Americas and Oceania Group - Dr. Paul Fixen
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| Latin America |
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 | Brazil
Dr. Luís Prochnow
Dr. Valter Casarin
Dr. Eros Francisco |
 | Northern Latin America
Dr. Raúl Jaramillo
Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, Jamaica, Panama, Peru, Puerto Rico, Venezuela |
 | Latin America - Southern Cone
Dr. Fernando Garcia
Argentina, Bolivia, Chile, Paraguay, Uruguay |
 | Mexico and Central America
Dr. Armando Tasistro
Mexico, Belize, Guatemala, Honduras,
El Salvador, Nicaragua |
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| North America |
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 | Northcentral U.S.
Dr. Scott Murrell
(IA, IL, IN, MN, SD, WI) |
 | Northeast North America
Dr. Tom Bruulsema
(NB, NS, ON, PEI, PQ & CT, DE, MA, ME, MD, MI, NH, NJ, NY, OH, PA, RI, VA, VT, WV) |
 | Northern Great Plains
Dr. Tom Jensen
(AB, MB, SK & MT, ND) |
 | Southeast U.S.
Dr. Steve Phillips
(AL, AR, FL, GA, KY, LA, MO, MS, NC, TN, SC) |
 | Southern & Central Great Plains
Dr. Mike Stewart
(CO, KS, OK, NE, NM, TX) |
 | Western North America
Dr. Rob Mikkelsen
(AZ, BC, CA, ID, NV, OR, UT, WA, WY) |
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| Asia and Africa Goup - Dr. Adrian Johnston | |
| China |
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 | Northcentral China
Dr. Ping He
Beijing, Hebei, Henan, Shandong, Shanxi, Tianjin |
 | Northeast China
Dr. Ping He
Heilongjiang, Jilin, Liaoning |
 | Northwest China
Dr. Shutian Li
Gansu, Inner Mongolia, Ningxia, Qinghai, Shaanxi, Xinjiang |
 | Southeast China
Dr. Fang Chen
Anhui, Fujian, Hubei, Hunan, Jiangsu, Jiangxi, Shanghai, Zhejiang |
 | Southwest China
Dr. Shihua Tu
Chongqing, Guangdong, Guangxi, Guizhou, Hainan, Sichuan, Tibet, Yunnan |
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| South Asia | |
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| North & East India and Bangladesh
Dr. Sudarshan Dutta
Assam, Bihar, Haryana, Himachal Pradesh, Jammu & Kashmir, Jharkhand, Meghalaya, Nagaland, Punjab, Sikkim, Tripura, Uttar Pradesh, Uttaranchal, West Bengal and Bangladesh
|
| Southern India and Sri Lanka
Dr. T. Satyanarayana
Andhra Pradesh, Karnataka, Kerala, Orissa, Tamil Nadu, and Sri Lanka
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| Western India
Dr. Kaushik Majumdar
Chhattisgarh, Gujarat, Madhya Pradesh, Maharashtra, Rajasthan
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| Southeast Asia |
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| Southeast Asia
Dr. Thomas Oberthur
Cambodia, Indonesia, Laos, Malaysia, Myanmar, Philippines, Thailand, Viet Nam |
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| Eastern Europe / Central Asia and Middle East Group - Dr. S. Ye. Ivanova | |
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| Nitrogen Program Director - Dr. Cliff Snyder | |
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