There is also a phone number for the Cedara Fertilizer Advisory Service. Liming to prevent this is described, as well as quantities. Apparently liming need only be done very three to five years, once the correct soil balance has been reached. Pipes can be lengthened easily if the water table falls. It works well up to 100 metres depth, and has even given satisfactory results up to 140 metres.
Installation is easy and maintenance minimal.
An interesting supplement deals with various articles in English and Afrikaans on the fresh produce sector. Export statistics on apples, pears, grapes and stone fruit are given, quality and logistics discussed and port facilities described. How to handle the shipping of perishables to Europe and the trends of vegetable marketing are also given, as well as advice on packaging. The University of the Free State has also established a Chair in International Agricultural Marketing and Development , headed by Prof. Herman van Schalkwyk. Each desk produces management information and performs a wide variety of tasks and deals with research topics on its respective commodity.