See page 206: Cardona, Eliana; Rios, Jorge; Peña, Juan; Peñuela, Mariana; Rios, Luis (2016). "King Grass: A very promising material for the production of second generation ethanol in tropical countries". Biomass and Bioenergy. 95. Elsevier BV: 206–213. Bibcode:2016BmBe...95..206C. doi:10.1016/j.biombioe.2016.10.008. ISSN0961-9534.
Vicente-Chandler et al. found that heavily fertilized napiergrass produced 75,661 pounds of dry matter per acre per year when cut at 90-day intervals, equivalent to 84.8 tonnes per hectare per year. See page 202: Vicente-Chandler, Jose; Silva, Servando; Figarella, Jacinto (1959). "The Effect of Nitrogen Fertilization and Frequency of Cutting on the Yield and Composition of Three Tropical Grasses". Agronomy Journal. 51 (4). Wiley: 202–206. Bibcode:1959AgrJ...51..202V. doi:10.2134/agronj1959.00021962005100040006x. ISSN0002-1962.
feedipedia.org
Heuzé V., Tran G., Giger-Reverdin S., Lebas F., 2016. Elephant grass (Pennisetum purpureum). Feedipedia, a programme by INRA, CIRAD, AFZ and FAO. https://www.feedipedia.org/node/395 Last updated on June 23, 2016, 17:09
See page 206: Cardona, Eliana; Rios, Jorge; Peña, Juan; Peñuela, Mariana; Rios, Luis (2016). "King Grass: A very promising material for the production of second generation ethanol in tropical countries". Biomass and Bioenergy. 95. Elsevier BV: 206–213. Bibcode:2016BmBe...95..206C. doi:10.1016/j.biombioe.2016.10.008. ISSN0961-9534.
Vicente-Chandler et al. found that heavily fertilized napiergrass produced 75,661 pounds of dry matter per acre per year when cut at 90-day intervals, equivalent to 84.8 tonnes per hectare per year. See page 202: Vicente-Chandler, Jose; Silva, Servando; Figarella, Jacinto (1959). "The Effect of Nitrogen Fertilization and Frequency of Cutting on the Yield and Composition of Three Tropical Grasses". Agronomy Journal. 51 (4). Wiley: 202–206. Bibcode:1959AgrJ...51..202V. doi:10.2134/agronj1959.00021962005100040006x. ISSN0002-1962.
Mackay quotes yields of 360 wet tonnes per hectare per year, but does not quantify moisture content. Mackay (2020). "Mackay Bana Grass". Retrieved 11 July 2020.
The soil was fertilised, rainfall was 2700 mm. For yield results, see table 2, page 40: "Yield and nutritive quality of nine Napier grass varieties in Malaysia". S2CID59143548. {{cite journal}}: Cite journal requires |journal= (help)
Zhang et al. measured a bana grass yield of 74 dry tonnes per hectare per year with light fertilisation and 1000 mm rainfall. See pages 96, 98: Zhang, Xia; Gu, Hongru; Ding, Chenglong; Zhong, Jianli; Xu, Nengxiang (2010). "Path coefficient and cluster analyses of yield and morphological traits in Pennisetum purpureum"(PDF). Tropical Grasslands. 44. Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, China: 95–102. S2CID55554503.
Zhang et al. measured a bana grass yield of 74 dry tonnes per hectare per year with light fertilisation and 1000 mm rainfall. See pages 96, 98: Zhang, Xia; Gu, Hongru; Ding, Chenglong; Zhong, Jianli; Xu, Nengxiang (2010). "Path coefficient and cluster analyses of yield and morphological traits in Pennisetum purpureum"(PDF). Tropical Grasslands. 44. Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, China: 95–102. S2CID55554503.
viaspace.com
"The total water requirements are approximately 100 mm (4 inches) per month rainfall equivalent. [...] The yield of Giant King Grass depends on the time between harvests. For example, a six-month harvest of tall Giant King Grass, one can expect to obtain 80 or more US tons per acre (180 metric tons per hectare) of fresh grass at approximately 70-75% moisture. For two harvests per year, double these figures." Viaspace (2020). "Giant King® Grass: Grow and Harvest". Retrieved 11 July 2020.
See page 206: Cardona, Eliana; Rios, Jorge; Peña, Juan; Peñuela, Mariana; Rios, Luis (2016). "King Grass: A very promising material for the production of second generation ethanol in tropical countries". Biomass and Bioenergy. 95. Elsevier BV: 206–213. Bibcode:2016BmBe...95..206C. doi:10.1016/j.biombioe.2016.10.008. ISSN0961-9534.
Vicente-Chandler et al. found that heavily fertilized napiergrass produced 75,661 pounds of dry matter per acre per year when cut at 90-day intervals, equivalent to 84.8 tonnes per hectare per year. See page 202: Vicente-Chandler, Jose; Silva, Servando; Figarella, Jacinto (1959). "The Effect of Nitrogen Fertilization and Frequency of Cutting on the Yield and Composition of Three Tropical Grasses". Agronomy Journal. 51 (4). Wiley: 202–206. Bibcode:1959AgrJ...51..202V. doi:10.2134/agronj1959.00021962005100040006x. ISSN0002-1962.
