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Optimising fertiliser application – what level of precision can we achieve?

This paper assesses the influence of recent changes in fertiliser and grain prices on economically optimum N, P and K fertiliser rates.
optimising fertiliser application
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This Research Update paper by Craig Scanlan, Raj Malik, James Easton, Mark Gherardi, Zed Rengel, Richard Bell, Gustavo Boitt and Qifu Ma from 22 Feb 2022 explores the impact of recent changes in fertiliser and grain prices on economically optimum N, P and K fertiliser rates, and aims to quantify the range of rates that fall within the 90% confidence interval of the economically optimum rate.

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