Nitrogen use efficiency in Guinea
Guinea: Nitrogen use efficiency was 72.1% in 2014. ▼ Falling
Nitrogen use efficiency in Guinea, 1961–2014
Source: Lassaletta et al. (2014) – processed by Our World in Data. Measured in %.
Analysis
In 2014, nitrogen use efficiency in Guinea stood at 72.1%.
The figure is up 13.6% on the previous year and down 14.9% over ten years.
Over the whole period, nitrogen use efficiency in Guinea peaked at 117.9% in 1961 and was at its lowest, 61.1%, in 2011.
That places Guinea 49th out of 205 countries with data for 2014, putting it in the top quarter.
The long-run direction has been consistently falling across the 54 years of available data.
Nitrogen use efficiency in Guinea, year by year
| Year | % | Change |
|---|---|---|
| 1961 | 117.9% | — |
| 1962 | 116.2% | -1.5% |
| 1963 | 110.9% | -4.6% |
| 1964 | 110.5% | -0.4% |
| 1965 | 106.8% | -3.3% |
| 1966 | 103.7% | -2.9% |
| 1967 | 103.2% | -0.5% |
| 1968 | 102.0% | -1.2% |
| 1969 | 102.2% | +0.2% |
| 1970 | 99.1% | -3.0% |
| 1971 | 99.0% | -0.1% |
| 1972 | 96.5% | -2.5% |
| 1973 | 97.9% | +1.4% |
| 1974 | 96.7% | -1.2% |
| 1975 | 95.2% | -1.6% |
| 1976 | 94.1% | -1.2% |
| 1977 | 94.4% | +0.3% |
| 1978 | 92.4% | -2.1% |
| 1979 | 89.1% | -3.5% |
| 1980 | 92.0% | +3.3% |
| 1981 | 90.1% | -2.1% |
| 1982 | 88.4% | -1.8% |
| 1983 | 90.2% | +2.0% |
| 1984 | 90.3% | +0.2% |
| 1985 | 92.4% | +2.3% |
| 1986 | 94.9% | +2.7% |
| 1987 | 92.2% | -2.8% |
| 1988 | 92.1% | -0.1% |
| 1989 | 90.0% | -2.3% |
| 1990 | 88.4% | -1.7% |
| 1991 | 86.3% | -2.4% |
| 1992 | 84.4% | -2.2% |
| 1993 | 87.7% | +3.9% |
| 1994 | 85.0% | -3.2% |
| 1995 | 84.5% | -0.6% |
| 1996 | 84.1% | -0.4% |
| 1997 | 87.1% | +3.5% |
| 1998 | 86.3% | -0.9% |
| 1999 | 86.7% | +0.5% |
| 2000 | 88.4% | +2.0% |
| 2001 | 88.7% | +0.3% |
| 2002 | 85.1% | -4.1% |
| 2003 | 84.9% | -0.2% |
| 2004 | 84.7% | -0.2% |
| 2005 | 84.0% | -0.9% |
| 2006 | 83.5% | -0.6% |
| 2007 | 82.6% | -1.0% |
| 2008 | 82.7% | +0.1% |
| 2009 | 80.2% | -3.0% |
| 2010 | 63.4% | -20.9% |
| 2011 | 61.1% | -3.7% |
| 2012 | 62.4% | +2.1% |
| 2013 | 63.5% | +1.7% |
| 2014 | 72.1% | +13.6% |
Guinea compared with similar countries
- Guinea's 72.1% is above the median for lower middle income countries, which is 55.2%, 1.3× the median. (45 countries reporting)
- Guinea's 72.1% is above the median for Sub-Saharan Africa, which is 62.2%, 1.2× the median. (45 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 108.2% | 102.0% | 117.9% | 9 |
| 1970s | 95.4% | 89.1% | 99.1% | 10 |
| 1980s | 91.3% | 88.4% | 94.9% | 10 |
| 1990s | 86.0% | 84.1% | 88.4% | 10 |
| 2000s | 84.5% | 80.2% | 88.7% | 10 |
| 2010s | 64.5% | 61.1% | 72.1% | 5 |
Countries ranked near Guinea
More reference data data for Guinea
- Emission Totals - Indirect emissions (N2O) - Manure applied to Soils 0.111 (2050)
- Emission Totals - Indirect emissions (N2O) - Manure left on Pasture 2.56 (2050)
- Emission Totals - Indirect emissions (N2O) - IPCC Agriculture 3.05 (2050)
- Emission Totals - Indirect emissions (N2O) - Crop Residues 0.2883 (2050)
- Emission Totals - Indirect emissions (N2O) - Agricultural Soils 3.05 (2050)
- Emission Totals - Emissions (N2O) - Manure applied to Soils 0.3722 (2050)
- Emission Totals - Emissions (N2O) - Manure Management 0.2242 (2050)
- Emission Totals - Emissions (N2O) - Manure left on Pasture 13.37 (2050)
- Emission Totals - Emissions (N2O) - IPCC Agriculture 16 (2050)
- Emission Totals - Emissions (N2O) - Crop Residues 1.57 (2050)
Frequently asked questions
- What is nitrogen use efficiency in Guinea?
- Nitrogen use efficiency in Guinea was 72.1% in 2014, according to Lassaletta et al. (2014) – processed by Our World in Data.
- What is the highest nitrogen use efficiency recorded in Guinea?
- The highest recorded value was 117.9% in 1961.
- What is the lowest nitrogen use efficiency recorded in Guinea?
- The lowest recorded value was 61.1% in 2011.
- How does Guinea rank for nitrogen use efficiency?
- Guinea ranks 49th out of 205 countries with data for 2014.
- Is nitrogen use efficiency rising or falling in Guinea?
- Over the last ten years it is down 14.9%. The long-run trend across the full record is falling.
- Where does this Guinea 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.