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Table 5 Nitrogen use for growth of each crop

From: Regional water footprints of potential biofuel production in China

N use (kg/hectare) Cassava Sweet sorghum Jatropha curcas
Guangxi 187.5a 150.0 [73]
Guangdong 358.8 [74]
Yunnan 154.7b 25 [75]
Fujian 206.1b
Jiangxi 75.9b
Heilongjiang 136.8 [67]
Jilin 159.6 [67]
Liaoning 150.0 [67]
Shandong 120.0 [67]
Gansu 225.0 [67]
Guizhou 53.3 [76]
Sichuan 33.3 [77]
Chongqing 33.3c
  1. a From site investigation
  2. b Replaced with the average fertilizer use in China
  3. c Replaced with the data of Sichuan province