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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