 1.27 kg/ha | 0.8909 kg/ha | 2.02 kg/ha | 10 |
| 2000s | 0.4423 kg/ha | 0.2522 kg/ha | 0.7268 kg/ha | 10 |
| 2010s | 1.19 kg/ha | 0.1598 kg/ha | 3.87 kg/ha | 10 |
| 2020s | 0.8491 kg/ha | 0.6835 kg/ha | 0.9718 kg/ha | 4 |
Countries ranked near Bulgaria
- 153 Georgia 0.8782 kg/ha compare
- 154 Libya 0.7362 kg/ha compare
- 155 Papua New Guinea 0.6878 kg/ha compare
- 157 Puerto Rico 0.6504 kg/ha compare
- 158 Norway 0.5808 kg/ha compare
- 159 Azerbaijan 0.5043 kg/ha compare
More environment data for Bulgaria
- Historical exposure to drought — Land soil moisture anomaly -1.39 Percentage change (2025)
- Historical exposure to drought — Cropland soil moisture anomaly -1.52 Percentage change (2025)
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.573 °C (2025)
- Temperature change 2.18 °C (2025)
- Wood-based panels — Production, annual growth rate 0 % change on previous year (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual -6.02 % 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 -0.7509 % change on previous year (2024)
Frequently asked questions
- What is biological fixation — cropland nitrogen per unit area in Bulgaria?
- Biological fixation — cropland nitrogen per unit area in Bulgaria was 0.6835 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 Bulgaria?
- The highest recorded value was 3.87 kg/ha in 2017.
- What is the lowest biological fixation — cropland nitrogen per unit area recorded in Bulgaria?
- The lowest recorded value was 0.1598 kg/ha in 2014.
- How does Bulgaria rank for biological fixation — cropland nitrogen per unit area?
- Bulgaria ranks 156th out of 176 countries with data for 2023.
- Is biological fixation — cropland nitrogen per unit area rising or falling in Bulgaria?
- Over the last ten years it is up 158.5%. The long-run trend across the full record is volatile.
- Where does this Bulgaria 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
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 (%).