The paper demonstrates the results of systematization and generalization of the materials appropriate to the completion of soil-cartographic works on the drained and adjacent lands of agricultural organizations of the republic. Presented is the new information about the existence of peat and degropeat soils ranged at the species level of classification as a part of agricultural lands, and conducted is the analysis of spatial-time transformation of the component composition of drained organic soils between two rounds of the soil survey (1986–1998 and 2005–2015).

The influence of by products ploughing and mineral fertilizer doses on the crop rotation productivity and agrochemi-cal indicators of sod-podzolic sandy loam soil is studied. It’s established that autumn application of a compensatory dose of nitrogen to the straw didn’t ensure the increased productivity of crop rotation. It’s shown that application of correct doses of phosphorus and potassium fertilizers taking into account the phosphorus and potassium from a straw predecessor didn’t bring about the reduction of the productivity of crop rotation in comparison with the application of full doses of fertilizers and allowed saving P₆₀ and K₃₆₀.

The article deals with the results of long term experiments determining migration and balance of nutrition elements in the system: precipitation-soil-fertilizer-plant. Studied is potassium uptake with precipitation on soil surface, its losses when it is leached from sod-podzolic soils of different granulometric composition (from soil layer 1,0–1,5 m) during long agricultural use (1981–2012): different seasons of the year and decades (1981–1990, 1991–2000 and 2001–2010), and years with different degree of soil moisturization.

The results of long-term field experiments on specially prepared 4 levels of exchangeable magnesium content in Podzoluvisol loamy soils in a wide range of Mg 46–263 mg · kg–1 are presented. The parameters of soil and plant diagnostics of magnesium supply of corn, spring rapeseed and barley have been developed. The obtained data enable to choose the appropriate fields for particular crops and to identify the necessity for foliar spray of plants with 4 % solution of MgSO4 · 7H2О according to the analyses of soils and plants at early stages of their development.

The article deals with the basic issues of the progressive stable development of the national agro-industrial complex (pricing mechanism improvement, optimization of credit interest rates, increase of output and sales volume and others). The proposals on the solution to these issues are stated.

The paper considers the main destructive and stabilizing factors, and estimation of production and economic conditions applied to functioning of branches of agriculture is given. The author reveals the effectiveness of reforming of organizational and legal structure concerning business entities in rural areas, the main directions of innovation and investment activities affecting the efficiency of agricultural organizations and agricultural enterprises are identified as well.

The priorities for improving the institutional environment of an effective application of quality management system tools in agriculture are presented in the article, the essence and content of structural elements of the conceptual bases for its formation and development under current conditions are described. The model of the systematic approach implementation to the quality management of agricultural products, as well as the system of assessment indicators of the efficiency of its functioning are developed.

The development of state-private partnership in the field of agro-industrial manufacture is restricted due to the absence of special legislation, high degree of the management of the economy, insufficiently developed private business in the agro-industrial complex, absence of the modern capital market. The conditions of a successful development of partnership structures in the agro-industrial complex are proposed, the model and organizational and economic mechanism of functioning of a state and private partnership structure are developed. The created methodology enables to fit together economic interests of the participants of a partnership structure (from different brunches), allows all the participants of a cluster to use innovations up to the maximum, to increase the competitiveness of a cluster on a definite territory.

The indicators of microclimate and comfortable conditions of livestock maintenance in the buildings of different design during winter, summer and transitional periods of the year are studied. It’s established that metal buildings ensure more comfortable conditions in comparison with reinforced framing buildings. It’s shown that installation of a skylight in livestock buildings and use of big horizontal ceiling and recirculating air fans ensure the effective work of an air ventilation system in a cowshed and create comfortable conditions for the rest of animals.

Fattening and meat traits of a four breed hybrid of young pigs are studied. It’s established that young pigs of the (BLW  Y)  (D  P) genotype have better fattening traits, and the animals of the (L  Y)  (D  P) genotype demonstrate the best meat traits.

The article presents the data and characteristics of animals of the inbreed type in the Duroc breed. Genealogical structure of the inbreed type and number of animals at basic enterprises of the republic are stated. Reproductive traits of sows and fattening and meat traits of young animals are studied.

The influence of the new iodine containing preparation Iodomarin on the reproductive capacity and lactation performance of cows has been studied. It’s established that the use of 750 mkg of Iodomarin per capita a day improves the reproductive capacity of cows. It is reflected in the reduction of the labour length, a quicker separation of the placenta after calving, the reduction of the service time, and the increase of the lactation performance.

The paper demonstrates the results of the theoretical substantiation of the movement of mower blades on its performance. The analysis of the research of a rotary cut of the green is presented. Obtained is the model of blades behavior at the stage of rotary acceleration which proves the theoretical description of the process.

The article proposes the construction of a feeder with a crusher which allows combining feed additives supply together with crushing. The crushing device and its work are described. The length of the frontal side plane of a shear knife is determined what enables to have a shear effect with minimum energy cost.

Developed is the technology of producing modified starch of cold swelling with controlled properties allowing to obtain swelling starch with desired properties (solubility, swelling properties, viscosity) through controlling the degree of polymers destruction what makes it possible to expand the spheres and methods of starch use.