Methodology of observations and accounts in field experiments with alfalfa

There are stated methodic peculiarities of investigations in experiments with alfalfa. There are presented plant structure, growth, and development of the crop; necessary observations and accounts in the field ex-periments: phenology and biometrics; analytic observations in laboratory; yield account and the calculation of nutrient consumption. The article is based on the published book “Methodology of agricultural and technical investigations in field experiments with main field crops” by Lukomets V.M., Tishkov N.M., Semerenko S.A. (Krasnodar, 2022).