Influence of mineral nutrition on the life state of some dominating species of long-term cereals

On the long-term experimental experience, the vital status of some dominant perennial cereal species is considered on the basis of key morphological traits, depending on the dose of mineral nutrition. According to the results of the study, all the studied species revealed: 2 vitality types - prosperous and depressed; 3 vitality spectra: left-sided, centered and right-sided. The left-sided spectrum in Hordeum brevisubulatum and Elytrigia repens, is noted in the second variant, and in Alopecurus arundinaceus in the third variant, where individuals of the highest class “a” predominate. The centered spectrum in Hordeum brevisubulatum and Elytrigia repens is noted in the first and third variants, and in Alopecurus arundinaceus in the first variant, which are dominated by individuals of the middle class “b” and with a small number of individuals are represented by the highest “a” and lower “C” classes. The right-sided spectrum in all species is noted in the fourth variant, where with a high representation of individuals of the lower class “c” and middle class “b”, and the absence of the highest class “a”.