Antipova L. Scientific Basis and Agroteсhnical Methods for Alfalfa Seed Production in the Southern Steppe of Ukraine

The object of researches is the processes of growth, development and conformity to the law of forming of harvest of seeds of alfalfa under act of agrotechnical measures of its growing taking into account the complex of environmental conditions of area. Purpose of researches - scientifically to ground and develop for black earths of south Steppe of Ukraine energosberegayushie agrotechnical methods growing of alfalfa. Methods of researches - the field, laboratory, computation-gravimetric, chemical, computation-comparative, математико-statistical. Results of researches - for a theory: possibility of receipt of permanent harvests of seeds of alfalfa on the unirrigated earths is proved; are developed and grounded the effective measures directed on the rise of seminal productivity, reduction of power expenditures on growing of alfalfa; the safe resursosberegayushaya system of fertilizer of alfalfa is developed ecologically on the unirrigated earths and balance of elements of feed is calculated; the given complex estimation of of high quality composition of alfalfa, qualities of harvest of above-ground biomassi of sorts of culture, duration of the use of sowing on seminal purposes. For practice: the improved energosberegayushaya ecologically safe technology of growing of alfalfa on seeds without irrigation is offered, that is instrumental in the rise of productivity of sowing on 18 and anymore % and reduction of power expenditures on 20 and anymore %, comparatively with existent technology. The scientific-grounded doses and terms of bringing of mineral fertilizers are recommended, saving the methods of basic till of soil and agrotechnical measures of care of sowing of alfalfa, optimum terms of sowing. The sphere of the use is the agricultural enterprises of south Steppe of Ukraine.