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The main purpose of the topic is to research ecological indices resulting from the analysis of zoo-benthos communities in order to use them combined as a method of diagnosing the water quality of the Bega River in the area of Timisoara. A major importance in achieving the strategy of conserving the biodiversity of benthic habitats is the study of benthos, especially for understanding the changes that occur in the qualitative parameters of zoo-benthic communities, but also their habitats under the influence of different types of anthropogenic pressures. The present study started in February 2014 and took place over a period of two years in which quantitative samples of benthos were taken seasonally. By locating the sampling stations at various representative points of the Bega River, upstream and downstream of the central area of Timisoara, it was possible to conduct a general analysis and investigation of benthic macro invertebrates communities. [ABSTRACT FROM AUTHOR]

The research carried out refers to a study of 460 individual birdsfoot trefoil (Lotus corniculatus L.) plants in order to show relations between the cultivated seeds size and the weight of the root system, on one hand, and between the radicular system and the nodosity formation capacity of the root system (number and weight), on the other hand. The results obtained have revealed the existence of direct positive relations between these properties of the birdsfoot trefoil plants. The magnitude of these attributes values is determined by the size of the seeds used for sowing. [ABSTRACT FROM AUTHOR]

Italian ryegrass (Lolium multiflorum) is a known grass for its high production capacity and feed quality under nitrogen fertilization. Optimizing fertilization can be achieved by applying the associated culture system (mixture) of Italian ryegrass with crimson clover (Trifolium incarnatum). As a result of the studies carried out, in the variant with the sowing proportion of these two species of 50:50 (%), the average production of dry matter in the fertilized variant with N100 was 8.01 t/ha, and the average proportion of crimson clover participation in the floral composition of the mixture was 30%. [ABSTRACT FROM AUTHOR]