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

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

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