Optimum irrigation management on wheat in saline condition
2009
Dehghani, Mohsen | Karami, Siroos
Restriction of water resources is the most important factor of preventing the development in arid and semiarid climates. Wheat is one of the agricultural crops which is cultivated in saline soil and water condition. In order to study the effects of saline water quality and its maximum allowable deficiency on wheat, this study was carried out in Roodasht salinity research station during three years (2004-2007). Experimental design was split plots in thee replications. The three water quality (4, 8 and 12 dSm-1) were the main factors and the M.A.D Percentage of (30%, 50% and 70%) were sub factors. Results showed that increasing of water salinity and M.A.D decreased the yield and weight of 1000 grains, but increased the protein content of the seeds. The highest yield was produced by 30% MAD and 4 dSm-1 irrigation water quality reaching to 15145 kgha-1, and the lowest was belonging to 70% M.A.D and 12 dSm-1 irrigation water quality yielding only l0060 kgha-1. The highest protein was produced by 70% M.A.D and 12 dSm-1 Irrigation water quality. The best Water Use Efficiency belonging to 70% M.A.D and 4dSm-1 reaching to 1.11 kgm-3.
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