Kodzhebash V. Optimization of Jerusalem artichoke cultivating parameters in the steppe region polders

The object of researches is the elements of technology of growing of Jerusalem artichoke in the steppe region polders. The purpose of researches is the exposure of perspective sorts of Jerusalem artichoke and perfection of some receptions of growing in the steppe region polders. Methods of researches - experimental, the method of hypotheses, the field and laboratory, registration, measurement with naked eye, measuring-gravimetric, chemical, statistical, computation-comparative. Results of researches - For a theory: First for the steppe region polders the best sorts and hybrids of Jerusalem artichoke for different directions of the use are exposed. Conformity to the law of forming of harvest and his structural elements is set, pointlessness of application of mineral fertilizers in the conditions of poymennih soils is shown. The optimum structure of agrofitotsenoza Jerusalem artichoke is definite, that allows most complete to use potential possibilities of culture. For practice: The results of researches allow to carry out the correct selection of sorts of culture in obedience to direction of growing; purposefully to form the optimum parameters of agrofitotsenoz Jerusalem artichoke; to conduct mowing of above-ground mass in time, exactly proper straight applications of harvest. The sphere of the use is the agricultural enterprises of south region of Ukraine.