Samoa vs Tonga: Volatilisation — Cropland nitrogen per unit area
Volatilisation — Cropland nitrogen per unit area over time
- Samoa
- Tonga
How they compare
Tonga currently reports 7.34 kg/ha against 6.34 kg/ha in Samoa, a difference of 1 kg/ha.
That makes Tonga's figure about 1.2 times Samoa's.
The two have swapped places 7 times across 63 shared years of data; in 1961 it was Samoa ahead.
Samoa ranks 139th and Tonga ranks 136th of 186 countries.
Across the 7 decades both report, Samoa averaged higher in 3 and Tonga in 4.
Head to head by decade
| Decade | Samoa | Tonga | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 2.33 kg/ha | 2.33 kg/ha | 0.0045 kg/ha | Tonga |
| 1970s | 2.54 kg/ha | 4.27 kg/ha | 1.73 kg/ha | Tonga |
| 1980s | 4.62 kg/ha | 7.72 kg/ha | 3.09 kg/ha | Tonga |
| 1990s | 7.9 kg/ha | 7.18 kg/ha | 0.7122 kg/ha | Samoa |
| 2000s | 11.43 kg/ha | 7.69 kg/ha | 3.74 kg/ha | Samoa |
| 2010s | 8.01 kg/ha | 7.41 kg/ha | 0.5996 kg/ha | Samoa |
| 2020s | 6.25 kg/ha | 7.42 kg/ha | 1.17 kg/ha | Tonga |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher volatilisation — cropland nitrogen per unit area, Samoa or Tonga?
- Tonga, at 7.34 kg/ha against 6.34 kg/ha in Samoa as of 2023.
- What is the difference in volatilisation — cropland nitrogen per unit area between Samoa and Tonga?
- 1 kg/ha, with Tonga ahead.
- How many years of comparable data are there for Samoa and Tonga?
- 63 years are reported by both, from 1961 to 2023.
- How do Samoa and Tonga rank globally for volatilisation — cropland nitrogen per unit area?
- Samoa ranks 139th and Tonga ranks 136th of 186 countries.
- Where does this data come from?
- Food and Agriculture Organization of the United Nations, published as Volatilisation — Cropland nitrogen per unit area. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
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 (%).