PDA News
The PDA publishes both technical News items and shorter Blog items. PDA News provides the latest up to date information on macronutrients and their use, while blog items are shorter and timelier.
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Potash Offtakes in a Dry Season
July 2025
With another dry season now coming to a close, it is worth remembering the lessons from previous years where extremes may have implications for averages that are usually employed. This specifically relates to nutrient offtakes at harvest. With an anticipated higher demand for straw this year, paying attention to the nutrient value of this is important.
Trends in Soil Potassium
May 2025
Trends in Soil Potassium (K) Index: Insights from 2022/23 PAAG Data Potassium (K) is a vital nutrient for plant growth, and its availability in soil plays a critical role in agricultural productivity. The 2022/23 data from the Professional Agricultural Analysis Group (PAAG), which can now be found here on the PDA website, highlights key trends […]
Nutrition of Maize
April 2025
With soil temperatures increasing and moisture looming (or already arrived) thoughts are turning to maize drilling. To produce a good crop, maize plants need to grow very rapidly once they have germinated. They will do this if the soil moisture and structure are good, the temperature is warm and nutrition is adequate. Maize can easily […]
Spring Potash Applications
February 2025
For those who got caught out in the autumn, or who have chosen to hold back on phosphate and potash applications due to weather, crop prospects, price or a combination of any of these, it is not too late to benefit from their application this spring. Granted conditions may still need to improve somewhat to […]
Sulphur levels on the low side following extreme wet conditions
November 2024
As is well understood, some nutrients have higher mobility levels within soils than others, meaning they are at a greater risk of leaching out of soils (or at least down the soil profile where shallow, restricted or young roots are unable to access them). Sulphur is one of the higher profile culprits, alongside nitrogen. Last […]
Global Food Security Threatened by Potassium Neglect
April 2024
Inadequate potassium management jeopardises food security and freshwater ecosystem health. Potassium, alongside nitrogen and phosphorus, is a vital nutrient for plant growth and will be fundamental to achieving the rapid rises in crop yield necessary to sustain a growing world population.
Root Implications in Wet Soils
February 2024
Although there appears to be something of a north south divide this year, most places in the UK have experienced higher than average rainfall, meaning that crops may not be looking as good as planned.
Establishment and Waterlogging
November 2023
Establishment is the most critical period in any annual crops life-cycle, as it is the time when the yield potential is set. All challenges the crop faces during the season serves to reduce the final yield from this potential
Potash Effect on Straw Strength
August 2023
With cereal harvests finished, or drawing to a close for another year, consideration should be given to the input decisions made during the year before it is too far in the memory and blurs into all the rest!
Harvest Nutrient Sampling
June 2023
With combinable crop harvest fast approaching (or already underway for some areas) it may be worth considering options for monitoring success or limitations with input decisions and soil management practices to close the feedback loop.
Focussing on the Nutrition of Maize
May 2023
Whether grown for animal silage, AD feedstock or grain, appropriate fertilisation is vital to the success of the maize crop because it greatly influences not only the yield of the crop and its nutritional content but also growing costs.
Spring Potash Applications
February 2023
For those who chose to hold off applying potash in the autumn, the recent dry weather and good field conditions may prove an opportunity to catch up on any missed applications.