Latest releases of new datasets and data updates from different sources around the world
Our Insights blog presents deep data-driven analysis and visual content on important global issues from the expert data team at Knoema.Learn more
Quick data summaries and visualizations on trending industry, political, and socioeconomic topics from Knoema’s database.US Purchasing Managers Index Falls Below 50, Signals Contraction US Agricultural Exports to China Falling, Farmers Seek New Markets United States: Higher Education Costs Flat in 2018 Learn more
Leverage our AI Workflow Tools and online data environment to manipulate, visualize, present, and export data.
Published by source: 04 July 2019
Expected next release: 04 January 2020
The gross nutrient balances (N and P) are calculated as the difference between the total quantity of nutrient inputs entering an agricultural system (mainly fertilisers, livestock manure), and the quantity of nutrient outputs leaving the system (mainly uptake of nutrients by crops and grassland). Gross nutrient balances are expressed in tonnes of nutrient surplus (when positive) or deficit (when negative). This calculation can be used as a proxy to reveal the status of environmental pressures, such as declining soil fertility in the case of a nutrient deficit, or for a nutrient surplus the risk of polluting soil, water and air. The nutrient balance indicator is also expressed in terms of kilogrammes of nutrient surplus per hectare of agricultural land to facilitate the comparison of the relative intensity of nutrients in agricultural systems between countries.