Standards of the content of nutrients and their ratios in particular growth phases of winter wheat required for estimation of the nutrition state of plants by the DRIS method
1993
Mercik, S. (Szkola Glowna Gospodarstwa Wiejskiego, Warszawa (Poland). Katedra Chemii Rolnej) | Sommer, K. | Rossing, K. (Bonn University, (Germany). Inst. Chemii Rolnej)
Mean content of nutrient elements and their ratios in particular winter wheat growth phases were determined. The determination concerned only those treatments of the investigations carried out in Germany and Poland, in which very high yields were obtained. These values have been assumed as a standard, which can be used in estimation of nutrition state of plants by different methods within a long period of growth
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