EN
Field experiment is one of elements in crop production research, which can support working hypothesis or is used for its verification. Depending on goal of research different kind of experiments can be used, from one - replication to multifactorial, long - term experiments. Main goal of a research is learning of interaction mechanism between physiological and environmental factors and its effect on yield quantity and quality. Methods of experiments in particular field of crop production has its own specificity. Development of science and technics create, new tools, used in research process. The results of experiments are the basis for practical recommendations, although it brings difficulty from time to time.