Abstract
AbstractOne of the world’s greatest challenges is achieving sustainable food security without environmental damage. The projected increase in world population and will require use of nitrogen fertilisers for food production although excess agricultural N is a major contributor to climate change and ecosystem degradation. Southern Humate is a low-cost natural organic biostimulant that can beneficially alter soil microbiome function and plant productivity. We present evidence from a 5-year field study showing that adding humate to urea, global the most widely used N fertiliser, significantly altered soil microbiome composition, increased grassland production by 13.1% and significantly decreasing topsoil N leaching by 61.4% compared with urea. The increase in N fertiliser efficiency and reduction in negative environmental impact could contribute towards development of ecologically sustainable agriculture.
Publisher
Research Square Platform LLC
Reference68 articles.
1. Global food demand and the sustainable intensification of agriculture;Tilman D;Proceedings of the National Academy of Sciences of the United States of America,2011
2. FAO. State of food security and nutrition in the world 2022. Food and Agriculture Oraganisation, Rome. 260 pp. (2022).
3. Nitrogen in Agriculture: Balancing the Cost of an Essential Resource;Robertson GP;Annual Review of Environment and Resources,2009
4. Food security and the role of fertilizer in supporting it;Stewart WM;Procedia Engineering,2012
5. Global nitrogen and phosphorus fertilizer use for agriculture production in the past half century: shifted hot spots and nutrient imbalance;Lu C;Earth System Science Data,2017