The article is devoted to the various elements of the cultivation technology of winter wheat called Antonina with the application of different soil fertility backgrounds, fertilizer norms, and plant protection systems against weeds, pests and diseases. Investigations are carried out in a multivariate stationary experiment: factor ‘A’- soil fertility; factor ‘B’ - fertilizer system; factor ‘C’ - the system of plants protection; factor ‘D’ - the main methods of soil tillage. Four models of soil fertility levels were studied in the experiment: А0 - initial (natural background); А1 - medium (200 kg / ha Р2О5 and 200 t / ha of solid manure); А2 - high (double dose); at А3 - high (tripled) on three backgrounds of basic soil tillage: nonmoldboard, recommended, moldboard with deep bursting and without the application of tillage (direct seeding and the natural rate of soil fertility). The soil is heavy leached black humus with humus content in the arable layer of 2.5% - 2.9%. Based on examined researches it was found that for the sustainable yield of winter wheat the dose of mineral fertilizers should be increased, by that, the high quality of the grain is provided
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
We have conducted a research on the poultry farm of
the commodity farm of the educational and
experimental farm Kuban of the Kuban State Agrarian
University. The chemical analysis of various organic
fertilizers is considered in the article. Also
agrochemical characteristics of organic fertilizers are
given. The composition and properties of the bird
droppings of the farm under study were determined for
comparison with other organic fertilizers: manure of
cattle and pig manure. Since straw is used as the main
moisture-absorbing material for composting in the
farm under study, straw analyzes were carried out in
terms of chemical composition and nutritional content.
A chemical analysis of the content of plant nutrients in
straw has been carried out. Bird droppings is valuable,
a fast full fertilizer. Of all organic fertilizers, bird
droppings are the most valuable, both in nutrient
content and in their accessibility to plants. The nutrient
content in the litter varies depending on the species of
the bird, the breed, the age, the method of keeping and
feeding, the type of feed and other factors. The
chicken manure contains morephosphorus, nitrogen and
potassium, than manure of cattle and pigs. The advantage
of organic fertilizers in comparison with mineral
fertilizers is their long after-effect. As fertilizer a bird
droppings surpasses manure at 8-10 times and almost
don't concede to equal amount of nutrients of mineral
fertilizers by action on productivity of cultures. The norm
of introduction of bird droppings is up to 30 times lower,
than norm of introduction of manure. Agricultural areas
where introduction of organic fertilizers, the list of crops
under which fertilizers are introduced were considered.
The received results confirm the value of organic
fertilizers (bird droppings), and their application enriches
the soil with necessary nutrients, increases productivity
and quality of grown-up crops
At present, the farmers have to develop varieties and
hybrids, which fully meet the requirements of
agricultural production. The study of correlation among
economic-valuable characteristics of grain sorghum is of
great importance nowadays, as it allows optimizing
plant-breeding work at its early stages. For a more
productive process of developing of the initial material in
breeding, it is necessary to determine the correlation
among the traits to identify the strongest connections,
and to conduct further work, based on the obtained data.
Knowing the correlation, the estimation of timeconsuming
economic trait can be replaced by the
assessment of the simpler trait correlated with it. The
article presents the analysis of correlation among various
traits of grain sorghum. The degree and direction of the
correlation have been estimated. The significant effect of
the length of vegetation period on many traits has been
seen. There have been also mentioned the characteristics,
having an influence on a size and a number of kernels
per panicle. There is a positive correlation between a size
of panicle and dimensions of a leaf (length, width).
Along with it there has been found a positive correlation
among linier dimensions of a panicle, length and width
of a leaf, a number of leaves with a number of kernels
per panicle. While studying the correlation between an
extension of a panicle with other traits, there has been
noted a negative correlation between a length of
vegetation period, length and width of a leaf, but there
has been found a positive correlation with plant height. There has been found a positive effect of 1000-kernel
weight, a number of kernels per panicle, a number of
leaves and their dimensions on the formation of kernel
weight per panicle
The influence of the predecessor and different doses of mineral fertilizers on the yield and the quality of the winter wheat cultivar ‘Krasnodar 99’ were investigated. Investigations were carried out in the North-Kuban Agricultural Experiment Station in two ten- course crop-rotations: grain plowing and grain - grass plowing (stationary experience). The soil is the black soil, low in humus, powerful, with humus content 3,95-4,00%, depending on the nutrition in the arable soil layer (0-30sm), mineral nitrogen is 5,9-8,3 mg / kg of soil, exchangeable potassium is 330-360 mg / kg of soil. It was found that the maximum value of the winter wheat crop structure elements is noticed in the fertilizer systems with complete mineral fertilizer, and the minimum value - with PK and NK. Winter wheat yield depends on the crop rotation of 8-15%; from its predecessor - 15-18% and 27-31% of the fertilizer. The protein content was mainly determined by the fertilizer dose. Enhanced and high doses of fertilizers contributed to an increase in the protein content to 12%.A strong correlation between protein content, agronomic methods and precipitation was determined
Tasting and smoking properties of tobacco products
depend on chemical composition of dried tobacco. The
most important are nicotine, carbohydrates, and
proteins. Their content is controlled when new sorts
are bred. In the article data on chemical composition
and their analysis for some hybrids, new and zoned
sorts are presented. Most of studied samples had
medium nicotine content in dried tobacco. Hybrid of
Jubileiniy noviy 142 and Ostrolist 46, sorts: Trapezond
159, 359, 115 and Ostrolist 46 were characterized as
low nicotine tobaccos. Jubileiniy (standard) and
Oktiabrskii were characterized as high nicotine
tobaccos. This indicator depends on rain quantity
during vegetation period. During drought seasons this
indicator is higher. Total soluble carbohydrates content
affects smoke taste. The more water soluble
carbohydrates content the better smoking properties
tobacco has. Unlike nicotine, carbohydrates content
when rainy season increases. Best results were for
Krupnolistniy 9M and Oktiabrskii. Proteins have
negative effect on smoke taste as it becomes bitter and
with smell of burned feathers. Most of studied hybrids
have quite high protein content. For cured tobacco
quality assessment, not total contents of proteins and
carbohydrates are important but their ratio
(carbohydrates/proteins) called Shmuk ratio. Best
results were for Krupnolistniy 9M and Oktiabrskii
Development of confectionery sunflower openpollinated
varieties (OP-varieties) is a prospect
direction in sunflower breeding. High price level for
confectionery sunflower seeds pushes forward the
breeding program. The aim of our work is to study
dependence of main valuable confectionery seed
characteristics from plant density and to identify
sunflower samples, which decrease seed size at
minimum level under high plant density. The study
was done at All-Russia Oil Crops Research Institute
(VNIIMK) named by V.S. Pustovoit (Krasnodar) in
2015 and 2016. Seeds of different biotypes of OP
sunflower variety called Dzhinn were used as a
material. Samples were sown with 2 replications.
Every plot had 1 row. The highest yield of OP variety
Dzhinn was obtain under plant density 60 000 plants
per ha. 1000-seeds weight decreased with increasing
plant density up to 60 000 plants per ha. Prospect for
future breeding samples were identified which not
decrease the level of valuable traits under higher plant
density
Basic aim of institute’s breeding is to keep, renew and
increase selection and genetic resources of Nicotiana
tabacum. Final stages of this work are competitive and
state sort testing procedures. Their results are base for
zoning new sorts. In the article, the results on testing 8
new tobacco sorts of Trapezond and Ostrolist sort type
are presented. Testing on experimental field situated in
Severskii district of the Krasnodar region lasted for
five years. For this purpose, phenological observations,
biometric and technological properties measuring,
plant productivity and dried tobacco quality
assessments and other operations were carried. As the
result, Trapezond 25, Ostrolist 360 and Sheptalskii 63
sorts may be recommended for zoning and utilizing in
industry. Trapezond 25 and Sheptalskii 63 are sorts
with high productivity, high quality of dried tobacco
and good curing properties. Ostrolist 360 when earlymiddle
maturing keeps high productivity and quality of
cured tobacco. Other sorts: Trapezond 115, Ostrolist
311, Ostrolist 149, Ostrolist 90, Krupnolistniy 22 can
be initial material for further selection
The article analyzes the experience of zoning of
territory of the Bryansk region on the main factors of
erosion to select the measures to combat it. The
Bryansk region in its present borders, mainly
representing the middle course of the Desna river, has
been considered safe in relation to erosion. The
existing zoning is based on the quantitative
characteristics of the processes of erosion that
primarily allowed us to assess the scale of their impact
on nature and the region's economy. The erosion
zoning was performed on the basis of the map of
erosion-prone land. As a result of study and analysis of
all natural factors of erosion and land of the region
under study the regularities of distribution of land
erosion and intensity of spring rainfall and soil erosion
are detected. Under the leadership of Filin V. I., a
survey of the ravines of the region was conducted and
made the scheme of erosion zoning, according to
which the region is divided into three areas. It is
noteworthy Horinas E. V. research. When divided into
areas it was taken into consideration the need for each
of them specific actions to combat the causes and
consequences of erosion in relation to the peculiarities
of the latter in each district. According to the intensity
of the erosion processes and physico-geographical
zoning of the Bryansk region and the nature of
agricultural land use, specialists of the Bryansk branch
of the Institute "Rosgiprozem" produced erosion
zoning of the territory of the region, which highlighted
seven erosion regions. From the variety of methods for
zoning, the most appropriate in our view are created,
based on the estimated small-scale (medium-scale)
maps of erosion of land, capable of performing the
function diagrams of erosion zoning
Hybridization was performed for nine hybrid
combinations between Russian early-ripening varieties
Novator and Serpantin and South Korean cold-tolerant
introduced samples Odaebueo и Tinbubueo. As a
result, 283 hybrid caryopses in eight combinations
were obtained, which were later studied in growing
conditions. Study of trait inheritance in F1 hybrids was
conducted, heterosis effect of studied hybrid
populations was determined by productivity and
individual elements of yield structure, using indicators
of the degree of phenotypic dominance (hp) of
quantitative traits. Significant variability in agronomic
traits of F1 hybrids was determined. The manifestation
of heterosis in productivity was noted in combination
Odaebueo / Tinbubueo, in which super dominance was
observed by all the studied traits forming productivity,
in the hybrid progeny. Using the "halves method",
analysis for cold resistance of 227 F2 plants in eight
hybrid populations was performed. Seven lines with
increased resistance to low positive temperatures
during germination were identified in five hybrid
combinations, which is 3% of the studied material. It
is shown that in breeding for cold resistance as mother
plants in hybridization it is necessary to use rice
varieties (samples) that are resistant to low positive
temperatures during germination, and as paternal -
more productive varieties, adapted to soil and climatic
conditions of rice growing area of the Krasnodar
Region