Biological fixation — Cropland nitrogen per unit area in United States of America
United States of America: Biological fixation — Cropland nitrogen per unit area was 45.9 kg/ha in 2023. ▲ Rising
Biological fixation — Cropland nitrogen per unit area in United States of America, 1961–2023
Source: Food and Agriculture Organization of the United Nations. Measured in kg/ha.
Analysis
In 2023, biological fixation — cropland nitrogen per unit area in United States of America stood at 45.9 kg/ha.
That represents a change of down 3.0% on the previous year and up 18.7% over ten years.
Over the whole period, biological fixation — cropland nitrogen per unit area in United States of America peaked at 47.97 kg/ha in 2021 and was at its lowest, 9.18 kg/ha, in 1961.
That places United States of America 3rd out of 29 groups with data for 2023, putting it in the top 10%.
The long-run direction has been consistently rising across the 63 years of available data.
Biological fixation — Cropland nitrogen per unit area in United States of America, year by year
| Year | kg/ha | Change |
|---|---|---|
| 1961 | 9.18 kg/ha | — |
| 1962 | 9.41 kg/ha | +2.6% |
| 1963 | 9.68 kg/ha | +2.8% |
| 1964 | 10.09 kg/ha | +4.3% |
| 1965 | 11.7 kg/ha | +15.9% |
| 1966 | 12.71 kg/ha | +8.6% |
| 1967 | 13.57 kg/ha | +6.8% |
| 1968 | 14.24 kg/ha | +5.0% |
| 1969 | 13.81 kg/ha | -3.1% |
| 1970 | 13.94 kg/ha | +1.0% |
| 1971 | 14.35 kg/ha | +3.0% |
| 1972 | 15.44 kg/ha | +7.6% |
| 1973 | 18.7 kg/ha | +21.1% |
| 1974 | 16.11 kg/ha | -13.8% |
| 1975 | 18.57 kg/ha | +15.2% |
| 1976 | 16.28 kg/ha | -12.3% |
| 1977 | 20.43 kg/ha | +25.5% |
| 1978 | 21.81 kg/ha | +6.8% |
| 1979 | 25.12 kg/ha | +15.2% |
| 1980 | 21.91 kg/ha | -12.8% |
| 1981 | 23.13 kg/ha | +5.6% |
| 1982 | 24.68 kg/ha | +6.7% |
| 1983 | 20.12 kg/ha | -18.5% |
| 1984 | 22.24 kg/ha | +10.5% |
| 1985 | 22.88 kg/ha | +2.8% |
| 1986 | 21.46 kg/ha | -6.2% |
| 1987 | 21.5 kg/ha | +0.2% |
| 1988 | 19.22 kg/ha | -10.6% |
| 1989 | 21.83 kg/ha | +13.6% |
| 1990 | 21.41 kg/ha | -1.9% |
| 1991 | 22.19 kg/ha | +3.6% |
| 1992 | 23.34 kg/ha | +5.2% |
| 1993 | 21.46 kg/ha | -8.0% |
| 1994 | 25.84 kg/ha | +20.4% |
| 1995 | 24.13 kg/ha | -6.6% |
| 1996 | 25.89 kg/ha | +7.3% |
| 1997 | 28.92 kg/ha | +11.7% |
| 1998 | 29.66 kg/ha | +2.6% |
| 1999 | 29.77 kg/ha | +0.4% |
| 2000 | 30.18 kg/ha | +1.4% |
| 2001 | 31.08 kg/ha | +3.0% |
| 2002 | 30.65 kg/ha | -1.4% |
| 2003 | 29.26 kg/ha | -4.5% |
| 2004 | 33.91 kg/ha | +15.9% |
| 2005 | 33.73 kg/ha | -0.5% |
| 2006 | 35.35 kg/ha | +4.8% |
| 2007 | 30.67 kg/ha | -13.2% |
| 2008 | 35.03 kg/ha | +14.2% |
| 2009 | 37.87 kg/ha | +8.1% |
| 2010 | 38.28 kg/ha | +1.1% |
| 2011 | 36.11 kg/ha | -5.7% |
| 2012 | 37.31 kg/ha | +3.3% |
| 2013 | 38.66 kg/ha | +3.6% |
| 2014 | 43.4 kg/ha | +12.3% |
| 2015 | 43.28 kg/ha | -0.3% |
| 2016 | 45.49 kg/ha | +5.1% |
| 2017 | 47.61 kg/ha | +4.7% |
| 2018 | 47.39 kg/ha | -0.5% |
| 2019 | 39.75 kg/ha | -16.1% |
| 2020 | 45.75 kg/ha | +15.1% |
| 2021 | 47.97 kg/ha | +4.8% |
| 2022 | 47.32 kg/ha | -1.3% |
| 2023 | 45.9 kg/ha | -3.0% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 11.6 kg/ha | 9.18 kg/ha | 14.24 kg/ha | 9 |
| 1970s | 18.07 kg/ha | 13.94 kg/ha | 25.12 kg/ha | 10 |
| 1980s | 21.9 kg/ha | 19.22 kg/ha | 24.68 kg/ha | 10 |
| 1990s | 25.26 kg/ha | 21.41 kg/ha | 29.77 kg/ha | 10 |
| 2000s | 32.77 kg/ha | 29.26 kg/ha | 37.87 kg/ha | 10 |
| 2010s | 41.73 kg/ha | 36.11 kg/ha | 47.61 kg/ha | 10 |
| 2020s | 46.74 kg/ha | 45.75 kg/ha | 47.97 kg/ha | 4 |
Countries ranked near United States of America
More environment data for United States of America
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.306 °C (2025)
- Temperature change 1.76 °C (2025)
- Plywood and LVL — Import quantity, annual growth rate 3.21 % change on previous year (2024)
- Plywood and LVL — Import value, annual growth rate 8.74 % change on previous year (2024)
- Paper and paperboard — Import quantity, annual growth rate 11.42 % change on previous year (2024)
- Paper and paperboard — Import value, annual growth rate 5.42 % change on previous year (2024)
- Graphic papers — Import quantity, annual growth rate 8.58 % change on previous year (2024)
- Graphic papers — Import value, annual growth rate 1.54 % change on previous year (2024)
- Newsprint — Import quantity, gaps filled 728,131 t (2024)
Frequently asked questions
- What is biological fixation — cropland nitrogen per unit area in United States of America?
- Biological fixation — cropland nitrogen per unit area in United States of America was 45.9 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 United States of America?
- The highest recorded value was 47.97 kg/ha in 2021.
- What is the lowest biological fixation — cropland nitrogen per unit area recorded in United States of America?
- The lowest recorded value was 9.18 kg/ha in 1961.
- How does United States of America rank for biological fixation — cropland nitrogen per unit area?
- United States of America ranks 3rd out of 29 groups with data for 2023.
- Is biological fixation — cropland nitrogen per unit area rising or falling in United States of America?
- Over the last ten years it is up 18.7%. The long-run trend across the full record is rising.
- Where does this United States of America 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.
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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 (%).