The rising cost of inputs has growers searching for ways to enhance nutrient use efficiency and understand its impact on pack-out and yield. A previous trial at the PotatoLink demonstration site in Springbank (Victoria) explored how farm practices impact the effectiveness of biologicals, including fungicide application, soil nutrient availability, and fertiliser use. The positive results from that trial, including improvements in tuber size, quantity, and specific gravity, shaped the objectives for this new trial.

Potato growers know that seed is an expensive input not to be wasted. And inefficient planting and spacing, including skips and doubles, can be costly.

Optimising seed spacing provides a real opportunity to minimise inputs while maximising yield. To evaluate the economic impact of poor planter performance, PotatoLink conducted a demonstration on the impact of seed spacing on potato yield and size.