The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A reliable and sensitive liquid chromatography-electrospray ionisation tandem mass spectrometry analytical method has been developed for the determination of lincomycin in honey samples. After extraction with phosphate buffer by ultrasound, the extracted solution was subjected to the polymeric solid-phase extraction cartridge to remove endogenous compounds. The analysis was carried out on a triple-quadropule...
An improved liquid chromatography-fluorescence detection method for the determination of seven sulfonamides in bee honey was proposed. The method is selective and robust enough for the required purposes. The whole procedure was validated in accordance with the Commission Decision 657/2002/EC. Detection capabilities were from 26.15 to 49.50 µg/kg, and recoveries ranged from 32.8% to 116.1%, depending...
More than 800 rhizobacterial strains were isolated from winter wheat “rhizosphere” (the soil tightly adhering to the roots), “rhizoplane” (the root surface) and “endorhiza” (the interior of the roots) at different plant growth stages (two leaves, four leaves, flowering and full maturity). The data obtained clearly show that the proportion of motile strains gradually increased from “rhizosphere”, through...
In this paper we report on comparison of microbial and biochemical properties of a loamy-sandy soil that 10 years earlier had been treated for 17 years with different rates of slurry or mineral fertilizers. Long-term fertilization of the soil with different doses of cattle slurry significantly improved microbial (biomass, respiration, numbers), biochemical (activity of dehydrogenase and phosphatases)...
Studies on the comparison of microbial and biochemical characteristics of soils were based on a field experiment established in 1994 at the IUNG Experimental Station in Osiny on soil (loamy sand) belonging to complex IV. In this experiment spring barley and winter wheat were grown in three crop production systems: ecological, integrated and conventional. Soil under wheat were analysed in 1996, 1997...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.