Tag archive: yield potential

Variable soil demands a flexible fertiliser program

photo of farmer who manages variable soil types

The Hansen’s crop up to ninety percent of their mixed farm at Coomandook, SA. They grow canola, wheat, barley, lupin, oaten hay and lucerne. There are variable soil types across the 8,500 hectare property. It ranges from red sandy loam over clay and limestone, to deep, infertile, non-wetting sands. Variable soil […]

Three reasons why topdressing Nitrogen can fail

A crop’s nitrogen (N) requirement rises when rainfall increases the yield potential. Applying more N fertiliser to meet greater plant N demand is often appropriate, but crop uptake is not guaranteed. Understanding why can help tailor topdressing practices to increase the chances of the applied N boosting crop yield and […]

Subsoil manuring provides long term N supply

Some growers have been able to reduce N inputs for at least three years following the placement of manure into the subsoil. Trials in Victoria’s High Rainfall Zone by Southern Farming Systems are showing promising signs of multiple benefits from subsoil manuring. Originally, subsoil manuring was primarily for improving the […]

Turnaround in yield potential for the west

Rainfall in late July and early August changes the outlook for grain growers in some parts of Western Australia. Earlier this month AEGIC released a statement on the changing fortunes of the 2015 season. The STIN model predicted the average wheat yield across the state of Western Australia moving from […]

2015 crop prospects & Nitrogen

Some fertilizer goes on at or just before sowing. As the season progresses we need to: revisit paddock yield potential decide if, when and how much to top up Nitrogen (N). Splitting applications of N fertilizer through the season is a way of increasing nitrogen use efficiency, and better matching […]