THE UNIVERSAL SOIL TESTING SYSTEM AND FERTILIZER RECOMMENDATIONS FOR VEGETABLE CROPS

The universal soil testing system has been developed in the – Department of Plant.
Nutrition of Research Vegetable Institute in Skierniewice in 1964–1966. Since 1966 it has been used in state and cooperative soil testing laboratories for fertilizer recommendations for vegetable crops replacing the Egner-Riehm lactate procedure.
The author with the share of other co-workers (M.Mijas, A.Beresniewicz, E.Jaszczolt, B.Nowosielska, J.Smoter, H.Stupnicka, E.Szwonek, and L.Trebski (has developed the universal system trying to use the best extraction solution applied in other procedures.
Thus soil sample is not screened, ground or necessarilly dried before analysis (as in the Göhler procedure or Bagge-Olsen procedure for peats). Soil portions for analysis are measured (as in the Spurway-Lawton, Vuorinen, Göhler of Tepe procedures) instead of weighing.
Common extraction for determining pH, salinity and liming requirements is used as in the procedure of the Soil Science Department of Michigan State University.
The common extraction procedure of macronutrients for all soil types (greenhouse soils and different field soils) is used (as in Orange-Santa Clara Laboratories in California). As an extractant a dilluted acetic acid solution is used (as in the Spurway-Lawton procedure). For micronutrients extraction the modified Lindsay solution is used.
Critical nutrient levels for a universal method have

Symposium on Nutrition and Fertilization of Vegetables

O. Nowosielski

https://doi.org/10.17660/ActaHortic.1973.29.12