N.S. Petkevich. 40 years anniversary of Smolensk State Agricultural Academy…3

MECHANISM OF MANAGEMENT

A.V. Belokopytov, V.A. Samorodskiy, A.N. Ternov­chuk, A.Y. Mironkina. The dominant factors of productivity of agricultural labor in the conditions of WTO…7

O.L. Zharova. Status and trends of increasing the efficiency of milk production in agriculture of the Smolensk region…12

E.V. Trofimenkova, M.V. Belokopytov, O.L. Zharova. Improvement of the wage system in dairy cattle breeding…15

AGRICULTURE AND CROP PRODUCTION

A.A. Fedotov, S.A. Lihodievsky, A.I. Khripunov. Influence of drought on winter wheat productivity…19

А.V. Shindelov, L.N. Korobova, A. V. Tanatova. Technological predisposition and environmental grounds of field units routing…22

I.N. Romanova, S.E. Terentyev, S.M. Knyazeva, S.N. Glu­shakov, M.I. Perepechay. Productivity and grain quality of spring barley varieties and their applicability for brewing under conditions of the western part on Nonblack Soil Zone…27

T.N. Ryabova, V.G. Kolesnikova, I. Sh. Fatykhov. Ecological plasticity and yield stability of oat varieties in the Midle Predural’e…31

A.A. Dontsova. Types of inheritance of the feature «number of grains per spike» by spring barley hybrids F₁ и F₂ in conditions of Rostov region…34

A.Ch. Udzhukhu, E.E. Chelnokova, V.A. Maslivets, S.A. Shevel. Weeds cntamination of rice crop at various soil treatments…37

M.T. Gaynutdinov, P.A. Chekmarev, V.P. Vla­dimirov. Productivity of early ripening potato variety udacha with application of different doses of zeolite against the background of mineral fertilizers…40

A.A. Vasiliev. Effectiveness of mival-agro prepara­tion applying on potatoes in conditions of South Ural…44

A.I. Stepanov, E.I. Pribylykh, A.Y. Fedorov, F.V. Nikolaeva. Influence of fertilizers and biological preparations application on potato productivity and fertility of frozen meadow-chernozem soil of Central Yakutia…47

I.N. Romanova, S.N. Glushakov. Influence of cultivation conditions on yield varieties of flax in western part of Nonblack Soil Zone…50

ANIMAL HUSBANDRY AND FEED PRODUCTION

A.D. Prudnikov, A.G. Prudnikova, A. Yu. Korghov, E.A. Savina. Directions of increase in feed crop production and fodder quality in Nonblack Soil Zone of Russia…53

M.F. Judin, D.S. Bryuhanov, N.A. Judina. The influence of natural biopolymer chitosan on milk production of cows…56

V. Listratenkova, N. Petkevich, V. Tsis’, J. Kurskaya, V. Levchenkova, J. Sokolova, N. Ruzanova, N. Shumjko. Modern stage and problems of cattle breeding for milk productivity in Smolensk region…58

I.N. Mishin. Modeling egg-laying queen bee and application of the model in the technology of the content of bee colonies…62

L.S. Кashko, P.P. Кrasochko. Serological monitoring of cattle concerning viruses activators pnevmoenteritov of calfs…66

MECHANIZATION

E.L. Tsaregorodtsev, A.V. Recovets, V.A. Drabov. One of the ways to improve the accuracy of positioning systems machine-tractor units…69

PROCESSING

R.V. Ulanova, I.K. Kravtchenko, E.V. Gladyshev, N.D. Lukin. Study of possibiilty to produce acidifying food additives based on corn extract…71

S.T. Bykova, T.G. Kalinina, V.V. Ananskikh, T.E. Bo­rovik, T.V. Bushueva. Application of fatty acids for enrichment of food for children suffering phenylketonuria…74