In the conditions of the Northern and Southern foothill zones of the Krasnodar Territory, the soil preparation Reasil® Soil conditioner was tested to study its effect on the water – physical properties and structural state of the chernozem of ordinary and alluvial meadow soils. Field and field experiments were conducted in the Northern Zone when maize was cultivated in irrigation. The preparation was applied before sowing by the spreader "Amazone" under pre-sowing cultivation (to a depth of 12 cm) at a dose of 400 kg / ha. In the South foothill zone, the experiment was conducted on a crop – a seedling tomato. The preparation was applied before planting seedlings in a dose of 200 kg / ha. It was established that the application of meliorant did not significantly change the density and total porosity in the arable and subsoil layers of alluvial meadow soil, which was 1,46–1,47 g / cm3 and 44,3–44,5 %, respectively, with practically no pores occupied air (porosity of aeration). However, the use of ameliorant on this soil contributed to an increase in the content of agronomically valuable aggregates in the arable and subsoil horizons, respectively, by 15,9 and 22 %, and the sum of waterproof aggregates by 8,4 and 1,5 %. In the northern zone, when maize was grown, it was established that the application of meliorant did not significantly change the soil density and total porosity in the arable and subsoil layers of the chernozem plain, where it amounted to 1,29–1,32 g/cm3 and 51,6–51,5 % at rather high aeration porosity. The meliorative method reduced the content of agronomically valuable aggregates in the arable layer of chernozem by 15,4 % and increased their quantity in the subsoil horizon (1,4 %). The number of waterproof aggregates increased on the variant with the use of ameliorant, respectively, by 19,9 and 2,8 %
A stress-strain state of landslide soil during interaction with piles has been considered. The dependences of the critical landslide pressures from soil non-squeezing condition have been given. It was established, that account of passive reaction of lower slope essentially increases resistance of construction against soil squeezing
For today, creation of the technologies, allowing lowering the cost price of manufacture of meat products, thus guaranteeing the consumer the same set of quality standards is very important. Due to biotechnology development, working out and introduction of the new technologies focused on an intensification of a complex of difficult biochemical transformations which proceed in meat raw materials by manufacture of sausage products became possible
In the article there were presented the results of the researches on study of influence of different forms of the Stimokor stimulator of growth (Stimikor, Stimokor sweet and Stimokor Plus) as in a pure type as in a tank mixture with Nutrivant Plus water-soluble
phosphorus-potassium fertilizer on agrobiological and technological indexes of Shardone grape. The most effect was obtained at the treatment of shrubs with Stimokor Sweet
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 article presents results of the six-year study of the
effect of stocks Berlandieri × Riparia Kober 5BB and
Chasselas × Berlandieri 41B on yield, quality of
grapes and wine Rkatsiteli in the central zone of the
Krasnodar region. Effect of stock on the scion strongly
depends on the annual weather conditions. In a given
year, there is a stock, better adapted to the weather
conditions. Stocks of Chasselas × Berlandieri 41B
increases winter hardiness variety Rkatsiteli. On
average, during six years the stocks have not been
resulted in significant difference between the
percentages of developed into shoots buds and fertile
shoots shown in the coefficients of fruiting and
fruitbearing shoots Rkatsiteli. Among all the
influencing factors, the degree of influence of stocks is
0.1-0.4%. Some differences in forming of generative
organs of wintering buds along the fruiting twig under
the influence of stocks do not lead to significant
differences in biological terms of fruiting varieties in
the whole piece. On average, six years of significant
difference in the effect of stocks on the average weight
of the bunches, and the yield is not defined - the
degree of influence of rootstocks on mentioned
indicators is 0,1-2,1%. A significant impact of stocks
on the dynamics of sugar accumulation in berries has
not been discovered. The degree of influence of
stocks on to the final sugar content and acidity of
berries is 0.3 and 14.5%, respectively. The wine
produced from Rkatsiteli berries on a stock Berlandieri
× Riparia Kober 5BB has the better tasting score than
on the stock Chasselas × Berlandieri 41B (7.5 and 7.4
points, respectively). The main influence on fruiting of
the variety Rkatsiteli was provided by the conditions
of the current and previous vegetation. Within the
conditions of the central zone of the Krasnodar region
the cultivating of the variety Rkatsiteli is reasonable
for both studied stocks
A model is developed for stress-dependent surface generation and recombination of point defects in silicon. Using the model, such phenomena as stacking fault growth and stress-mediated dopant diffusion in silicon are simulated
The results of researching conditions of agro physical properties of leached black soil and crop yield of soy bean subject to system of fertilizers on minimal tillage, is reviewed in this article
Experimental data on research of influence of
technological parameters on structure and durability at
compression of the modified fine-grained concrete are
presented in the article. It is shown, that at the
optimum maintenance of a mineral additive as a part of
the mixed knitting the optimum capillary and porous
structure of a cement stone and the increased volume
of hydrate new growths is formed. At the raised
volume maintenance of an active mineral additive
there is a formation of the non-optimal capillary and
porous structure of a stone leading to decrease in
efficiency of modifying
The results of research of strength characteristics for fiber-porous bio composites are presented. Based on phenomenological models, the influence of the strain velocity with anisotropy on toughness of the material is obtained by different technological operations