The 4^th European Symposium of Amaranth was held in Nitra, Slovak Republic, in 16 - 2. August 1999. It is evident, that for more and more scientists Amaranth has became an important scientific topic. The cultural Amaranth has become a model crop of agronomic, nutritional, and energetic research for the conditions of 21 century.

In 1994 - 1997 was in Slovak Republic realised a research project with a title: "The Adaptability of Amaranth (Amaranthus L.) Production and utilisation in Slovakia". In this time (1999 - 2001) we have a new project with a title: "Deepening of Theoretic Knowledge of the Growing and Use of Amaranth". From this research works is very many interesting results for the theory and praxis of amaranth. One of scientific goals of these projects is in order to obtain stabile yields 3.0 t·ha^-1 the agronomic model should be proposed.