Organic farming consultants. SA Biofarm believes in correcting the soil nutrient balance using the Albrecht system of soil analysis as this is the cornerstone to Biological Farming. As the Albrecht system of soil analysis is based on results from PAL Laboratories in the USA, our consultations are based on these results only. Consultations on soil analysis results from other laboratories will not be done. Consultations on the application of this system to your farm are available in the following formats.