"The International Potash Institute and Agriculture Today" This new leaflet describes IPI's mission, targets and activities. Ask the regional coordinator, or head office, for hard copies. Or you can download the leaflet from http://www.ipipotash.org/.

Potassium - an important nutrient for sustainable production of quality cereals (in Bulgarian) 2006. The leaflet describes the fundamentals of potassium fertilization in cereals. Available for download from our website. Please contact Dr. T. Popp, IPI Coordinator in Central Europe for copies.

The importance of potassium for nutrient supply of spice pepper (in Hungarian) 2006. The leaflet describes the role of potassium fertilization in the production of spicy pepper. This publication is available for download on our website. Please contact Dr. T. Popp, IPI Coordinator in Central Europe for copies.

Importance of balanced fertilization for sustainable crop production in the Czech & Slovak Republic (in Czech and Slovaky) 2006. The booklet describes the approach of 'Balanced Fertilization' in typical crops of the Czech and Slovak republic. Check our website or contact Dr. T. Popp, IPI Coordinator in Central Europe for copies.

Balanced Plant Nutrition in Viticulture for High Yield and Quality (in Hungarian) 112 p. 2006. ISBN 963-85126-7- 9. Proceedings of the symposium in Keckemét, Hungary, 6-7 September, 2005. Eds. I. Buzas and B. István, Institute of Environment Science, MOA, Hungary. The proceeding contain 10 papers and discusses the role of potassium in grapes, application methods of K fertilizers, K effect on different vine varieties, effect of rootstocks on transport of K and the effect of potassium and nitrogen on yield and quality of vines. Please contact Dr. T. Popp, IPI Coordinator in Central Europe for copies.

Potash Facts in Brief (in Arabic) 2006 10 p. Translated by Prof. M. Rusan. Printed jointly with the Arab Fertilizer Association (AFA), Cairo, Egypt . Copies available at IPI Head Office and at AFA, Cairo (www.afa.com.eg).

Potassium dynamics in the soil (in Arabic) 10 p. 2006. Translated by Prof. M. Rusan. Printed jointly with the Arab Fertilizer Association (AFA), Cairo, Egypt. Copies available at IPI Head Office and at AFA, Cairo (www.afa.com.eg).

Soil Fertility and Plant Nutrition in the Tropics and Subtropics. 96 p. 2006. ISBN 2-9523139-0-3. Published jointly by the International Fertilizer Industry Association (IFA) and the International Potash Institute (IPI), this book discusses the possibilities and constraints in food production on the many different soil types found in tropical and subtropical countries. By indicating ways in which crop nutrition and hence crop production can be increased on these soils in developing countries, the author shows ways to ensure food security and improve livelihoods.

Professor Dr. A. Amberger has had extensive experience in the tropics and subtropics, coordinating and organizing agricultural research programmes and serving as a consultant to international organizations. The topics discussed in this book are a synthesis of Professor Amberger's considerable experience and testimony to his many years of collaborative scientific work. The text is based largely on his lectures to students at the Technical University of Munich. For more details see our web site.

Minerales para la Agricultura en Latinoamérica (in Spanish) 574 p. 2005. ISBN 987-22647-0-8. Eds. H. Nielson and R. Sarudiansky. Latin America consumes nearly 25 million tons of fertilizers per year, a figure that grows steadily supporting the agricultural development of the region. In spite the dynamic installed capacity of the industry and local mining, the region is a net importer of nearly 4 million tons of products, mainly phosphates and potassium.

Various mining resources in the region are being rediscovered and old projects are now become profitable again in several countries.

This book represents a concerted effort of integration between geologists and agronomists in Latin American countries. Project CYTED (http://www.cyted.org) achieved this important work by recovering information and making it available to users. For copy, please contact Dr. R. Melgar, INTA, Estacion Experimental Agropecuaria Pergamino, C.C.31, C.P. 2700 Pergamino, Provincia de Buenos Aires, Argenti na (rmelgar@pergamino.inta.gov.ar).

Publications by the PDA

What is the PDA (Potash Development Association)?

The Potash Development Association is an independent organisation formed in 1984 to provide technical information and advice in the UK on soil fertility, plant nutrition and fertilizer use with particular emphasis on potash. See also www.pda.org.uk/.

Note: Hardcopies of PDA's publications are available only in the UK and Ireland.

#5a. Results from Wheat Demonstration Plots

Crops of wheat were grown on small unreplicated plots in the Arable Area of the National Agricultural Centre, Stoneleigh. The same treatments were used on the same plots for each of the 4 years; 1987-1990. Soil was sampled in the autumn before the first harvest year and in each autumn of the comparison. See PDA website.

#12. Potash for Sugar beet

During the last 20 years yields of clean beet and sugar in the UK have been increasing linearly, at an average annual rate of 0.48 tonnes per hectare of beet and 0.01 t/ha sugar. Now the aim is to increase the average yield... See PDA website.