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W latach 2002-2004 przeprowadzono doświadczenie polowe metodą bloków losowanych z laserową stymulacją nasion lucerny siewnej (odmiany Legend) oraz lucerny mieszańcowej (odmiany Radius). Stosowano dwie dawki gęstości powierzchniowej mocy wiązki rozbieżnej światła lasera: 3 i 6 mW·cm⁻² (oznaczone jako R3 i R6). Ich efekt porównano z obiektem kontrolnym, nie napromieniowanym (0), oznaczonym jako R0....
Соответствующие исследования охватывали 5488 бычков урожденных в период 1972 - 1987 гг. и содержимых в центральных воспитательных станциях. Было выделено 6 генотипов животных. Исследовали появление определенной тенденции в остроте отбора и к величине селекционных разниц в зависимости от генотипа бычков, воспитательной станции и календарных лет. Установлено, что острота отбора и селекционные разницы...
The effect of the chemohardening surface lacquer coat thickness of 100 and 200 pm of the Plastlak type and of the cellulose-urethan coat thickness of the Celur type on gloss determined by the Gardner’s apparatus was estimated. It has been proved that the about 25 pm thick surface coat results in the 2-3-fold gloss increase. The increase of the surface coat thickness up to 75 pm in coatings of 100...
The respective investigations were carried out in 1981 - 1985 on the basis of long-term field experiments. The cereal monoculture: oats - rye - rye - rye, and the crop rotation: potatoes - rye - mixture of leguminous crops - rye, were compared. Microbiological investigations proved that monoculture caused a reduction of the number of proteolytic microorganisms and Azotobacter in the soil and an increase...
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