The influence of reduced iron nanoparticles and its oxide Fe2O3 on the growth rate of Chlorella vulgaris IFR # S-111 added to the Tamiya nutrient medium is studied. In the range of concentration of additives 0-0,1 g/l (gram per litre) an oxide inhibited the growth of microalga already when its content in the environment 6,25*10-3 g/l. With the increase of reduced iron concentration in the first twenty-four hours in the whole range the growth of the cell concentration of microalga was observed. With a maximum iron concentration of 0,1 g/l the density of a chlorella exceeded the control for 70%, and in 48 hours for 150%. The microscopy hasn't shown morphological changes of a chlorella cells with addition of the nanoparticles to nutrient medium. Accelerated reproduction of the microalga cells became the result of the intensification of the photosynthetic processes, as indicated by the nature of the parameters of delayed fluorescence (DF) of chlorophyll and shapes of the induction curves. The maximum level of DF in all experimental samples after 24 hours of cultivation was significantly higher than the control, and photosynthetic activity increased with increasing concentration of nanoparticles. In 48 hours the maximum activity was observed at concentration of nano iron 0,0125 mg/l, then decreased. It shows that with an intensive growth of a chlorella the potential of nutrient medium was quicker exhausted that led to decrease in intensity of photosynthetic processes
The article deals with the problem of oil-contaminated
waste utilization. It has suggested the ways of
technological advancement taking into account the
principles of BAT. The analysis of the legal
framework for BAT in Russia and the EU is carried
out. The features of the state regulation in the field of
BAT and the main approaches to formation of a
complex of measures for transition to principles of
BAT are considered. It has described the innovative
approach to the development of waste treatment
technologies that are best and available from an
environmental and economic point of view. It has
identified limiting parameters affecting the efficiency
of waste utilization and the suitability for use as
secondary material resources, particularly in the
construction industry
At present, the cultivation of agricultural products is on a level where the growth of productivity and quality is only possible by using the latest achievements of science. Scientists have been developing elements of agro-technologies of complex applications of growth regulators, fungicides and fertilizers in growing winter wheat, providing a significant increase in productivity and quality of agricultural products, reduction of labor costs, energy and all kinds of resources, sustainable harvesting, even in the zone of risky agriculture. Plant growth regulators have multifunctional properties, which are expressed in the regulation of plant growth and development, and in increasing their resilience to adverse weather conditions and many diseases. However, despite the fact that there are many examples of extremely high economic efficiency of plant growth regulators, in terms of production and use of pesticides are much inferior. Retardants and defoliants are used more widely. However, low rates of regulators and elicitors, the ability to manage with their help the growth and development of plants; change the resistance of plants to various external factors determines their prospects. We propose to apply the "agrochemical cocktails." It will induce the systemic plant resistance to the whole growing season, which is not possible in the case of using only one of the fungicides and bactericides. It is necessary to take into account the features of the functioning of the immune system of plants and to develop technological methods of influence on the key stages of the immune response of plants
The article reflects influences of soil conditions on growing types of wood vegetation. The carried-out chemical analyses show quantity of chemical elements which have to arrive to the soil with tree waste, and also acidity of the soil
The influence is shown for the race of yeasts to the dynamics of the fermentation of grape must, the composition of organic acids and aromatic of components. The races, which ensure obtaining high-quality winemakings material are presented
The optimum combination of quantitative and qualitative
relationships between structures of organic and mineral wastes of various industries provides the formation of compound composts, which improves its physical, chemical and biological properties of the soil, helps conserve macro- and micronutrients, organic
matter, enhance ecological niches system, to ensure the
development of ecological trophic groups of microorganisms
In the model experiments we studied the effect of combined action of chemical pollutants (PbO 1,000 mg / kg oil 5% by weight of soil) and microwave radiation (SHF radiation) with a capacity of 450 and 800 W (duration 1 minute) on the enzymatic activity, the number of microorganisms and indicators of phytotoxicity of an ordinary black soil. We found that the combined effect is systemic, rather than a simple summation of the effects of individual pollutants, shown no direct proportion between the power of the microwave radiation and its biological effect in the combined pollution
The article reflects the influences of the biogeohorizons on structure of oak plantings. It also shows biomass model of oak trees and its satellites in the studied areas
The article presents the results of the studies of the processing effect of the growth regulator called Stimolante 66f (Stimolant) on cuttings of Moldova grape variety as well as on the regenerative properties, yield and quality of seedlings. We have tested three concentrations of the preparation - 0.001; 0.01 and 0.1% as compared with heteroauxin treatment (standard), and no treatment (control). The experiments have been conducted in the laboratory and in the field. In the lab experiment cuttings were rooted in the vessels with water, and in the field they were planted in open ground. Processing cuttings with heteroauxin led to a delay in blooming of the buds of 0.4 days, and with Stimolante - to acceleration of the process to 0.3-0.8 days. Processing cuttings with heteroauxin and with Stimolante at 0.01 and 0.1% had an inhibitory effect on the growth of shoots, which survived until the end of the experience. Using Stimolante at 0.01 and 0.1% resulted in a stimulation of rooting cuttings and increased the output by 3 or more roots. Heteroauxin stimulated rooting only in the initial period. More roots formed on cuttings processed by heteroauxin and Stimolante at the minimum concentration of the drug, i.e. 0.001%. In the open ground, the best results for the yield and the quality of the seedlings were obtained with concentration of 0.1% of Stimolante. Heteroauxin showed worse results than Stimolante in optimum concentrations like in the rooting of cuttings on the water as in the open ground
The characteristics of meadow-wood typical soils, located on territory of lowland of Tersko-Sulaksk and Hunzahsk mountain area of Dagestan are given. Results of research of the contents of vitamin C (an ascorbic acid), P-active connections and mineral substances of iodine, manganese, copper and zinc in the hips, growing on above-stated ground are resulted. The received data testify that the meadow-wood ground of Tersko-Sulaksk lowland promotes accumulation of iodine in a dog rose, and the similar mountain ground in a greater measure influences synthesis of vitamins and the contents in hips of mineral substances. The value researched biochemical connections for a human’s organism of the person, the is shown and the comparative estimation of their structure in a dog rose growing on meadow-wood grounds, being on various heights above sea level is given