09. Potash Development Association (PDA)


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Biosolids and the Need for Potash (PDA Guidance Leaflet No.20)
PDA leaflet No. 20. It provides guidance on the use of biosolids (sewage sludge), explains the safe sludge matrix and the potash requirements of crops receiving biosolids. PDA, Leaflet 20, June 2007.
Fodder Beet - Fertiliser Requirements (PDA Guidance Leaflet No.16)
PDA leaflet No.16.This leaflet provides practical advice and guidelines for fertilising fodder beet. It includes information on soil fertility, nutrient uptake, nutrient removal, soil management, N. P and K recommendations plus advice on timings, the minor nutrients and trace elements. May 2001, reviewed 2005.
Fodder Beet - P&K offtake (PDA Guidance Leaflet No.27)
PDA leaflet number 27. This leaflet addresses the use of potassium and phosphate fertilisers for fodder beet. May 2001, reviewed 2005
Forage Maize - Fertiliser Requirements (PDA Guidance Leaflet No.17)
PDA leaflet number 17 (March 2008 edition). Provides guidance on the nutritional needs of forage maize.
Grain Legumes Need Potash (PDA Guidance Leaflet No.18)
PDA leaflet number 18. This leaflet discusses the potash needs of peas and beans. March 1996
Key to Nutrient Management Planing - Soil Analysis (PDA Guidance Leaflet No.24)
PDA leaflet number 24. It covers topics such as sampling, frequency of testing, what to test for, interpretation of the results, soil nutrient status and high fertility soils. PDA, Leaflet 24, 2011.
NK Arable Top Dressing (PDA Guidance Leaflet No.22)
PDA leaflet number 22. This leaflet covers the general importance of potash and explains why applying it as a top dressing can offer benefits. February 2005
Nutrient Requirements of Forage Crops (PDA Guidance Leaflet No.26)
PDA leaflet number 26. A 3 year study undertaken by Kingshay Farming Trust and supported by the Potash Development Association has examined the nutritional needs and performance of a range of forage crops. The key results are reported in this leaflet. August 2000, reviewed 2005.
Nutrients in Crop Material 2017: Phosphate and Potash Removal by Crops
PDA Leaflet outlining the amount of Phosphorus, Potassium and Magnesium typically removed by crops. May 2017 edition.
Oilseed Rape & Potash (PDA Guidance Leaflet No.13)
PDA leaflet number 13. This guidance leaflet describes the benefits of potash to oilseed rape and provides practical advice on recommendations and timings. November 2004, reviewed 2005.
Potash and Cereal Straw (PDA Guidance Leaflet No.10)
PDA leaflet number 10. This leaflet provides practical guidance on the potash value of cereal straw. It provides information on potash uptake by cereals, penalties of low potash reserves in the soil and relevant research projects.
Potash and the Environment (PDA Guidance Leaflet No.29)
This PDA leaflet highlights that potash does not in itself cause any environmental concerns, but more seriously that a shortage of potash can cause reduced recovery and inefficient use of nitrogen by crops, which may lead to an increased loss of N. PDA. Leaflet No. 29. 2006
Potash for Cereals (PDA Guidance Leaflet No.11)
PDA leaflet number 11. It covers topics such as why potash is important, effect on plant vigour, potash uptake and the economics of potash use. July 2001, reviewed 2005.
Potash for Grassland (PDA Guidance Leaflet No.14)
PDA leaflet number 14. It covers topics such as why potash is important, deficiency symptoms, potash supply, soil and herbage analysis, recommendations, application timings and a discussion on the economics of potash use on grassland. August 2001, reviewed 2005.
Potash for Heavy Soils (PDA Guidance Leaflet No.19)
PDA leaflet number 19. This leaflet covers the basics regarding the management of potash on heavy soils. Reviewed 2005.
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