Organic and inorganic nitrogen amendments reduce biodegradation of biodegradable plastic mulch films
Sreejata Bandopadhyay,Marie English,Marife B. Anunciado,Mallari Starrett,Jialin Hu,José E. Liquet y González,Douglas G. Hayes,Sean M. Schaeffer,and Jennifer M. DeBruyn
Sreejata Bandopadhyay
Department of Biosystems Engineering and Soil Science, University of
Tennessee, Knoxville, Tennessee, USA
present address: Earth and Biological Sciences Directorate, Pacific
Northwest National Laboratory, Richland, Washington, USA
Marie English
Department of Biosystems Engineering and Soil Science, University of
Tennessee, Knoxville, Tennessee, USA
We added organic and inorganic nitrogen amendments to two soil types in a laboratory incubation study in order to understand how that would impact biodegradable plastic mulch (BDM) decomposition. We found that nitrogen amendments, particularly urea and inorganic nitrogen, suppressed BDM degradation in both soil types. However, we found limited impact of BDM addition on soil nitrification, suggesting that overall microbial processes were not compromised due to the addition of BDMs.
We added organic and inorganic nitrogen amendments to two soil types in a laboratory incubation...