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    Nitrogen fertilizer equivalence of black soldier fly frass fertilizer and synchrony of nitrogen mineralization for maize production

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    Journal Article (1.349Mb)
    Date
    2020
    Author
    Beesigamukama, D.
    Mochoge, B.
    Korir, N.
    Musyoka, M.W.
    Fiaboe, K.
    Nakimbugwe, D.
    Khamis, F.M.
    Subramanian, S.
    Dubois, T.
    Ekesi, S.
    Tanga, C.M.
    Type
    Journal Article
    Review Status
    Peer Review
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    The use of black soldier fly frass fertilizer (BSFFF) is being promoted globally. However, information on nitrogen (N) fertilizer equivalence (NFE) value and synchrony of N mineralization for crop production remains largely unknown. Comparative studies between BSFFF and commercial organic fertilizer (SAFI) were undertaken under field conditions to determine synchrony of N release for maize uptake. The BSFFF, SAFI, and urea fertilizers were applied at the rates of 0, 30, 60, and 100 kg N ha−1. The yield data from urea treated plots were used to determine the NFE of both organic inputs. Results showed that maize from BSFFF treated plots had higher N uptake than that from SAFI treated plots. High N immobilization was observed throughout the active growth stages of maize grown in soil amended with BSFFF, whereas soil treated with SAFI achieved net N release at the silking stage. Up to three times higher negative N fluxes were observed in SAFI amended soils as compared with BSFFF treated plots at the tasseling stage. The BSFFF applied at 30 and 60 kg N ha−1 achieved significantly higher NFE than all SAFI treatments. Our findings revealed that BSFFF is a promising and sustainable alternative to SAFI or urea for enhanced maize production.
    https://dx.doi.org/10.3390/agronomy10091395
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/6999
    IITA Authors ORCID
    Komi Fiaboehttps://orcid.org/0000-0001-5113-2159
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.3390/agronomy10091395
    Research Themes
    Natural Resource Management
    IITA Subjects
    Agronomy; Maize; Nutrition; Pests of Plants; Plant Breeding; Plant Health; Plant Production; Soil Fertility
    Agrovoc Terms
    Fertilizers; Hermetia Illucens; Maize; Nitrogen Fertilizers; Soil Fertility; synchronization; mineralization
    Regions
    Africa; East Africa
    Countries
    Kenya
    Hubs
    Central Africa Hub
    Journals
    Agronomy
    Collections
    • Journal and Journal Articles4835

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