Биологические и сельскохозяйственные науки

Anthropogenic influence of agricultural activity in the Russian region of Lake Peipus

Submitted by red on Wed, 27/12/2017 - 12:47

The article presents the results of the research conducted by the State Agricultural Academy of Velikie Luki on the order of the Pskov oblast public organization Chudskoy proekt. The ecological state of land, forest and water bodies in the regions of the Russian Lake Peipus region has been analyzed. The data regarding the interrelation between the agricultural production level and the environment quality have been classified.

Biochemical composition of highly productive cows blood in lactation phases

Submitted by red on Wed, 27/12/2017 - 12:47

The article presents results of the study on biochemical blood composition in highly productive cows taking into account the lactation period.

Species composition and the influence of insects-pollinators on crops of sinapis alba

Submitted by red on Wed, 27/12/2017 - 12:47

There are identified insects-pollinators, belonging to the orders Hymenoptera (7 species), Diptera (7 species) and Lepidoptera (1 species), on seed crops of white mustard (Sinapis alba) on sod-weakly podzolic soil. It is established sufficiently high utility of pollinators, increasing seed yield by 31,8 %.

Peculiarities of winter crops productional process depending on conditions of main soil processing and mineral nutrition

Submitted by red on Wed, 27/12/2017 - 12:47

As a result of comprehensive studies conducted in the Tver region, on sod-medium sandy loam well cultivated soil peculiarities of yield formation of winter crops (wheat, rye, triticale) under the influence of different methods of main tillage and backgrounds of mineral nutrition are studied.

Fertilizer mixtures with wastewater sludge on sod-podzolic soils

Submitted by red on Wed, 27/12/2017 - 12:47

The article presents the characteristics of mixtures based on wastewater sludge (WWS) and organic elements (sawdust, peat, straw). There is the fertilizers influence on nutritive regime of sod-podzolic soil, experimental crop yield (vetch-oat mixture and winter rye) and their quality.

The results of crossbreeding black-and-white cattle and the Holstein breed in the Vologda region

Submitted by red on Wed, 27/12/2017 - 12:47

The article presents the results of crossbreeding black-and-white cattle breed and the Holstein one: population and level of milk production change in holsteinized cattle. It has been found that increasing consanguinity of Holstein breed affects milk yield raising. Moreover, the fat and protein content in milk of different cows genotypes varies slightly. It has been proven that the crossbreeding of black-and-white cattle with the Holstein breed is effective.

Pages

Desk02 theme