WAYS TO PRESERVE SOIL FERTILITY BASED ON AGROLANDSCAPE

As it is known, fertility is the most important property of soils to meet the needs ofplants in nutrient elements, moisture or air and to provide conditions for theirnormal life. It is clear that yield of crops depends on soil quality. That is why thepreservation of fertility is an important task in the implementation of agriculturalproduction. Agrolandscape systems based on environmental based should beintroduced in agriculture to solve the problem of preventing the degradation ofsoils, reducing water and wind erosion. Principles and methodology of landscapeplanning can be successfully adopted in farming systems that combine highenvironmental and economic indicators. During the years with unfavorableconditions such as drought or excessive moisture in farms with adaptive farmingthe yield is 30 % higher than in agricultural enterprises with the traditional farmingsystem. The article discussed that the minimum value of the environmentstabilizingfarm land agrolandscapes should not exceed 40% of the total land. Theconducted experiments proved that the humus content in the households underconsideration was increased by 0.24%. Average crop yields in the years withunfavorable weather conditions in the test farm (Kantemirovsky District, Voronezhregion) are the following: grains 29 dt/ ha, sunflower 24 dt/ha, and forKantemirovsky District, on average, 19.4 dt/ha and 17 dt/ha respectively. Stabilityof agrolandscapes depends on correlation between sustainable and destruct lands.Percentage ratio of agricultural lands for the sustainable agrolandscapes isdetermined