美国化学会：2023可持续肥料生产领域的重要创新报告（英文版）（16页）.pdf

1、SUSTAINABLE AGRICULTURE INSIGHT REPORT|1SUSTAINABLE AGRICULTUREInnovation in fertilizer production CAS INSIGHTSModern agricultural methods are struggling to meet future food demand imposed by the accelerating growth of the worlds population,set to reach 8.5 billion by 2030,and 9.7 billion by 2050.1

2、Furthermore,the total global food demand is expected to increase by 35%to 56%between 2010 and 2050.2With mounting pressures come economic consequences.According to reports from The Food and Agriculture Organization of the United Nations and the Intergovernmental Panel on Climate Change Special Repor

3、t on Climate Change and Land,agricultural emissions are estimated to range between 10.7 and 12.0 gigatonnes of CO2 equivalent(GtCO2e)year.3The most important nutrients for fertilizers are nitrogen,phosphorus,and potassium,while others,such as calcium,magnesium,and sulfur,tend to be less frequently u

4、sed.47 Synthetic fertilizers use phosphorus mined from phosphate rock,potassium mined from potash ores,and ammonia from atmospheric nitrogen.8 It has been calculated that 147 million tons of ammonia,219 million tons of phosphate,and 44 million tons of potassium were produced in 2020.911 Despite thes

5、e substantial amounts,nearly half of the global population in 2015(approximately 3.5 billion)were thought to be reliant on food produced by nitrogen fertilizers alone.12Organic fertilizers include manure from various animals,alfalfa meal,blood meal,fish meal,and wood ash,as well as wastewater or sew

6、age.13 Manure and other agricultural wastes can be bulky and expensive to treat,transport,and dispose.The global organic fertilizer market is expected to reach$19.88 billion by 2029,at a compound annual growth rate of 11.6%during the forecast period 20222029.14China is the worlds largest consumer of