Nitrogen use efficiency in Yemen
Yemen: Nitrogen use efficiency was 27.8% in 2014. ◆ Volatile
Nitrogen use efficiency in Yemen, 1961–2014
Source: Lassaletta et al. (2014) – processed by Our World in Data. Measured in %.
Analysis
Yemen recorded 27.8% for nitrogen use efficiency in 2014. That is the lowest value across all 54 years on record.
Compared with earlier readings it is down 29.5% on the previous year and down 23.7% over ten years.
Over the whole period, nitrogen use efficiency in Yemen peaked at 164.5% in 1965 and was at its lowest, 27.8%, in 2014.
That places Yemen 146th out of 205 countries with data for 2014, putting it in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Nitrogen use efficiency in Yemen, year by year
| Year | % | Change |
|---|---|---|
| 1961 | 156.2% | — |
| 1962 | 160.6% | +2.9% |
| 1963 | 163.8% | +2.0% |
| 1964 | 159.5% | -2.7% |
| 1965 | 164.5% | +3.1% |
| 1966 | 145.1% | -11.8% |
| 1967 | 140.2% | -3.4% |
| 1968 | 142.3% | +1.5% |
| 1969 | 150.2% | +5.5% |
| 1970 | 146.8% | -2.3% |
| 1971 | 150.9% | +2.8% |
| 1972 | 140.6% | -6.9% |
| 1973 | 154.9% | +10.2% |
| 1974 | 141.0% | -9.0% |
| 1975 | 135.7% | -3.7% |
| 1976 | 139.6% | +2.8% |
| 1977 | 122.7% | -12.1% |
| 1978 | 78.9% | -35.7% |
| 1979 | 78.3% | -0.8% |
| 1980 | 80.0% | +2.1% |
| 1981 | 81.3% | +1.7% |
| 1982 | 77.3% | -5.0% |
| 1983 | 46.0% | -40.4% |
| 1984 | 43.0% | -6.6% |
| 1985 | 39.2% | -8.9% |
| 1986 | 57.0% | +45.6% |
| 1987 | 71.8% | +25.8% |
| 1988 | 53.0% | -26.2% |
| 1989 | 60.6% | +14.3% |
| 1990 | 48.6% | -19.7% |
| 1991 | 38.5% | -20.8% |
| 1992 | 58.6% | +52.2% |
| 1993 | 67.7% | +15.5% |
| 1994 | 62.9% | -7.1% |
| 1995 | 63.2% | +0.5% |
| 1996 | 57.5% | -9.1% |
| 1997 | 43.6% | -24.2% |
| 1998 | 54.3% | +24.6% |
| 1999 | 50.0% | -7.9% |
| 2000 | 48.9% | -2.3% |
| 2001 | 47.2% | -3.4% |
| 2002 | 46.9% | -0.7% |
| 2003 | 44.2% | -5.8% |
| 2004 | 36.5% | -17.4% |
| 2005 | 47.9% | +31.4% |
| 2006 | 52.8% | +10.1% |
| 2007 | 43.8% | -17.1% |
| 2008 | 43.3% | -1.1% |
| 2009 | 44.2% | +2.1% |
| 2010 | 45.4% | +2.6% |
| 2011 | 46.6% | +2.7% |
| 2012 | 50.0% | +7.3% |
| 2013 | 39.5% | -21.0% |
| 2014 | 27.8% | -29.5% |
Yemen compared with similar countries
- Yemen's 27.8% is below the median for low income countries, which is 62.0%, 45% of the median. (24 countries reporting)
- Yemen's 27.8% is above the median for Middle East, North Africa, Afghanistan & Pakistan, which is 27.8%, 1.0× the median. (23 countries reporting)
Biggest year-on-year movements
Years where Nitrogen use efficiency 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 | +52.2% | 38.5% | 58.6% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 153.6% | 140.2% | 164.5% | 9 |
| 1970s | 128.9% | 78.3% | 154.9% | 10 |
| 1980s | 60.9% | 39.2% | 81.3% | 10 |
| 1990s | 54.5% | 38.5% | 67.7% | 10 |
| 2000s | 45.6% | 36.5% | 52.8% | 10 |
| 2010s | 41.8% | 27.8% | 50.0% | 5 |
Countries ranked near Yemen
More reference data data for Yemen
- Emission Totals - Indirect emissions (N2O) - Manure applied to Soils 0.1676 (2050)
- Emission Totals - Indirect emissions (N2O) - Manure left on Pasture 3.77 (2050)
- Emission Totals - Indirect emissions (N2O) - IPCC Agriculture 4.35 (2050)
- Emission Totals - Indirect emissions (N2O) - Crop Residues 0.0827 (2050)
- Emission Totals - Indirect emissions (N2O) - Agricultural Soils 4.35 (2050)
- Emission Totals - Emissions (N2O) - Manure applied to Soils 0.5619 (2050)
- Emission Totals - Emissions (N2O) - Manure Management 0.2189 (2050)
- Emission Totals - Emissions (N2O) - Manure left on Pasture 15.38 (2050)
- Emission Totals - Emissions (N2O) - IPCC Agriculture 17.96 (2050)
- Emission Totals - Emissions (N2O) - Crop Residues 0.4503 (2050)
Frequently asked questions
- What is nitrogen use efficiency in Yemen?
- Nitrogen use efficiency in Yemen was 27.8% in 2014, according to Lassaletta et al. (2014) – processed by Our World in Data.
- What is the highest nitrogen use efficiency recorded in Yemen?
- The highest recorded value was 164.5% in 1965.
- What is the lowest nitrogen use efficiency recorded in Yemen?
- The lowest recorded value was 27.8% in 2014.
- How does Yemen rank for nitrogen use efficiency?
- Yemen ranks 146th out of 205 countries with data for 2014.
- Is nitrogen use efficiency rising or falling in Yemen?
- Over the last ten years it is down 23.7%. The long-run trend across the full record is volatile.
- Where does this Yemen data come from?
- The figures come from Lassaletta et al. (2014) – processed by Our World in Data, published as part of Nitrogen use efficiency. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 54 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Nitrogen use efficiency (NUE) is the ratio between nitrogen inputs and output. A NUE of 40% means that only 40% of nitrogen inputs are converted into nitrogen in the form of crops.