Name
Gaydukova Nina Georgiyevna
Scholastic degree
•
Academic rank
associated professor
Honorary rank
—
Organization, job position
Kuban State Agrarian University
Web site url
—
Articles count: 6
The results of studying of the maintenance of lead and cadmium in soil and agricultural crops at use of various agrotechnologies are presented in the article. The negative tendency of accumulation of heavy metals in winter wheat grain is noted
In this article the influence of agrotechnologies of cultivation of field cultures on soil indicators and distribu-tion of heavy metals on the horizons of the black leached soil is considered. Regularities of distribution of gross and mobile forms of manganese, zinc, lead, cobalt, copper and cadmium on the genetic horizons of the black leached soil of the Azov-Kuban lowland are revealed
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
In the article we consider the influence of agricultural
technologies of cultivation of winter crops on
existence of various forms of heavy metals in an arable
layer of earth in the conditions and their accumulation
in grain production. The gross content of compounds
of copper in an arable layer of black leached soil is
above background values (maximum concentration
limit 1,5-1,7), a share of the fixed connections makes
75 %. The gross content of zinc exceeds background
value for chernozems (1,25 clark). The correlation of
the water mode of the soil and the content of mobile
compounds of heavy metals in an arable layer - a
straight line for Cu and the return for Mn , Pb, Cd and
Co. Supplement of an arable layer of earth with mobile
forms of copper, zinc and cobalt low, manganese -
corresponds to the average level. Speaking of the
degree of actual mobility the studied elements settle
down in sequence: Cd> Mn> Co> Pb> Zn> Cu.
Degree of potential availability decreases among:
Zn> Mn>Pb> Co> Cu. The existence of Mn,
Cu, Zn and Co in grain of wheat is lower than
maximum concentration limit, and accumulation of
Pb and Cd is higher than maximum concentration limit
in grain production for baby food for 10-15 %, that
increases individual risk of death to the maximum
permissible level