Evaluation of Subsoiling Tillage Methods and Irrigation Systems in Potato Crop Growth and Soil Dynamics

Abstract

This study was conducted in the field of the College of Agriculture and Forestry / University of Mosul during in the spring agricultural season of 2023 to examine the effect of three irrigation systems (drip, sprinkler and furrow irrigation) and the use of the subsoiling plow at depth of 30-35 cm in the method of single-pass tillage and the Cross-Passing tillage on the potato crop, The split-plot design was used once in a Randomized Complete Block Design (RCBD) with three replications. Data were then recorded and statistically analyzed. the results were as follows:  The drip irrigation system significantly outperformed the percentage of dry matter in the leaves, and the sprinkler irrigation system significantly outperformed the deviation in the shape of the soil beds, while the number of irrigations decreased significantly. The season, significantly outperformed the Cross-Passing tillage method in the number of air stems, the percentage of dry matter in the leaves, the number of tubers per plant and the total yield of tubers, with an increase of 46.15, 20.88, 15.01 and 23.58%, respectively ,The single-pass tillage method gave the recorded the lowest significant values values in the percentage of deviation in the form of soil beds and the number of irrigations per season, at 29.20 and 4.88%, respectively, The interaction between drip irrigation and the Cross-Passing tillage method recorded the highest significant values in number in air stems and the the percentage of dry matter in the leaves, the number of tubers per plant and the total yield of tubers, while the overlap between sprinkler irrigation and single-pass tillage method gave the highest significant values in the deviation in soil beds shape.