The
objective of the research was to increase the pebble lands fertility
and the irrigation water use efficiency, to reduce unproductive
water losses, to combat soil erosion and to improve the
environmental state of irrigated lands.Climate
of the area is sharply continental. The plot is located
within foothills. Water
table is 10 - 25 m and increases under irrigation.Soils
are comprised by light sierozem on pebbles. Net irrigated
area is 500 ha, while land use efficiency is 0,86.
Water supply to the height of 95 m is performed
by two pumps through the main pipeline with length of 4,6
km, to which 20 distribution pipes are connected and then
irrigation tubes with 70 mm in diameter and 6 - 10 mm holes.
Research
results:-
identified features of furrow irrigation under complex relief
and high slopes for optimal cotton irrigation;-
improved technique and technology of furrow irrigation and
optimisation of irrigation technique's components;-
developed basic elements of irrigation network for specific
conditions of such foothills area;
-
improved technique of cotton cultivation. |
