Fertiliser nitrogen use efficiency in irrigated cotton was assessed on the Darling Downs over 3 years.

Deep drainage and runoff, combined with poor nitrogen fertiliser practice, is resulting in significant nitrogen losses in early season irrigation.

This report presents the results of an impact assessment of a cluster of nine nutrition research projects funded by the CRDC over the years 2008-2016.

UNE 1501 – ‘ Phosphorus availability in raingrown cotton’, was conducted at ‘Colonsay’, via Brookstead, on the Darling Downs in Queensland, at a long term nutrition site, owned and maintained by Incitec Pivot for 30 y

For sustainable cotton production, Australian cotton farming systems need to promote and optimize soil biological functions to by improving nutrient use efficiency, increasing biological nitrogen inputs, reducing dise