The Role of Soil and Water Salinity Management on Quinoa Crop Productivity
Keywords:
Quinoa, Saline water, Irrigation management, Crop productivityAbstract
A field experiment was carried out using the seeds of the quinoa crop for winter season 2020-2021 in the experimental field of Al-Raed Research Station, which is located 20 km west of Baghdad. The experiment was designed according to the Completely Randomize Blocks Design (CRBD), as the field was divided into nine blocks (Experimental board) with dimensions of (8×5) meters representing three different treatments (T1 saline well water, T2 mixed salty and fresh water, T3 fresh river water) and with three replications for each treatment. The soil salinity values were high just before planting until reach the flowering stage and then soil salinity decreased during the rest of the season and recorded 11.2 dS.m-1 in the surface layer when irrigated with mixed water, and reached 6.1 dS.m-1 in the surface layer when irrigated with fresh water. The productivity values of this study was showed that the irrigation treatment with fresh water had the highest productivity values and recorded 935 kg/ha, while lowest value of productivity was recorded 595 kg/ha with saline water treatment. The results of the statistical analysis using the SPSS program indicated that there were significant differences in the productivity values.
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