Africa will remain a major phosphate exporter and increase nitrogen exports while importing all of its potash.
非洲仍将是磷肥的主要出口国，其氮肥的出口量将增加，但是其钾肥将全部进口。
2
Asia is expected to produce a rapidly increasing surplus of nitrogen, but will continue to import phosphate and potash.
亚洲氮肥生产过剩的情况预计将迅速增加，但将继续进口磷肥和钾肥。
3
It is expected that North America will continue to be a net importer of nitrogen and that the region will move into increasing phosphate deficit while remaining a primary supplier of potash.