The article results the study of irrigation regime im-pact on water consumption and yield of grain sor-ghum. It is established that optimal conditions for growth and development are created by maintaining soil moisture content in a soil layer of 0.6 m higher than 80 % of field capacity (FC), where the grain yield reaches 14 t/ha and the best indices of profit and cost-effectiveness are obtained
The article presents a comprehensive analysis of the components of the landscape square “Severny” in Voronezh; floristic, ecological, sanitary and hygienic and recreation assessment is given
Description of nitrogen stock for black soils of southern and eastern European facies is given in the article. It is ascertained, that the black soil subtypes in the South of Russia have low content of mineral nitrogen (0,4-4,2%) and easily hydrolysable one (6,0-8,3), two times more than that of hard-to- hydrolyze nitrogen (13,4-16,4%), while the main part of nitrogen stock (74,4-78,9%) is found in unhydrolyzable fraction which practically does not participate in farm crop nutrition
On the basis of the data gathered from various districts of Medial Siberia it is mounted, that at trees of the Siberian fir (Abies sibirica) for associations d1.3 =f (dп) and dп =f (d1.3) a build-up of the uniform normative (even at level of a wood band) leads to the significant magnitude of errors, but can be used at study of blanket regularities
The article reviews the results of studies on the effect of treatment of seeds before sowing currents of very high frequency (UHF) in a laboratory setting, "Khazar-2P on crop yield and seed quality spring barley Priazovsky 9 varieties
The grape variety with colored pulp and juice named “Professor Davids” was selected in Greece by P.Zamanidy, L.Troshin and A.Isachkin in 2003 with crossing of the Greek varieties of “Mandilaria” with the French introducent of “Alicant Bushe”. The duration of the production period is 156-165 days. Variety is full-grown. The degree of maturation of the vines is high. Crop yields are very high. The average mass of clusters is 300 gr. Has a high winter hardiness, drought-resistance and high resistance to fungal diseases in comparison with industrial varieties of Vitis vinifera. The female flower, with the stamens. The bunch of average size, cylindroconical, medium density. Berries are medium, round, blue-black in color, with a thick wax coating. The skin is thick, dense. The pulp and juice are intensively painted, with varietal flavour. Sugar content is very high. Notable for long preservation of the harvest in the bushes. The variety is suitable for making intensively painted dry red wines of superior class and high-quality dessert wines and unique juices. Due to its morpho- physiological characteristics it has been included in the eco-geographic group of varieties of the Black sea basin
Complex actions are created for the improvement of soil conditions in cultivating of young plants of stone crops with application of organic and mineral substratum. Economic factors and efficiency of tested actions are reviewed
In the article the results of the influence of various types of hybrids and their variants of sterilization on efficiency of sugar beets are shown, and also their economic estimation is given
Decreasing of noise level depending on park plantings structure parameters is reviewed in this article. The connection between noise level and these parameters is shown. Equation allows calculating its decreasing at the stages of park designing and reconstruction is revealed
The article deals with theoretical and practical aspects of fighting weeds