In the article we show the history of opening of selenium, its distribution in the nature, the value of this microcell in life of plants.
We also show the experience of russian and foreign scientists on studying of the influence of selenic fertilizers on a crop and quality of crops
The article provides a review of biological traits that could be useful for selection of the walnut in diverse conditions of its growth. The most important aspects of species biology are described as they are of primary importance for breeding programs in the countries with
walnut crops
The article represents the results of the experiments on biological activity of humits of different sorts. The object of research was humic preparation called Vermistar, which was obtained by vermiculturing, on the basis of brown coal. Humics are group of high-molecular substances which have high physiological activity. Humic substances stimulate all biochemical processes on all the stages of plant growth. They change the permeability of the cell membranes, increase activity of ferments, amount of chlorophyll and productivity of photosynthesis. Also humits are not toxic; they don’t have carcinogen and mutagenic effects, so we have a chance of getting environmentally friendly products. The experiment results show high biological activity of humic preparations. Usage of humic stimulates germination, the accumulation of vegetative mass, weight gain. The frequency of shoot has been increased by 17-32%. Height of shoots, roots and vegetative mass has also been increased
The work on the study of the biological assessment of environmentally safe herbal feed additives for quail has found in the supplement that contains the seeds of soybean varieties Valens, the bird had higher growth rates than in the supplement of soybean varieties Vila. Using as a protein-based supplement
autoclaved soybean Valens varieties increases the profitability of meat quails from 22.52 to 28.76%, and the economic effect when used - to 32.5 rubles per 1000 quails compared with the addition made from soybean of Vilan varieties
For the production of high quality winter wheat grain,
it is necessary to observe the technology of growing
the crop and creating optimal conditions for the growth
and development of plants. An important role in it is
played not only by agrotechnical measures, but also by
effective protection of crops from pests. The
phytosanitary state of winter wheat sowings has
worsened significantly in recent years, however, the
degree of damage to crops and the harmfulness of
fungal diseases can be significantly reduced, and in
some cases completely prevented by treatment of crops
with fungicides. The range of fungicides is improved
annually by incorporating more effective and less
environmentally hazardous preparations. The research is aimed at determining the optimal rates of
consumption, the biological effectiveness of new
fungicides and assessing their effect on the yield of
winter wheat. As a result, it has been established that
treatment with Abucus Ultra with a rate of 1.0 l / ha
has protective properties, but does not treat plants
(72.2%). This further leads to a loss of an average of
about 0.5 tons of grain per hectare. Fungicide Akanto
Plus in the investigated rates of consumption has good
protective and eradicating (healing) properties and
with a decrease in the rate of consumption of less loss
of yield. Thus, the choice of the preparation and its
consumption rate should be based on an understanding
of the phytosanitary situation, taking into account the
condition of crops and the agroclimatic situation
The economic-biological features influencing productivity of green weight and fodder value of grain are defined on the basis of researches of features of new grades of Turkestan millet
The behavior, interior and milk yield of the mature Black-and-White cows with various productivity levels, as well as etology of the replacement heifers are researched. The superiority of the high milk yielding cows for the lying duration and eating feed and water is revealed. Reduced variability of vital behavioral actions of animals is found. In addition, high yielding cows has been lower variability in all feeding acts. It was noted that high yielding animals exceeded equal age cows by the level of most interior factors. The differences were significant on the content of hemoglobin, vitamin E, and especially on the content of iron. Positive correlations between some interior design indicators is found. The analysis of lifetime productivity during our research found that high milk yielding cows had highest yields on the first lactation and kept the same level in the next lactations with insignificant variations. The lower productivity animals reached maximal yields on the third lactation with the followed downward trend. Differences between groups in lifetime productivity during research amounted to 16 992 kg. The significant superiority of the heifers with high grown intensity above equal age animals for the duration of feed and water eating, physiological functions and lying. The analysis of variation coefficient is confirmed the observed regularities.
The regularity that increases biological and enzymatic activity with increasing the age of the deposits of 10 to 82 years has been shown. The indicator of recovery of black leached soil steppes can be presented as invert-ase activity and humus content, as well as reducing the density of the soil. Integrated indicator of the biological properties decreases with decreasing age deposits: 82 years (100%) - 26 years (84%) - 16 and 10 years (74%) - arable land (64%)
Characteristic of financial-economic activity of agricultural enterprises and qualitative land condition is casted in the article. Arrangements connected with biologization of agricultural production are considered and assessment of its efficiency is given.
The polymorphism is the diversity of varieties in ampelografy - the presence simultaneous permanent in the population of two or several phenotypic and genotype differing groups of plants of one variety – i.e. clones. In viticulture the isogenic population is usually called “clone” and variety as the total of clones or forms – i.e. it is heterogenic. Polymorphism of varieties has big practical sense, as varieties-clones have the harmonic complementary adaptive ampelocenosis and higher economical effect for production. In the article the polymorphism of two heterogenic population - the group Pinot and Riesling, which are the best specimen of French and German viticulture is described on the phenotypic level of leaves