Biological fixation — Cropland nitrogen per unit area in Melanesia
Melanesia: Biological fixation — Cropland nitrogen per unit area was 1.62 kg/ha in 2023. ▼ Falling
Biological fixation — Cropland nitrogen per unit area in Melanesia, 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 Melanesia stood at 1.62 kg/ha.
Compared with earlier readings it is down 8.2% on the previous year and down 13.3% over ten years.
Over the whole period, biological fixation — cropland nitrogen per unit area in Melanesia peaked at 2.58 kg/ha in 1985 and was at its lowest, 1.61 kg/ha, in 2021.
The long-run direction has been consistently falling across the 63 years of available data.
Biological fixation — Cropland nitrogen per unit area in Melanesia, year by year
| Year | kg/ha | Change |
|---|---|---|
| 1961 | 2.34 kg/ha | — |
| 1962 | 2.34 kg/ha | -0.3% |
| 1963 | 2.25 kg/ha | -3.7% |
| 1964 | 2.3 kg/ha | +2.2% |
| 1965 | 2.21 kg/ha | -3.9% |
| 1966 | 2.24 kg/ha | +1.4% |
| 1967 | 2.34 kg/ha | +4.6% |
| 1968 | 2.52 kg/ha | +7.8% |
| 1969 | 2.49 kg/ha | -1.3% |
| 1970 | 2.45 kg/ha | -1.6% |
| 1971 | 2.42 kg/ha | -1.2% |
| 1972 | 2.24 kg/ha | -7.5% |
| 1973 | 2.13 kg/ha | -4.6% |
| 1974 | 2.11 kg/ha | -1.1% |
| 1975 | 2.04 kg/ha | -3.4% |
| 1976 | 2.04 kg/ha | +0.0% |
| 1977 | 2.16 kg/ha | +5.9% |
| 1978 | 2.16 kg/ha | +0.0% |
| 1979 | 2.34 kg/ha | +8.5% |
| 1980 | 2.45 kg/ha | +4.5% |
| 1981 | 2.47 kg/ha | +0.8% |
| 1982 | 2.57 kg/ha | +4.3% |
| 1983 | 2.33 kg/ha | -9.5% |
| 1984 | 2.55 kg/ha | +9.7% |
| 1985 | 2.58 kg/ha | +1.0% |
| 1986 | 2.47 kg/ha | -4.1% |
| 1987 | 2.48 kg/ha | +0.1% |
| 1988 | 2.33 kg/ha | -5.7% |
| 1989 | 2.26 kg/ha | -3.1% |
| 1990 | 2.33 kg/ha | +3.1% |
| 1991 | 2.37 kg/ha | +1.6% |
| 1992 | 2.37 kg/ha | +0.1% |
| 1993 | 2.33 kg/ha | -2.0% |
| 1994 | 2.35 kg/ha | +0.9% |
| 1995 | 2.37 kg/ha | +1.1% |
| 1996 | 2.4 kg/ha | +1.1% |
| 1997 | 2.36 kg/ha | -1.5% |
| 1998 | 2.03 kg/ha | -14.3% |
| 1999 | 2.14 kg/ha | +5.7% |
| 2000 | 2.1 kg/ha | -1.8% |
| 2001 | 2.21 kg/ha | +5.4% |
| 2002 | 2.17 kg/ha | -2.1% |
| 2003 | 2.11 kg/ha | -2.5% |
| 2004 | 2.13 kg/ha | +0.7% |
| 2005 | 2.01 kg/ha | -5.6% |
| 2006 | 2.03 kg/ha | +1.3% |
| 2007 | 1.88 kg/ha | -7.6% |
| 2008 | 1.76 kg/ha | -6.3% |
| 2009 | 1.76 kg/ha | +0.3% |
| 2010 | 1.79 kg/ha | +1.5% |
| 2011 | 1.89 kg/ha | +5.6% |
| 2012 | 1.82 kg/ha | -3.9% |
| 2013 | 1.87 kg/ha | +2.8% |
| 2014 | 1.9 kg/ha | +1.7% |
| 2015 | 1.81 kg/ha | -4.7% |
| 2016 | 1.77 kg/ha | -2.3% |
| 2017 | 1.69 kg/ha | -4.5% |
| 2018 | 1.67 kg/ha | -1.3% |
| 2019 | 1.7 kg/ha | +1.7% |
| 2020 | 1.71 kg/ha | +0.9% |
| 2021 | 1.61 kg/ha | -6.0% |
| 2022 | 1.77 kg/ha | +9.7% |
| 2023 | 1.62 kg/ha | -8.2% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 2.34 kg/ha | 2.21 kg/ha | 2.52 kg/ha | 9 |
| 1970s | 2.21 kg/ha | 2.04 kg/ha | 2.45 kg/ha | 10 |
| 1980s | 2.45 kg/ha | 2.26 kg/ha | 2.58 kg/ha | 10 |
| 1990s | 2.31 kg/ha | 2.03 kg/ha | 2.4 kg/ha | 10 |
| 2000s | 2.02 kg/ha | 1.76 kg/ha | 2.21 kg/ha | 10 |
| 2010s | 1.79 kg/ha | 1.67 kg/ha | 1.9 kg/ha | 10 |
| 2020s | 1.68 kg/ha | 1.61 kg/ha | 1.77 kg/ha | 4 |
Countries ranked near Melanesia
- 13 Burundi 32.58 kg/ha compare
- 13 Venezuela (Bolivarian Republic of) 3.43 kg/ha compare
- 14 Belize 28.58 kg/ha compare
- 14 Syrian Arab Republic 2.53 kg/ha compare
- 15 Republic of Moldova 2.28 kg/ha compare
- 15 Zambia 28.37 kg/ha compare
- 16 China, mainland 28.15 kg/ha compare
- 17 China 28.05 kg/ha compare
- 17 Polynesia 1.38 kg/ha compare
- 18 Micronesia (Federated States of) 1.24 kg/ha compare
- 18 Suriname 23.57 kg/ha compare
- 19 Guinea-Bissau 23.48 kg/ha compare
More environment data for Melanesia
- Historical exposure to drought — Cropland soil moisture anomaly 2.37 Percentage change (2025)
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Historical exposure to drought — Land soil moisture anomaly 1.59 Percentage change (2025)
- Standard Deviation 0.179 °C (2025)
- Temperature change 0.857 °C (2025)
- Nutrient phosphate P2O5 (total) — Use per area of cropland 3.85 kg/ha (2024)
- Land area — Area 52,995 1000 ha (2024)
- Nutrient phosphate P2O5 (total) — Use per capita 0.47 kg/cap (2024)
- Nutrient phosphate P2O5 (total) — Use per value of agricultural 1.3 g/Int$ (2024)
- Nutrient potash K2O (total) — Import quantity 21,133 t (2024)
Frequently asked questions
- What is biological fixation — cropland nitrogen per unit area in Melanesia?
- Biological fixation — cropland nitrogen per unit area in Melanesia was 1.62 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 Melanesia?
- The highest recorded value was 2.58 kg/ha in 1985.
- What is the lowest biological fixation — cropland nitrogen per unit area recorded in Melanesia?
- The lowest recorded value was 1.61 kg/ha in 2021.
- How does Melanesia rank for biological fixation — cropland nitrogen per unit area?
- Melanesia ranks 16th out of 18 countries with data for 2023.
- Is biological fixation — cropland nitrogen per unit area rising or falling in Melanesia?
- Over the last ten years it is down 13.3%. The long-run trend across the full record is falling.
- Where does this Melanesia 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 (%).