The results of researches of influence of different irrigation modes on productivity of cultures and efficiency of use of irrigating water at cultivation of potatoes, cabbages, onions, tomatoes and cucumbers in the conditions of an irrigation are resulted in the article
The results of studies on the influence of different backgrounds and agrochemical pre-sowing treatment with bishofit on the growth and development of sain-foin sand, winter hardiness and productivity of crops under irrigation on light chestnut soils of the Volga-Don interfluve are submitted
The article discusses the influence of conventional technology and the technology of direct seeding at different doses of mineral fertilizers on the growth, development, productivity and economic efficiency of winter wheat cultivation on the leached black soil of the Central Caucasus. It is established that the cultivation of winter wheat without tillage its vegetative mass, leaf area and the efficiency of the assimilation apparatus is significantly less than for sowing the traditional tillage technology recommended by scientific institutions in the region. It is caused by excessive seal of leached black soil, which was used in the study. Such a density of addition of black soils adversely affects the growth, development and yield of crops. As a result, the yield of winter wheat on the technology of direct seeding without fertilizers was 2.46 t / ha, which was significantly lower than for conventional technology, which received 3.21 t / ha. Adding fertilizers increased crop yield for both technologies, but it was significantly higher on the traditional technology. Despite the decline in production costs for the cultivation of winter wheat without tillage, higher profits and profitability were obtained using traditional technology
Materials of studying the influence of crossing on the quality of meat are presented in the article
During the last century, in the biosphere occur expressed processes of soil degradation due to anthropogenic influence, which seriously change of top layer of soil. The agricultural landscape is allocated of noticeable accumulation of various wastes at expense of growing of food crops and grazing of farm animals, as well as due to mineral wastes generated in process production of building materials and fertilizers from natural raw. According to physical and chemical characteristics of wastes of plant origin and natural-raw wastes constitute a non-toxic highly dispersed connection with an admixture of different undecomposed organic and mineral substances. Specificity of physical state is determined there of high dispersion, which is represented by system particles of colloidal substances distributed in various environments. Colloids of natural-raw wastes are characterized by a low rate of diffusion; do not penetrate finely porous membrane of cell structures, different very nonequilibrium insolubility and specific chemical composition. For example, phosphogypsum is characterized by high concentration of sulfur and calcium, and trace amounts of entire table of D.I. Mendeleev. Organic wastes are made by variety of chemical compounds and high concentration of carbohydrates, proteins, fats and other organic substances
This article is concerned with the results of research
on influence of extra root treatment of seedings by physiologically active substances on productivity
and formation of winter wheat grain quality.
This article provides an overview of the impact of the Prorastina and the Polistina biologically active preparations on sorghum grain productivity on light-chestnut soils of Kalmykia
In order to reduce the impact of stress factors on the
body of pigs, new technologies and efficient
veterinary and preventive measures in breeding and
cultivation are being developed. The results of our
scientific and economic experiments found that the use
in daily diets of pregnant and lactating sows according
to our schemes of biological additives (to finish /
day.): Laktobifid (1 g), Immunobak (1 g), Provagen
(10 g ) Vetom 1.1 (50 mg / kg body weight), Bacell
(0.3% by weight of the feed) and Monosporin (10
mL), contributes to the improvement of their
reproductive qualities: for twins - on 2,2-12,2% by
krupnoplodnosti - by 8,0-10,7%, for milk - by 8,9-
36,5%, at the preservation of pigs - by 1,3-8,3%, by
weight of the nest 2 months of age - 22 , 9-38,9%
compared with the control. At weaning piglets from
sows experimental groups indicators of natural
resistance were significantly higher. The best
reproductive performance were observed in sows
treated with diet and probiotic supplements
Immunobak Bacell combined with Monosporin . The
results of these experiments revealed adaptogenic
properties of the studied additives, their ability to
mitigate the impacts of technological stresses,
reducing as a result of the cost of the products. Of
great practical importance is the ability to predict the
effectiveness of the use of additives which have antistress
effect, depending on the body weight of
animals, their age, frequency and duration of their
application before and after the impact of
technological stressors in the suckling period, the
periods of rearing and fattening up of live weight and
100 и 120 kg
In the article we present the results of the researches
on the study of the different systems of basic treatment
of soil on the plants of sunflower, as well as its
infestation by one-year and perennial weeds and its
productivity on usual black soils of the Krasnodar
region
Influence of level of soil fertility, norm of fertilizers, systems of plant protection and a way of basic soil cultivation on accumulation and a ratio of pigments in leaves of winter wheat Fortuna during spring-and-summer vegetation is shown