The relationship of tillage pattern and water infiltration under quinoa (Chenopodium quinoa Willd) Crop cultivation in western Iraq
This study aims to identify the relationship of the tillage pattern and water infiltration under quinoa (Chenopodium quinoa Willd.) crop cultivation in western Iraq, Hit district, Anbar Governorate. The field experiment is conducted in sandy loam soil during the spring season of 2021, located on longitude 95° 42ꞌ 25ʺ N, and latitude 68° 33ꞌ 42ʺ E at 71 m.asl. The experiment lay-out is a randomized complete block design in three replicates, including three tillage patterns, namely: conventional tillage (T2), minimum tillage (T1), and no-tillage (To), and three irrigation treatments which are ET 0.75, ET 1.00, and ET 1.25. The treatment T2 gives the highest correlation coefficient (R2) value, approached 0.9964, and the highest cumulative water infiltration with 35.7 cm during 4 hours. The highest basic infiltration rate is observed in the T2 treatment with 3.3 cm h-1 when the filtration rate is constant.