Nitrogen use efficiency in Angola
Angola: Nitrogen use efficiency was 83.7% in 2014. ▼ Falling
Nitrogen use efficiency in Angola, 1961–2014
Source: Lassaletta et al. (2014) – processed by Our World in Data. Measured in %.
Analysis
In 2014, nitrogen use efficiency in Angola stood at 83.7%.
That represents a change of up 27.3% on the previous year and up 27.1% over ten years.
Over the whole period, nitrogen use efficiency in Angola peaked at 119.5% in 1961 and was at its lowest, 36.9%, in 1985.
Angola ranks 39th of 205 countries on this measure, in the top quarter.
The long-run direction has been consistently falling across the 54 years of available data.
Nitrogen use efficiency in Angola, year by year
| Year | % | Change |
|---|---|---|
| 1961 | 119.5% | — |
| 1962 | 116.6% | -2.4% |
| 1963 | 108.5% | -7.0% |
| 1964 | 109.7% | +1.1% |
| 1965 | 98.2% | -10.5% |
| 1966 | 92.1% | -6.2% |
| 1967 | 88.3% | -4.1% |
| 1968 | 91.6% | +3.8% |
| 1969 | 104.4% | +13.9% |
| 1970 | 99.2% | -4.9% |
| 1971 | 78.6% | -20.8% |
| 1972 | 70.6% | -10.1% |
| 1973 | 80.6% | +14.1% |
| 1974 | 91.3% | +13.3% |
| 1975 | 90.4% | -1.0% |
| 1976 | 89.3% | -1.2% |
| 1977 | 52.1% | -41.7% |
| 1978 | 57.6% | +10.7% |
| 1979 | 51.1% | -11.4% |
| 1980 | 48.3% | -5.5% |
| 1981 | 48.5% | +0.5% |
| 1982 | 52.1% | +7.4% |
| 1983 | 51.1% | -2.0% |
| 1984 | 49.5% | -3.0% |
| 1985 | 36.9% | -25.4% |
| 1986 | 47.5% | +28.5% |
| 1987 | 50.8% | +7.0% |
| 1988 | 48.5% | -4.6% |
| 1989 | 40.6% | -16.2% |
| 1990 | 50.2% | +23.6% |
| 1991 | 56.4% | +12.2% |
| 1992 | 53.5% | -5.2% |
| 1993 | 50.8% | -5.0% |
| 1994 | 58.6% | +15.5% |
| 1995 | 60.2% | +2.7% |
| 1996 | 62.9% | +4.5% |
| 1997 | 56.7% | -10.0% |
| 1998 | 63.9% | +12.7% |
| 1999 | 59.6% | -6.7% |
| 2000 | 62.3% | +4.5% |
| 2001 | 68.8% | +10.4% |
| 2002 | 70.1% | +2.0% |
| 2003 | 70.8% | +0.9% |
| 2004 | 65.9% | -6.9% |
| 2005 | 73.9% | +12.2% |
| 2006 | 63.8% | -13.6% |
| 2007 | 67.5% | +5.7% |
| 2008 | 66.4% | -1.6% |
| 2009 | 72.7% | +9.6% |
| 2010 | 68.7% | -5.5% |
| 2011 | 71.2% | +3.5% |
| 2012 | 44.2% | -37.9% |
| 2013 | 65.8% | +48.8% |
| 2014 | 83.7% | +27.3% |
Angola compared with similar countries
- Angola's 83.7% is above the median for lower middle income countries, which is 55.2%, 1.5× the median. (45 countries reporting)
- Angola's 83.7% is above the median for Sub-Saharan Africa, which is 62.2%, 1.3× the median. (45 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 103.2% | 88.3% | 119.5% | 9 |
| 1970s | 76.1% | 51.1% | 99.2% | 10 |
| 1980s | 47.4% | 36.9% | 52.1% | 10 |
| 1990s | 57.3% | 50.2% | 63.9% | 10 |
| 2000s | 68.2% | 62.3% | 73.9% | 10 |
| 2010s | 66.7% | 44.2% | 83.7% | 5 |
Countries ranked near Angola
More reference data data for Angola
- Emission Totals - Indirect emissions (N2O) - Manure applied to Soils 0.4536 (2050)
- Emission Totals - Indirect emissions (N2O) - Manure left on Pasture 2.99 (2050)
- Emission Totals - Indirect emissions (N2O) - IPCC Agriculture 3.82 (2050)
- Emission Totals - Indirect emissions (N2O) - Crop Residues 0.163 (2050)
- Emission Totals - Indirect emissions (N2O) - Agricultural Soils 3.82 (2050)
- Emission Totals - Emissions (N2O) - Manure applied to Soils 1.52 (2050)
- Emission Totals - Emissions (N2O) - Manure Management 1.82 (2050)
- Emission Totals - Emissions (N2O) - Manure left on Pasture 15.22 (2050)
- Emission Totals - Emissions (N2O) - IPCC Agriculture 20.43 (2050)
- Emission Totals - Emissions (N2O) - Crop Residues 0.8877 (2050)
Frequently asked questions
- What is nitrogen use efficiency in Angola?
- Nitrogen use efficiency in Angola was 83.7% in 2014, according to Lassaletta et al. (2014) – processed by Our World in Data.
- What is the highest nitrogen use efficiency recorded in Angola?
- The highest recorded value was 119.5% in 1961.
- What is the lowest nitrogen use efficiency recorded in Angola?
- The lowest recorded value was 36.9% in 1985.
- How does Angola rank for nitrogen use efficiency?
- Angola ranks 39th out of 205 countries with data for 2014.
- Is nitrogen use efficiency rising or falling in Angola?
- Over the last ten years it is up 27.1%. The long-run trend across the full record is falling.
- Where does this Angola 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.