PDA logo

Potash Development Association

Show menu

Potash News

The Potash Development Association publishes both technical Potash News items and shorter Blog items. Potash News provides the latest up to date information on Potash and its use, while blog items are shorter and more timely.

If you are in the UK or Ireland and are interested in receiving Potash News items through the post free of charge, then sign up on the contact page. Recipients of the Potash News can receive CPD points for BASIS, NRoSO, and Dairy Pro.

Change of PDA staff

November 2017

Our Coordinator, Peter Hoey, is leaving PDA and we are delighted to say that Ian Matts is taking over from December 1st. Ian is well known in the nutrient industry having done over 10 years with Yara Fertilisers, lastly as Technical Manager for UK and Ireland. He is now an independent agronomist/consultant, and also the […]

Grass yields: measure to manage

November 2017

To misquote a saying slightly “if you don’t measure it, you can’t manage it”, this is very important for grassland where production is so often not measured directly because grass is grown to feed livestock, rather than sell directly as a product. As a result of not measuring, the benefits of certain grassland management decisions […]

Review of potassium as a nutrient (IFS)

September 2017

At their 2016 agronomic conference the International Fertiliser Society (IFS) hosted a comprehensive and detailed review of potassium management in soils and crops by Johnny Johnston, of Rothamsted Research. Containing a host of data from long term trials run by Rothamsted, this is an excellent reference guide for advisers. You can read the abstract of […]

P & K for wholecrop cereals

August 2017

With the arrival of the new Nutrient Management Guide (RB209) from AHDB, the Wholecrop Cereal recommendations for Phosphate and Potash have been included. In the past, in the absence of good information on Wholecrop generally, advisers have often used “grass for silage” recommendations instead, reflecting the greener nature of under-ripe cereals cut for Wholecrop silage. […]

Maize and rye for AD plants

August 2017

With the huge increase in area producing forage maize and rye for anaerobic digesters, it seems timely to remember a couple of the nutrient issues that arise which can be different from normal growing practice. Firstly, harvesting often occurs earlier with the crop being greener than for normal animal feed purposes. The implication being that […]

P & K calculator revised for 2017

June 2017

With the arrival of the new AHDB Nutrient Management Guide (RB209) and its revised values for P & K offtakes, and the inclusion of more crops, we have updated our P & K Calculator accordingly. The P & K Calculator is a free tool for farmers and crop nutrition advisors in England, Wales and N […]

Nutrient Management Guide (RB209)

May 2017

AHDB have just launched a full revision of the 2010 Fertiliser Manual (RB209), which is now called the “Nutrient Management Guide (RB209)”. It can be viewed or downloaded to your computer from the AHDB website, or to your mobile device as an App. Hard copies can be requested by e-mail from AHDB. It is supplied free of […]

Second cut silage: potash and sulphur

May 2017

When cutting grass for 1st cut silage, with a view to getting a 2nd cut, there is an urgent need to get the fertiliser on for the regrowth right away, while the soil is still damp, to feed that growth. Some say that silaging the field is not complete until the fertiliser is on for […]