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2 Journal of Research and Applications in Agricultural Engineering

2 2004

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Razvitie biologiceskogo selskogo hozajstva v Latvii

100%

Viesturs D. , Ivanov S.

tom Vol. 49, nr 2

35-36

The paper provides data on the development of biological farms in Latvia, and characteristics of the factors which enhance and hamper this process. An increase in the number of these farms is prognosticated due to the EU financing. The tasks of agricultural engineering are characterised in this field, as well as several developments at the Ulbroka Research Centre.

The ecological risks from the use of field sprayers and background for their examination methods and parameters

80%

Viesturs D. , Punculis P. , Zakis I.

tom Vol. 49, nr 2

37-39

On the basis of sprayer examination methods specified in European countries the approved examination methods have beer, worked out that will be recommended for use for periodical examinations of field sprayers in Latvia. It is recommended te determine the accuracy of the following parameters during the periodical examinations of field sprayers in Latvia - nozzles cross distribution, pump pulsation, pump flow volume, controls manometer, as well as the numerical values of controls pressure obtained by measurements. It is recommended to determine visually the other parameters of the units of field sprayers such as- drive, pump, tank, pipe system, spray boom and nozzles.