Summary
A quantitative therapy method was developed for predicting and controlling grain yields of oats and spring wheat based on methods of diagnosis and yield pronosis and on effects of supplementary applications of nutrients on the chemical composition of the young plant at a fixed Dry Matter weight-level.
The characteristic interactions integrated in the models of therapy and depending on kind, source, amount and combination of the nutrient applications on the chemical composition of the young plant allow selection of the best possible nutrient therapy under the given circumstances.
The therapy method, tested by comparing predicted with experimentally obtained nutrient concentrations in the young plant, was proved reliable by the high and highly significant correlation coefficients (r>0.9;p<0.001). The correctness of the basic concepts underlying the therapy method, was thus indirectly confirmed and the possibility to use the method in agricultural practice would appear promising.
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Nielsen, J.M. Evaluation and control of the nutritional status of cereals. Plant Soil 52, 229–244 (1979). https://doi.org/10.1007/BF02184563
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DOI: https://doi.org/10.1007/BF02184563