ArticlePlants (Basel, Switzerland)2026
Black Soldier Fly Frass Combined with Ammonium Sulfate Enhances Maize Productivity and Nitrogen Use Efficiency Under Calcareous Soil Conditions.
Article in Plants (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Efficient nitrogen (N) management in calcareous soils remains challenging due to limited nutrient availability, poor synchronization between N supply and crop demand, and low fertilizer use efficiency. While black soldier fly frass (BSFF) represents an emerging organic amendment, its comparative effects relative to vermicompost (VC) and mineral N fertilizers under calcareous soil conditions remain insufficiently understood. In this study, we evaluated the effects of BSFF- and VC-based integrated organic-mineral fertilization strategies involving urea (U) and ammonium sulfate (AS) on maize productivity, nitrogen use efficiency (NUE), and selected soil chemical properties. A two-year field experiment was conducted at Quzhou Experimental Station, China Agricultural University, using a randomized complete block design (RCBD) with nine treatments: unfertilized control (CK), sole mineral fertilizers (U and AS), sole organic amendments (BSFF and VC), and integrated combinations (UBSFF, UVC, ASBSFF, and ASVC). All fertilizer treatments received 180 kg N ha
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