Paper Information

Journal:   IRANIAN JOURNAL OF SOIL AND WATERS SCIENCES   2004 , Volume 18 , Number 2; Page(s) 0 To 0.
 
Paper: 

ENHANCEMENT OF COTTON AND MAIZE WATER USE EFFICIENCY WITH SALINE WATER IN ALTERNATE FURROW IRRIGATION

 
 
Author(s):  MILANI P.M., MOLLAHOSSEINI H., NOURIHOSSEINI S.M.
 
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Abstract: 

Growing commercial crops in dry continental climate and saline condition is a real challenge . Irrigation is essential if the crop is to generate an economic yield ,but irrigation combined with high evaporation during the summer can increase soil salinity. Occurrence of aridity and increasing area of saline land in arid and semiarid zone causes a lot of problems such as water deficit and plant stress. Therefore increasing of water use efficiency (WUE) in this area is necessary. An experiment was conducted with the aim of increasing water use efficiency (WUE) of saline water on maize and cotton in Varamin and Kashmar. The experiment was arranged in complete randomized block design in Varamin and strip plot design in Kashmar  with three replications and two treatments i.e. Fixed Furrow Irrigation (FFI) and Conventional Furrow Irrigation (CFI).Data showed that there was no significant difference between treatments in dry weight of stems, leaves, ear and dry weight of above ground plant parts, and in spite of decreased water use in FFI treatment, yield and its components did not decrease significantly .WUE was 0.77 kg.m-3 in (CFI) while it was 1.37 kg.m-3 in (FFI) in Varamin. As a result, the WUE in (FFI) was 1.77 times as (CFI). Data in Kashmar showed that the cotton yield was increased from 3007 kg.ha-1 to 3577 kg.ha-1 in (FFI) The amount of water used in (FFI) was 66.7 percent of (CFI) treatment. WUE in (FFI) was 1.76 times as (CFI).

 
Keyword(s): ALTERNATIVE FURROW IRRIGATION., SALINITY, FORAGE MAIZE, COTTON, WATER USE EFFICIENCY.
 
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