Plant Nitrogen Uptake From Insect Frass Is Affected by the Nitrification Rate as Revealed by Urease and Nitrification Inhibitors
نویسندگان
چکیده
Insect protein production is considered a sustainable alternative to livestock which furthermore utilizes waste streams. Its can have positive but also potentially negative environmental effects, require evaluation. Frass, the byproduct of insect production, regarded an efficient organic fertilizer or soil amendment. However, several studies report frass effects on plant growth and nitrogen (N) cycling. Therefore, pot trial was carried out sought understand N release from subsequent nutrient uptake Italian ryegrass. Mealworm (MWF) buffalo worm (BFW) applied at two rates (1.5 3% w/w) soil-sand mix. To evaluate processes, alone, with nitrification inhibitor (NI), urease (UI), both (NI+UI). Plant N, inorganic were measured experiment's end. gauge whether altered fluxes induced changes in microbial community, biomass, bacterial/archaeal abundances ergosterol content as fungal biomarker, determined. Both types application stimulated mineralization. The rate inhibited seed germination, possibly due salinity ammonia toxicity. At 1.5% rate, effective fertilizers. MWF led higher biomass uptake, owing its extractable concentrations. caused nitrite accumulation absence NI. NI improved archaeal bacterial prevented accumulation. UI reduced mineralization, showing that substantial fraction ureic. enhanced contribution revealing importance bacteria mineralization processes when not applied. combined, greater than alone. Our study demonstrated usefulness studying frass. improve minimize losses following application, reducing effects. retard frass, allowing slow-release fertilizer, should be used concurrently
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ژورنال
عنوان ژورنال: Frontiers in sustainable food systems
سال: 2021
ISSN: ['2571-581X']
DOI: https://doi.org/10.3389/fsufs.2021.721840