Chapter taken from: Stafford, J. (ed.), Precision agriculture for sustainability, Burleigh Dodds Science Publishing, Cambridge, UK, 2018, (ISBN 978 1 78676 204 7)
Chapter taken from: Rengel, Z. (ed.), Achieving sustainable crop nutrition, Burleigh Dodds Science Publishing, Cambridge, UK, 2020, (ISBN 978 1 78676 312 9)