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Article

The Effectiveness of Digestate Use for Fertilization in an Agricultural Cropping System

Lithuanian Research Centre for Agriculture and Forestry, LT-58344 Kedainiai, Lithuania
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Author to whom correspondence should be addressed.
Academic Editor: Raffaella Maria Balestrini
Plants 2021, 10(8), 1734; https://doi.org/10.3390/plants10081734
Received: 1 August 2021 / Revised: 16 August 2021 / Accepted: 19 August 2021 / Published: 22 August 2021
(This article belongs to the Special Issue Selected Papers from Conference of CYSENI 2021)
The need to find and maximize the use of alternative sources of nutrients for plants and soil environment have been on the forefront of research in sustainable agriculture. These alternatives have to be affordable, accessible, reproduceable, and efficient to compete with established inorganic fertilizers while at the same time reduce any potential negative impacts on the environment. We aimed to evaluate the effectiveness of digestate fertilization in an agricultural system over a period of three years. The digestate utilized in the study consisted of animal waste-based digestates, namely pig manure digestate, chicken manure digestate, and cow manure digestate, and were compared with synthetic nitrogen fertilizer. Every year, the digestate and the synthetic nitrogen fertilizer were split applied at the rate of 90 and 80 kg N ha−1. The soil chemical composition after three years of fertilization showed a slight decrease, significantly different nitrogen and carbon changes while phosphorus and potassium were significantly higher in the digestate treatments. The third year of digestate application showed higher grain yield than previous years and the yield from the digestate treatments were significantly different from the synthetic nitrogen fertilizer. The nitrogen use efficiency for the three years was in the range of 20–25 percent in the digestate treatments, with a strong correlation between the nitrogen use efficiency and the grain yield. There were varied results in the grain quality and straw quality in the digestate and synthetic nitrogen fertilizer with no clear trend observed. Our results showed a relatively high potential of animal waste digestates over the short to mid-term use with a positive result obtained in comparison to synthetic nitrogen fertilizer under favorable climatic conditions. View Full-Text
Keywords: nitrogen use efficiency; grain yield; grain quality; soil chemical quality; digestates nitrogen use efficiency; grain yield; grain quality; soil chemical quality; digestates
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MDPI and ACS Style

Doyeni, M.O.; Stulpinaite, U.; Baksinskaite, A.; Suproniene, S.; Tilvikiene, V. The Effectiveness of Digestate Use for Fertilization in an Agricultural Cropping System. Plants 2021, 10, 1734. https://doi.org/10.3390/plants10081734

AMA Style

Doyeni MO, Stulpinaite U, Baksinskaite A, Suproniene S, Tilvikiene V. The Effectiveness of Digestate Use for Fertilization in an Agricultural Cropping System. Plants. 2021; 10(8):1734. https://doi.org/10.3390/plants10081734

Chicago/Turabian Style

Doyeni, Modupe Olufemi, Urte Stulpinaite, Ausra Baksinskaite, Skaidre Suproniene, and Vita Tilvikiene. 2021. "The Effectiveness of Digestate Use for Fertilization in an Agricultural Cropping System" Plants 10, no. 8: 1734. https://doi.org/10.3390/plants10081734

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