Biological fixation — Cropland nitrogen per unit area in Yemen
Yemen: Biological fixation — Cropland nitrogen per unit area was 3.47 kg/ha in 2023. ▲ Rising
Biological fixation — Cropland nitrogen per unit area in Yemen, 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 Yemen stood at 3.47 kg/ha.
That represents a change of down 4.9% on the previous year and down 25.3% over ten years.
Over the whole period, biological fixation — cropland nitrogen per unit area in Yemen peaked at 4.65 kg/ha in 2013 and was at its lowest, 1.71 kg/ha, in 1962.
That places Yemen 116th out of 176 countries with data for 2023, putting it in the middle of the range.
The long-run direction has been consistently rising across the 63 years of available data.
Biological fixation — Cropland nitrogen per unit area in Yemen, year by year
| Year | kg/ha | Change |
|---|---|---|
| 1961 | 1.72 kg/ha | — |
| 1962 | 1.71 kg/ha | -0.8% |
| 1963 | 1.98 kg/ha | +15.5% |
| 1964 | 1.96 kg/ha | -0.7% |
| 1965 | 1.95 kg/ha | -0.7% |
| 1966 | 2.21 kg/ha | +13.3% |
| 1967 | 2.2 kg/ha | -0.5% |
| 1968 | 2.19 kg/ha | -0.4% |
| 1969 | 2.44 kg/ha | +11.7% |
| 1970 | 2.92 kg/ha | +19.5% |
| 1971 | 3.3 kg/ha | +13.0% |
| 1972 | 3.2 kg/ha | -3.1% |
| 1973 | 3.03 kg/ha | -5.2% |
| 1974 | 3.4 kg/ha | +12.1% |
| 1975 | 3.73 kg/ha | +9.9% |
| 1976 | 3.98 kg/ha | +6.6% |
| 1977 | 4.14 kg/ha | +4.1% |
| 1978 | 4.01 kg/ha | -3.1% |
| 1979 | 4.05 kg/ha | +1.0% |
| 1980 | 4.1 kg/ha | +1.3% |
| 1981 | 4.06 kg/ha | -1.0% |
| 1982 | 3.84 kg/ha | -5.6% |
| 1983 | 2.45 kg/ha | -36.1% |
| 1984 | 1.72 kg/ha | -30.0% |
| 1985 | 2.11 kg/ha | +23.0% |
| 1986 | 2.15 kg/ha | +2.0% |
| 1987 | 1.8 kg/ha | -16.3% |
| 1988 | 2.25 kg/ha | +25.0% |
| 1989 | 3.41 kg/ha | +51.5% |
| 1990 | 3.31 kg/ha | -3.0% |
| 1991 | 2.06 kg/ha | -37.7% |
| 1992 | 3.72 kg/ha | +80.2% |
| 1993 | 3.18 kg/ha | -14.6% |
| 1994 | 2.89 kg/ha | -9.0% |
| 1995 | 2.97 kg/ha | +2.8% |
| 1996 | 2.83 kg/ha | -4.7% |
| 1997 | 2.9 kg/ha | +2.5% |
| 1998 | 3.45 kg/ha | +19.0% |
| 1999 | 2.83 kg/ha | -18.0% |
| 2000 | 2.8 kg/ha | -1.1% |
| 2001 | 2.98 kg/ha | +6.5% |
| 2002 | 2.71 kg/ha | -9.0% |
| 2003 | 2.99 kg/ha | +10.2% |
| 2004 | 2.8 kg/ha | -6.3% |
| 2005 | 2.83 kg/ha | +1.1% |
| 2006 | 3.5 kg/ha | +23.7% |
| 2007 | 4.01 kg/ha | +14.5% |
| 2008 | 4.08 kg/ha | +1.7% |
| 2009 | 4.02 kg/ha | -1.5% |
| 2010 | 4.53 kg/ha | +12.6% |
| 2011 | 4.38 kg/ha | -3.2% |
| 2012 | 4.62 kg/ha | +5.4% |
| 2013 | 4.65 kg/ha | +0.6% |
| 2014 | 4.62 kg/ha | -0.4% |
| 2015 | 4.07 kg/ha | -12.1% |
| 2016 | 4.1 kg/ha | +0.9% |
| 2017 | 3.88 kg/ha | -5.4% |
| 2018 | 3.52 kg/ha | -9.3% |
| 2019 | 3.56 kg/ha | +1.0% |
| 2020 | 3.73 kg/ha | +4.9% |
| 2021 | 3.77 kg/ha | +1.2% |
| 2022 | 3.65 kg/ha | -3.4% |
| 2023 | 3.47 kg/ha | -4.9% |
Yemen compared with similar countries
- Yemen's 3.47 kg/ha is below the median for low income countries, which is 12.63 kg/ha, 27% of the median. (21 countries reporting)
- Yemen's 3.47 kg/ha is above the median for Middle East, North Africa, Afghanistan & Pakistan, which is 1.76 kg/ha, 2.0× the median. (19 countries reporting)
Biggest year-on-year movements
Years where Biological fixation — Cropland nitrogen per unit area in Yemen 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 |
|---|---|---|---|
| 1992 | +80.2% | 2.06 kg/ha | 3.72 kg/ha |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 2.04 kg/ha | 1.71 kg/ha | 2.44 kg/ha | 9 |
| 1970s | 3.58 kg/ha | 2.92 kg/ha | 4.14 kg/ha | 10 |
| 1980s | 2.79 kg/ha | 1.72 kg/ha | 4.1 kg/ha | 10 |
| 1990s | 3.01 kg/ha | 2.06 kg/ha | 3.72 kg/ha | 10 |
| 2000s | 3.27 kg/ha | 2.71 kg/ha | 4.08 kg/ha | 10 |
| 2010s | 4.19 kg/ha | 3.52 kg/ha | 4.65 kg/ha | 10 |
| 2020s | 3.66 kg/ha | 3.47 kg/ha | 3.77 kg/ha | 4 |
Countries ranked near Yemen
More environment data for Yemen
- Historical exposure to drought — Land soil moisture anomaly -36.73 Percentage change (2025)
- Historical exposure to drought — Cropland soil moisture anomaly -31.12 Percentage change (2025)
- Standard Deviation, annual growth rate 43.43 % change on previous year (1998)
- Standard Deviation 0.393 °C (1998)
- Temperature change 1.37 °C (1998)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual 1.66 % change on previous year (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per unit 0 Mt CO2e per US$ of GDP (2018)
- 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 2.86 % change on previous year (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), per unit of GDP 0 Mt CO2e per US$ of GDP (2018)
Frequently asked questions
- What is biological fixation — cropland nitrogen per unit area in Yemen?
- Biological fixation — cropland nitrogen per unit area in Yemen was 3.47 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 Yemen?
- The highest recorded value was 4.65 kg/ha in 2013.
- What is the lowest biological fixation — cropland nitrogen per unit area recorded in Yemen?
- The lowest recorded value was 1.71 kg/ha in 1962.
- How does Yemen rank for biological fixation — cropland nitrogen per unit area?
- Yemen ranks 116th out of 176 countries with data for 2023.
- Is biological fixation — cropland nitrogen per unit area rising or falling in Yemen?
- Over the last ten years it is down 25.3%. The long-run trend across the full record is rising.
- Where does this Yemen 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 (%).