New trial results highlight the importance of key nutrient application timing.
The work shows an even bigger yield advantage over previous trial work completed by Niab, which suggested an average yield increase of 0.3t/ha.
Allison Grundy of CF Fertilisers said: “Initial trial results are showing yields in wheat can be improved by up to 1t/ha by applying P and K alongside N and S in the spring rather than as a separate dressing in the autumn, as is the conventional practice.
“By opting for spring application, you are allowing for uptake when the crop is actively growing, maximising the response to P and K.”
Additionally, she said spring K application supported the uptake of nitrogen, increasing the overall efficiency of the crop, leading to higher yields.
This was most effective when applied as a single application: “There is strong evidence emerging that plants can more efficiently utilise nitrogen to build yield when all these nutrients are applied in a single spring NPKS granular product as opposed to being applied separately.”
Source: Adapted from CF Fertilisers
Besides the potential yield increase, Mrs Grundy identified a number of additional benefits associated with spring application.
“Workloads are typically greatest in the autumn and so this strategy can help spread that work load and potentially reduce the total number of passes required if growers chose to opt for a single application of NPKS in the spring.