Jerusalem artichoke (Helianthus tuberosus L.) is a potential biofuel feedstock crop in China. To conduct a comprehensive evaluation of energy use efficiency and economic perspectives for this crop, face-to-face surveys were collected from farmers in Gansu and Shandong provinces. The results demonstrated highest energy use efficiency (2.47 in Gansu and 2.37 in Shandong), net energy (59,926 MJ/ha in Gansu and 55,298 MJ/ha in Shandong) and energy productivity (0.77 kg/MJ in Gansu and 0.74 kg/MJ in Shandong) for Jerusalem artichoke plantation size ranging from 4.0–20.0 ha in Gansu and for plantation sizes >35.0 ha in Shandong. Moreover, the lowest total production costs, namely, 9913 CNY/ha and 12,264 CNY/ha, were incurred by plantation size of 20.1–35.0 ha in size in both Gansu and Shandong, respectively. In addition, the highest benefit/cost ratio and economic productivity values were observed for plantation size of 4.0–20.0 ha in Gansu (2.60 and 2.89 kg/CNY, respectively) and >35.0 ha in Shandong (1.96 and 2.17 kg/CNY, respectively). Consequently, plantation size of <35.0 ha in Gansu and >35.0 ha in Shandong are recommended for Jerusalem artichoke production with the use of mechanization in conjunction with the use of Jerusalem artichoke straw for bioenergy production. Therefore, Jerusalem artichoke may make a large contribution in meeting the growing future challenges for bioenergy production for an expanding population.
|Number of pages||9|
|Journal||Industrial Crops and Products|
|State||Published - Jul 2018|
Bibliographical noteFunding Information:
This work was supported by the Department of Energy Conservation and Technology Equipment of China National Energy Administration (Science and Technology Department, No.  32), and it was funded by the China Datang New Energy Co. Ltd. , Henan Tianguan Group Co., Ltd. , and the Fundamental Research Funds for the Central Universities ( 2014BH025 ).
© 2018 Elsevier B.V.
- Bioenergy production
- Biomass feedstock
- Economic perspectives
- Energy balance
- Jerusalem artichoke (Helianthus tuberosus L.)