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- Title
Sulfur Enhancement for the Improvement of Castor Bean Growth and Yield, and Sustainable Biodiesel Production.
- Authors
Mukhtar, Ahmed; Awan, Masood Iqbal; Sadaf, Sana; Mahmood, Athar; Javed, Talha; Shah, Adnan Noor; Shabbir, Rubab; Alotaibi, Saqer S.; Shah, Anis Ali; Adamski, Robert; Siuta, Dorota; Mahlia, T. M. Indra; Zafar, Muhammad
- Abstract
Due to limited conventional energy sources, there is a need to find substitute nonconventional sources of energy to meet the societal demands on a sustainable basis. Crude oil and edible oil remain major import items in Pakistan, the deficit of which can be compensated by using biomass, preferably inedible oilseeds. Therefore, the current study evaluated the role of sulfur (S) fertilization for improving yield (seed and oil) and biodiesel value of castor bean, a potential inedible crop with minimum input requirements. For this purpose, a combined approach of field experimentation and laboratory analysis was conducted to explore the potential of two castor bean cultivars (DS-30 and NIAB Gold) against four S supply rates, namely, 0, 20, 40, and 60 kg S ha-1, in terms of growth, phenology, and yield parameters. Subsequently, the obtained seed samples were analyzed for biodiesel-related parameters in the Bio-analytical Chemistry lab, Punjab Bio-energy Institute, Faisalabad. The incremental S rates increased the seed yield for both cultivars, and the highest yield was recorded at 60 kg S ha-1 for NIAB Gold. For NIAB Gold, the oil content increased by 7% with S fertilization at 60 kg ha-1, and for DS-30, the oil content increased by 6% at 60 kg ha-1. As with incremental S fertilization, the oil yield increased on a hectare basis, and the quantity of biodiesel produced also increased. Importantly, the tested quality parameters of biodiesel, except biodiesel viscosity, were in the ASTM standard range. Overall, it has been concluded that castor bean is a promising and sustainable option for producing biodiesel as it is non-competitive to food crops and requires little input.
- Subjects
PAKISTAN; FAISALABAD (Pakistan); CASTOR beans; EDIBLE fats &; oils; SULFUR; SEED yield; PETROLEUM; OILSEEDS
- Publication
Frontiers in Plant Science, 2022, Vol 13, p1
- ISSN
1664-462X
- Publication type
Article
- DOI
10.3389/fpls.2022.905738