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Fate and efficiency of 15 N-labelled slow- and controlled-release fertilizers

Chalk, Phillip M.; Craswell, Eric; Polidoro, Jose C.; Chen, Deli


Slow- and controlled-release N fertilizers are designed to increase efficiency and reduce N losses by better synchronizing N availability with plant demand. This paper reviews the use of 15N with these fertilizers to collect quantitative data on the efficiency, residual value and N losses for which relatively few data are available compared with conventional labelled urea and ammonium-based fertilizers. In general, studies of slow-release forms (isobutylidene diurea, oxamide, ureaform) with...[Show more]

CollectionsANU Research Publications
Date published: 2015
Type: Journal article
Source: Nutrient Cycling in Agroecosystems
DOI: 10.1007/s10705-015-9697-2


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