The Effectiveness of Lignite Coal and Biochar in Reducing Nitrogen (N) Losses from Cattle Feedlot Manure
Abstract
139 words
This study was conducted at the University of Melbourne
Burnley campus aimed at investigating the effectiveness of
lignite coal and biochar in reducing nitrogen losses from feedlot
cattle manure. Forty (40) kg of manure was mixed with either
6kg of biochar or lignite and the other 40kg of manure were
used as control. These were put in 220 drum replicated 3 times
where 50g of N in form of urea were sprayed in them. The
concentration of urea, NH4
+ and NO3
-, and emissions of N2O
and NH3 were monitored for 21 days in each drum to assess
nitrogen loss. At the end of the experiment (3 weeks), biochar
and lignite reduced ammonia loss by 38% and 72% respectively
as compared to the control. However biochar increased N2O
flux 10 fold as compared to that of the control.
Subjects
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