In the article, we have studied the effect of antibiotics on enzyme’s activity of black soil. Introduction of the high doses (600 mg/kg) of antibiotics benzylpenicillin, nystatin) leads to considerable decrease in enzyme’s activity of soils. The class of hydrolyses is most sensi-tive to the action of antibiotics, their activity decreases for 50-70% from control values, the class of oxidore-ductase is least sensitive (10-40%). Antibiotic’s action on enzyme’s pool of soils has the prolonged character
Under conditions of vegetation experiment at soil artificial chloride salinization the dynamics of accumulation and distribution of sodium, potassium and calcium in organs of rice plants (Oryza sativa L.) have been studied, as well as their correlation with tissue hydration in ontogenesis. The significant restriction of salinization ions transport and accumulation, particularly sodium, in the actively functioning upper leaves and panicles has been observed. Whereas the content of calcium and potassium in the experimental and control plants differed slightly
Remineralization of leached chernozem was carried
out by applying such rocks as loess-like loam, shell
limestone, apatite phosphogypsum. We have
revealed that the introduction of species didn’t
change substantially the content of boron during the
growing season. We have also displayed the seasonal
dynamics of macro variants of the experiment and
the increase in the content of food items in the phase
of active growth of winter wheat. Seasonal dynamics
of trace elements is expressed, but can not be
expressed with certain regularity
In the article there were given the results of researches
for 20110–2012 obtained of many years stationary
experience of the chair of general and irrigated land
management of Kuban State Agrarian University on
study of main soil treatment influence and doses of
mineral fertilizers under soy beans on dynamics of
moisture in soil and efficiency of its use by this cultivar.
There was determined that from all studied variants
the ploughing on 20–22 cm led to the higher accumulation
of moisture for autumn-winter period. The
decrease of productive moisture reserves on 6-9 % was
observed on the types with surface treatment and direct
sowing. The increase of soil treatment depth and doses
of mineral fertilizers promoted to the better accessibility
of moisture during vegetation period and correspondently
to their greater expenses. Moreover, there
was revealed the more rational use of water by soy
beans under mouldboard soil treatment and introduction
of mineral fertilizers in the dose of N90P120, it discovers
the high effectiveness of present agricultural
methods. The highest productivity of soy beans in the
experience was achieved by means of ploughing on
20–22 cm and introduction of mineral fertilizers as a
main type of soil treatment
The article contains dynamics of selective and continuous cutting in oak forest of Russian European part at the last 50 years and analyzes their pathological effectiveness
The results of variety-stock combination of Russian plum and cherry plum with clone stocks are cited. We will select the more productive and early fruiting va-riety- stock combinations: Globus Kuban 86. These variety – stock combinations in the age of trees – 4 years allow us to get a crop productivity of 10- 28 tg
From 2011 to 2015 in the laboratory conditions there
were studied the physical properties of absorbents in the
controlled environment. There was defined that in the
variant of the "soil+water" the usual colloidal mass is
formed and in variants "soil+absorbents+water" - a
mixture of soil and gel. There was determined that the
least diurnal evaporation was fixed at the use of the
mixture: soil+ preparation “Ecogel-1”. In the control
variant of the experiment the full water evaporation was
marked on 31st day after beginning of the experiment, in
the variant with the use of the absorbent Aqua Life the
whole water evaporated on 48th day, and at the use of
preparations Ecogel-1 and Ecogel-2 the duration of
evaporation of the same amount of water supply at
temperature 22-24оС and air moisture in 55-60%
continued 57-65 days. In the result of five-year
laboratory researches there was determined the
possibility of development of water-saving technology
for fruit plantations. When we used absorbents
(granules, powders) in planting process and watering
resulting the gel-like mass completely collapses the root
system of fruit plants and the operation of the system
"soil-roots-leaves" will not depend on the physical
condition of soil and environment due to water
consumption for transpiration
Ecological and silvicultural characteristics of Black (European) Alder plantations, situated in river valleys of Sochi national park are given. Regeneration nature and soil conditions of growth are adduced
The proposed agro technology for the cultivation of
soft winter wheat contributes to the reproduction of
fertility of leached Chernozem of the Western
Ciscaucasia. As a result of application of fertilizers in
the arable layer of soil hydrolytic acidity decreased by
21.8%, humus content increased by 10.3%, mobile
phosphorus - by 54.8%, mineral nitrogen by 10.3%
and potassium - by 9.6% compared to the control.
Studied agricultural technology allowed to increase the
yield of winter wheat to 81.8 kg/ha and protein to 15.3
per cent, of gluten, to 27.8%. We have noticed
exceeded concentration of mobile phosphorus in the
upper soil horizon (1.5 MРС) in the cultivation of
wheat after alfalfa, which contributed to reduced grain
yield. Under conditions of prolonged application of
fertilizers and pesticides reduced the content of mobile
forms of trace elements - copper and zinc. The content
of mobile forms of Mn, Cu, Zn, Cr, Ni, Co, Pb and Cd
below the limit values of environmental and
Toxicological regulations clayey and loamy soils for
agricultural purposes. The trend of accumulation of
cadmium in the green mass of plants (~ 1.2 MPC) and
winter wheat grain up to 1.5 MPC for baby food
As a result of stepped hybridization and multiple replicated screening, the new rice variety Lider was received. The peculiarities of the new variety is a quick growth of plants at a sprouting – tillering stage. It gives the possibility to obtain sprouts from water lower than 20-25 cm which kills for Echinochloa. Lider is grown in Russia without application of pesticides.