Qidiruv

ploughing in soil of green plants (frequently leguminous) with the purposes of enriching the soil with nutrient materials, meliorating of its structure.

impoverishment of soil caused by nutrient materials in result of its irrational usage or during natural evolution leading to a decrease in fertility of soils.

[Greek aer — air and ponos — work] — aerial culture, cultivation of plants without soil by means of periodic spraying of their roots with a nutrient solution. See also Hy

[Greek hydro — water and ponos — operation] — cultivation of plants without ground on nutrient solutions. A root system of these plants, thus, is developed in a solid sub