Arable crops

Spring applications of NPKS fertilisers have consistently outperformed traditional autumn applications of P&K fertilisers in independent trials. So why do so many growers still apply phosphate and potash in the autumn rather than in the spring.

Many cereal crops struggle to get moving in early spring due to low phosphorus levels as a result of low phosphate availability. Giving these crops a quick 'energy boost' from foliar phosphate is the best way to get them started.

Sulphur was often overlooked in the past but today it is recognised as an essential nutrient and considered just as important as nitrogen, so not to be forgotten.

Deficiency of potassium, manganese or copper during stem extension will lead to weaker stems and increase the risk of lodging later in the season.

Some fertilisers consistently spread further and more accurately than others. A heavier and larger fertiliser granule will spread further because the spreader can put more energy into it.

Phosphorus is considered the second most important nutrient after nitrogen but whilst phosphate availability in soil is influenced by many factors, including pH, it could be that the actual form of phosphate can be one of the greatest influences on crop availability.