Summary |
Investigations
related to technological process of furrow irrigation improvement
in order to equal soil wetting along the furrows, water
resources saving, soils productivity and irrigators efficiency
increase. Experimental
plot is located in low reaches of AmyDarya river.Relief is flat.
Climate is sharply continental. Soils are heavy
loam and light sierosems. Groundwater salinity degree is
0,31-0,54% on solid residue, chloride-sulfate type. Groundwater
deep is 1,5-2,2m (vegetation), 3,0-3,5m (autumn-winter period),
with salinity 3-5 g/l.Irrigated area
is 1550 ha (gross), Land efficiency 0,07.Irrigation
system in earth channel, efficiency 0,75-0,80, length -28m/ha.Introduction
of new technology during investigations allowed to:
- increase water flow up to
70-90 l/sec- reduce irrigation time in
2-3 times- increase equal soil wetting
up to 0,9-0,96- automate water allocation
in furrows - reduce irrigation norms on
2000-2400m3/ha- reduce water expenditures
on 21 m3/t- increase irrigators efficiency
increase crop
yield from 16 to 40 t/ha |
Bibliography |
Author
- O. SeidovTitle - “ Furrow
irrigation technology on lands with a small slope of Tashaus
oblast”Collection:
“Lands reclamation in Turkmenistan”, 1979.
Irrigation
technology on horizontal panned sites of irrigated lands
is conducted. Comparison with existing irrigation technology
is given. Reasons of irrigation water saving, irrigators
efficiency and cotton productivity increase are revealed. |
