During the last decade economy of Latvia has experienced a decrease, crises and also depression. Further development process of Latvia could lead to a rapid economical boom. The application of scientific researches into the development of nationaly economy of Latvia is one of the important aspects. Though the globalisation and commercalisation of scientific researches must be taken into account as well. Science development is opening wide range of possibilitities for research perfection. Most of the Latvian, Lithuanian and Slovakian entrepreneurs are 30-40 years old, who suddenly appeared in the circumstances of conventionally free economy in their twenties.

The epidemiology of barley yellow dwarf disease is highly complex, involving numerous interactions between the abiotic environment and the crop, virus and vector - components of the disease. Barley yellow dwarf is the most economically damaging virus disease of grass and cereal crops worldwide. The disease identified as BYD has been reported in all countries in Europe causing losses on barley and oats, wheat and maize; losses on grasses are recognized but more difficult to quantify. There are five different strains of viruses causing BYD disease and all of them induce similar symptoms of chlorosis and stunting in graminaceous hosts. This report represents an overview of system components and their interactions in the epidemiology of barley yellow dwarf disease. As the main components considered here are aphids - (the only vectors of these viruses), host plants and viruses causing BYD disease. Some aspects of interactions between these components are also discussed.

This paper deals with the results of focus group discussions concerning the Baltic Pulp project carried out among inhabitants of Jekabpils district in February and March 2001. Group discussions were a base for qualitative analysis where differences between opinion within different social groups had been fixed. This gives an insight into opinions as well as suggestions concerning ecological, economical and social factors, connected to the planned pulp mill.

The article describes present situation in further education of agricultural advisers and agronomists. There are three major challenges in rural and agricultural development today - coverage, sustainability and relevance. Changes in further education and information technologies play the most important role for agricultural advisers. Farmers want to study and get a certificate of agricultural education in order to be able to participate in different projects and acquire the EU structural funds. The article deals with the problem of using the EU structural funds for rural development. Agiculturists need professional advice from agricultural advisers.

One of the main preconditions for an economical milk production is a balanced cow feeding that contains high quality grass forage. Chemical composition of cocksfoot forage during vegetation was investigated at the Research Centre "Sigra" in the Biochemical laboratory of the Latvia University of Agriculture. Changes in the content of crude protein, NEL MJ kg*[-1) of DM, NDF, ADF and DM digestibility were determined. The chemical composition of grass forage depends on many factors, the most significant of which is the harwesting time. The feeding value of the cocksfoot grass decreases during its growing stages as the content of fibre increases and becomes lignified.

Vocational education in all countries provides a specific learning system to their students and students are more motivated to take practical training for their further development. Agriculture-based vocational educational institutions have been facing problems of losing its students since 1998. To promote survival of these schools, a non-agriculture based curriculum was provided. Nowadays, in order to support agriculture-based vocational education, there is a need to do research on the prospects and needs of this type of schooling in Latvia. There is a need for new methods and models of curricula, based on practical needs of students, in order to promote management and marketing skills for future farmers.