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The human settlements in the Glavacioc river basin located in southern Romania are predominantly rural, the inhabitants occupied with agriculture and animal husbandry. The lack of proper facilities, legislative gaps, insufficient or non-existent control of environmental authorities, poor education regarding environmental protection, led to improper disposal of animal and household waste, permanent sources of soil and groundwater pollution in the area. Among the emitted pollutants the most dangerous are nitrates th...

The effect of a polycomposite compost consisting of three organic waste (farmyard manure, sewage sludge, and marine algae) on the nutrition and seed production of the sunflower cultivated in a field experience on a Chernozems in the southeastern part of Romania, was investigated for 2 years. Three types of compost were made from different mixtures of the three components added in proportions by 25% or 50% so that each compost was prevalent in one of them. Agro-chemical analyses of soil samples (pH and N-NO3, N-NH4...

Within an expeditionary study, conducted in the south-eastern part of the Romanian Plain and central and southern Dobrogea, soil samples (0-20 cm) under the maize during the growing phase of 4-7 pairs of leaves, have been collected. The investigation methodology included three methods: determining the soil content of mobile Zn, soluble in CH3COONH4-EDTA solution at pH 7, calculating the values of the reaction-mobile phosphates index (RMPI) and of the zinc deficiency index (ZnDI), in order to establish the probabil...