Industrial model of agricultural intensification was oriented mainly
towards higher level of yields and profit without taking in consideration the negative
ecological and social consequences. The discrepancy in prices for nonrenewable
sources of energy and their derivates, from one side, and relatively low prices for
agricultural goods, from the other side, together with many other challenges faced by
modern agriculture, have allowed to realize the unsustainability of the dominant
concept of industrial intensification. Organic agriculture is one of the alternatives to
conventional agriculture. Data from the long-term field experiment on ecological
agriculture and permanent crops at Selectia Research Institute of Field Crops (Bălți,
Republic of Moldova) are analyzed regarding the effect of crop rotations with and
without mixture of perennial grasses and legumes, as well as the share of soil fertility
in yield formation for different crop rotations and in permanent crops on different
systems of fertilization (average for 2013-2022).
