The article presents the assessment of the reproduction of basic resources (labor and capital) at the macroeconomic level in respect of the gross domestic product and its changes.The analysis of the social and economic development of the Republic of Belarus for the period 2000–2010 is done on the basis of official statistics. Recommendations on the improvement of resource saving management in the national economy and in the regions are proposed.

In the article modern market mechanisms of labour motivation in the agrarian sector are considered and assessed. The experience of the use of commercial calculation is generalized, and the ways of its improvement for the increase of economic efficiency of the performance of agricultural organizations are determined.

The paper deals with the problems of reforming the national bookkeeping and approach to the International Financial Reporting Standards under the conditions of the integration of Belarusian economy into a single world economic organism.

The article deals with the comparative analysis of the productivity of the legume­grass mixture (oats + wheat + lupine) and presents economic, agricultural and energetic characteristics of using agricultural practice to intensify the technology of mixture cultivation. It is established, that the agricultural practice is economically proved, as against N₄₀P₆₀K₉₀ in the mixed crops (oats + spring wheat + lupine) when processing the seeds of the components with bio­preparations, zinc and epin the profit makes 193.1 and 204.5 $/ha, profitability – 109.0 and 113.9 %, recoupment of 1 kg of NPK – 11.3 and 11.5 kg of fodder, agropower index – 3.05 and 3.07.

The article considers and substantiates the structure of arable lands of such leguminous crops as yellow and blue lupine, field and green pea, soya, and perennial leguminous crops – red clover and eastern galega. The results of the research on creation of new varieties and samples of yellow and blue lupine, soya, red clover and eastern galega are described.

The article summarizes the results of 20­year­old researches on introduction of hard wheat (Triticum durum Desf.) in Belarus. The distinctive biological and technological features of T. durum and T. aestivum. are stated. The results and basic directions of winter and spring hard wheat breeding are presented. The main agricultural methods of cultivation of spring hard wheat have been developed and substantiated. The problems and prospects of introduction as well as the issues of economic efficiency of hard wheat cultivation in the Republic of Belarus are described.

The article deals with new stages of the technology of breeding of high yield cows in milking herds. The yield of cows of different functions is characterized. The distribution of cows of a definite group in accordance with the age of the highest yield is described. The influence of selection and the qualities of mothers on the yield of daughters is presented.

The article deals with the results of the research into the domestic antimicrobials – gisterosan, uteroseptonik LC/TG, gisterosan MK, fertifil K and fertifil C used for hysteritis and endometritis treatment. These antimicrobials are also added into semen diluents for boars and bulls in order to increase the conception rate of cows with the syndrome of “estrus cycle recurrence” and raise the reproductive capacity of sows with postpartum pathology or recurring estrus cycle. The experiments show that antibacterial properties of the developed antimicrobials bring about a high therapeutic effectiveness and satisfactory indicators of reproductive performance.

As a result of the long­term research conducted within different international, fundamental and innovative scientific projects developed is the system of fish breeding and physical­biochemical methods of regulation of fish reproduction on fish farms in order to solve the problem of providing people with fish of high quality.

The paper presents the methods and results of the experimental research into determining the degree of flax heads threshing with a device with an elastic working part in the line of primary flax processing of the firm Van Dommele Engineering. As a result of the experiment the mathematical model of flax threshing has been obtained. It’s established that the threshing degree Е = 98.81 % can be received when the speed of flax band transporting is 1.41 m/s (v = 1.41 m/s), the space between a working part and concave is 0.01 m (Δ = 0.01 m) and the frequency of cylinder rotation is 2.92 s–1 (n_б = 2.92 s^–1).

The paper presents the results of the research on the assessment of suitability of a wide range of Belarusian potato varieties for a long term storage. On the basis of the analysis of morphological, biological and biochemical properties of potato tubers of different varieties the main directions of their use are determined.