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The application of nitrogen fertilizers in the form of urea tends to increase acidity, especially on low pH soils, and as a result can lead to increased aluminum toxicity, which can adversely affect not only soil properties such as microbial activity, but also productivity. Application of different types of urea with inhibitors to reduce nitrogen losses would result in a different carbon response to fertilizers applications for the same soil type because of differences in soil micro-environment, including microbia...

Urtica dioica L. is a multi-functional plant commonly known as stinging nettle, which has been used as wild vegetable for centuries. Stinging nettle is a highly nutritious vegetable due to its increased use in different food products and its health-promoting properties. Nettles are highly adaptable occurring in most common areas from unpolluted to highly polluted areas, along stream banks, farmland and also in highly disturbed areas. In hot areas, they prefer sites in partial shade, but accept to grow also in full...

Honey, produced by honeybees (Apis mellifera) through nectar plants processing, has a distinct composition depending on the floral sources, regional and climatic conditions. Heavy metals in honey are of interest mainly for quality control and nutritional aspect along with the estimation of the potential environmental contamination. In order to estimate the impact of air pollution on the honey quality, the level of some selected heavy metals such as lead, cadmium, chromium, iron, zinc and manganese in honey was ass...