Balance of heavy metals in the topsoil describes their content at admission and take-out for a specific period of time. Sources of heavy metals in the soil are their admission with atmospheric precipitation, sowing material, dust, organic and mineral fertilizers, as well as other components. Take-out of elements from the soil is taken into account with a crop (grain yield of green mass, roots, etc.), as well as with the removal of water and wind erosion
The article proposes a system of regression equations for estimating industrial wood size by categories and varieties of commercial trunks of oak plantations in the Lower Volga region. The authors developed a table of logs for the taxation of trees and forest stands of oak
Study results of Crambe maritima L. growth and development at introduction in Botanical garden of SFU are presented in article. It was revealed that the life cycle of majority specimens lasts three years. Results the ontogenetic and phenologic studies testify about success of primary introduction of Crambe maritima
Application of a factorial method for determining the needs in metabolic protein and essential amino acids, helps to deepen knowledge on physiology of protein and amino acid supply and allow to improve the standards for dairy cows during the transition period; in insufficient of metabolic protein and essential amino acids increased coefficients of their transformation into net protein and absorptive amino acids as a result of mobilization of body of cows; with an optimal protein nutrition their transformation in net milk protein, lysine and methionine accordingly amounted to 0.67, 0,83 and 0,82. The most significant changes in the concentration of methionine, proline, glutamate, glutamine, glycine were observed in cows before calving and immediately after birth, stabilization of their level starts with a 24 lactation day, that is connected with the peculiarities of the feeding behavior of the cows and the gradual intensification of the processes of metabolism and milk production. To control the status of protein metabolism we have offered benchmarks compositions of free amino acids in cows’ blood plasma phases: 21-0 days before calving, 0-21 and 22-120 days after calving
In the given work there is information about peculiarities of distribution and phytocenotic placement of the endemic of Dagestan flora Helianthemum daghestanicum Rupr. Twenty five
locations of the species are detected and four of them are new ones. Altitude levels of its spreading are defined more accurately – 350 – 1750 m. It is notified that basic types of vegetation, where Sunrose Dagestanian can be met, are communities of mountainous xerophytes and mountain steppes with domination of Botriochloa ischaemum and Salvia canescens
The most important results of applying the composition of the matter which has antidote functions furolan and methionin against the herbiside 2,4-D are reviewed in this article
In this article we have shown the results of studying of biologically active connections in bentonite clays, carotene containing raw materials for the purpose of receiving functional feed additive for agricultural birds
The article presents the results of a study of biologically active compounds in the seeds of pumpkins of different varieties released in the Krasnodar region
The article presents the results of canning of plant raw materials with natural bischofite and uterine acido-lactic bacteria
In the article, with a descriptive method and a method of analysis and synthesis, we have conducted a study of species diversity of Lagenaria on the basis of a miniature sculpture of netsuke. In Japan and China, in the period from the 17th to the 20th century, the most common was 9 species. The biological peculiarities of
some rare species of lagenaria has been described