Savoskina O., Alirchikov F., Alibekov M.

Ecological role of fertilizers in changing the structure of agrophytocenosis with cultivation irremovably flax for fiber

One of the factors in increasing the productivity of cultivated culture is the introduction of fertilizers and lime. However, along with the improvement of soil conditions agrophytocenosis, they have an impact on the ecological conditions of growth and development of weeds, changing their species composition and abundance. So liming (1 time in 6 years) increased the number of weeds in permanent flax 1.5-2.0 times, and improve their floristic diversity. Complete fertilizer (N100P150K120) and their combination with organic in an increase in the dry weight of weeds due to strong growth of above-ground mass. However, the role of fertilizers an ambiguous, as they create a variety of environmental situations that can change the phytosanitary condition of crops.

Keywords: AGROPHYTOCENOSIS, WEEDS, PHYTOSANITARY CONDITION OF CROPS, PERMANENT CULTIVATION OF FLAX, FERTILIZERS, ECOLOGICAL SITUATION