Global fertiliser supplies have fallen by nearly half in the past year, while fertiliser prices have soared, with some types of prices almost tripling in the past, according to the BBC on the 28th. The World Food Program has warned that fertilizer shortages could increase the number of people facing food shortages by 7 million. Estimates show that global grain production is likely to fall from 45 million tons in 2021 to about 38 million tons in 2022 due to fertilizer shortages. The global shortage of chemical fertilizers has caused a potential food crisis, and African countries, which are highly dependent on imported chemical fertilizers, are facing great challenges. (world wide Web)