Using Biogas Derived Digestate of Chicken Manure for Wheat Crop Fertilization: A Laboratory-Scale Investigation

Document Type : Original Research

Authors

1 Department of Biosystems Engineering, Shahid Chamran University of Ahvaz, 61357-43311, Iran

2 Department of Biosystems Engineering, Shahid Chamran University of Ahvaz,

3 Department of Soil Science, Shahid Chamran University of Ahvaz

Abstract

The aim of this study was to compare the fertilizer properties of anaerobic digestion residues (digestate) of chicken manure and fresh chicken manure with the aim of benefiting from the produced biogas and alleviating the environmental problems of fresh chicken manure. The study was conducted in a completely randomized design. In addition to the control treatment, experimental treatment groups were Fresh Chicken Manure (FCM), Chicken Manure Digestate (CMD) and Enriched Chicken manure (ECM), each at three levels and with 3 replications. A total of 30 experimental pots were used for soil treatments and wheat planting. At the end of the growing season, soil variables including nitrogen, organic carbon, absorbable phosphorus, and pH, and physical properties of wheat including dry weight of shoots, seeds and roots were measured. The results were analyzed using SPSS statistical software. CMD application relatively increased soil nitrogen, organic carbon and phosphorus, kept the soil pH neutral, and improved wheat yield components. Compared to FCM, not only has the quality of CMD as biofertilizer not decreased, but it has also improved in some respects. CMD is superior to ECM in all studied indicators. The results are also better or at least equal in comparison with FCM. Due to the environmental benefits of anaerobic digestion of chicken manure and also the production of biogas as a valuable product and proving that the quality of the resulting fertilizer is not reduced, the use of CMD as organic fertilizer has more advantages than the use of FCM and even ECM.

Keywords

Biomechanism and Bioenergy Research
Volume 1, Issue 1
June 2022
Pages 47-54

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History

  • Receive Date: 01 March 2022
  • Revise Date: 06 April 2022
  • Accept Date: 15 April 2022

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