Although the earth contains enough potash to meet the increased global demand for crop production and U.S. supplies are likely secure, some regions lack potash deposits needed for optimal food crop yields, according to a recent USGS global assessment of potash resources.
Canpotex Ltd, owned by a trio of North American potash producers, is seeking an 8 percent, or $25 per tonne price increase in its 2015 potash supply contract with China's Sinofert Holdings Ltd, Mosaic Co Chief Executive Jim Prokopanko said on Wednesday.
Leakages of nutrients necessary for food production – especially nitrogen and phosphorus – cause severe eutrophication to the Earth's aquatic ecosystems and promote climate change. However, this threat also hides an opportunity.
By Tim Harrigan, Michigan State University Extension
Nitrogen and phosphorus are nutrients that are essential for crop growth and profitability, but crop nutrients that escape from the field are potential pollutants. Cropland tends to be nutrient-rich and runoff from the farmstead, pastures and fields can transport sediment, organic solids, nutrients and other contaminants to surface waters.