The perspective of sustainable intensifying of agricultural production supply units requires obtaining of ecologically pure one, and considering the relatively low level in terms of the economic situation of our country- special advantages which lies in the cultivation of rhizosphere microorganisms, many of which are used for stimulating of growth and development processes in plants. One of the main crops for both, nutrition of animals and population in our conditions is a corn (Zea mays), though it’s productivity has not reached up to the potential when the proper meaning rhizosphere microorganisms held in cultivation of plants seems to be welcome. According to the literature and results obtained from new activation processes from seed germination, growth and productivity growth of spores in corn (Zea mays) is possible through the use of microorganisms (bacteria, fungal, actinomycetes etc.) or metabolites produced by them. Apart from this, the potential of rhizosphere microorganisms of various metabolites as products with a stimulation character would bring their further contribution to the growth and development of plants. This role can play different kinds of microorganisms (bacillus, agrobacterium, pseudomonas, mycobacterium, micrococcus, Fusarium, penicillium, trichoderma a.o.). Considering the subject and also the relative lack of scientific data in this regard we conducted some research to highlight selected microorganisms isolated rizoplana corn plants growing in different climatic zones of the Republic of Moldova. As research objects served rhizosphere microorganisms selected from plants (peas, chickpeas, corn, a.o.). Plant and soil samples were taken at different stages of development of maize (Zea mays) in the central areas of Moldova. In the process of research were used to methods proposed by vozniakasvskaya, Turetkaya, Boyarkin. The experiments we performed from different dilutions (1:50.1:100.1:1000) cultural liquids of microorganisms (bacteria-soil rizoplan, nodules). Microbiological assessment of the potential of the rhizosphere of maize (Zea mays) of each strains was performed based on the process of seed germination, seedling dry weight and calculated gross a hundred seeds, root number and length of cuttings on which sectors they’ve formed roots. For the purpose of determining capacity of stimulating the growth and development processes in plants was taken the method of bean cuttings rooted under the action of metabolites produced by bacteria. According to the data obtained was determined that the number of roots in cuttings of beans increased from 5,3- to 209.4% and filing the roots from 18.5- to 254.8% compared  with control ones. In specific laboratory conditions strains of bacteria pseudomonas sp. favored increasing of the sprouting process, growth and development of plants compared with the control ones from 8.23 to 73.08%. As a result of researching appeared a conclusion that in the rhizosphere of maize (Zea mays) could be met different types of bacterial strains with potential active rhizosphere microorganisms that contribute positively to colonization processes, stimulating plant growth and their development.