Table 1.

Average lignocellulose yields and fertilizer and water requirements per hectare and per kg DM yield of important C4 grasses.

^aAverage yields, total available lignocellulose and yield potentials as reported in sections Lignocellulose as a co-product and Lignocellulose as primary product.

^bRecommendations for medium fertility soils by University of Georgia's Cooperative Extension Service (Kissel and Sonon, 2008), except recommendation for miscanthus, which is based on Christian et al. (2008).

^cData calculated using the average lignocellulose yields per hectare in USDA's Crop Nutrient Tool (http://plants.usda.gov/npk/main, accessed: 20-12-2012), except the values for miscanthus, which are based on Cadoux et al. (2012).

^dCalculated by taking into account average lignocellulose yield.

^eData based on Al-Amoodi et al. (2004) for maize and sugarcane, on Saballos (2008) for sorghum, on Long et al. (2001) for miscanthus and Bouton (2008) for switchgrass.