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A field experiment was conducted during the spring season of 2017 at AL-Ramadi district, AL-Anbar Governorate, Iraq. The research was conducted in a silty Loam soil, to evaluate of the performance and used exudative irrigation tubes for previous season compared to drip irrigation in some hydraulic parameters: Irrigation systems, moisture distribution, Application efficiency cucumber crop factor of the  and cucumber yield. The experiment was conducted according to randomized complete block design (RCBD) with three replicates. Results showed an increase in uniformity coefficient at drip irrigation as it reached 97% compared with 96.2% for exudation, with variation percentage of 8.33% for drip irrigation and 11.32% for irrigation of exudative. Moisture content decreased with distance from emitters horizontally for the three growth stages and irrigation methods. Cucumber water consumptive use was 356.32 mm for exudative irrigation compared with 456.6 mm for drip irrigation with decrease 21.96 %. Exudative irrigation method significantly increased in WUE as it reached to 15.29 kg m-3 compared with 13.13 kg m-3 for drip irrigation with an increase of 12.82%. The result showed an increment in irrigation efficiency giving 89.12% for drip irrigation compared with 85.88% for exudative irrigation with an increase 3.64%. The crop factor was 0.61, 0.66, 0.77, and 0.51 for the initial vegetative growth stage, second vegetative growth stage, start of flowering and fruit set and end flowering and fruit set respectively.

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A field experiment was conducted in Silty Loam soil during the fall season 2020 in one of the fields of College of Agriculture (Jazeerat Al-Ramadi - Al Hamidiyah, Research Center) north of Ramadi city, latitude 33° 27“ 10.8” N, and longitude 43° 23“. 2.4” E. The soil was morphologically described and classified as (Torrifluvent) according to the American classification system (USDA, 2010). Three methods of subsurface drip irrigation were chosen Partial Drying of the Root zone PRD, Sub-surface Boarder irrigation SBI and conventional sub-surface irrigation SDI, with two moisture depletion of available water rates (25% and 50%). The results of the study showed that the PRD irrigation method had the highest mean of the total yield when depleting 25% of the prepared water which was 28.628 Meg h-1 and the lowest average was 27.088 Meg ha-1 when depleting 50%. Whereas, the PRD treatment gave the highest yield value of 29.75 Meg h-1 when depleting 25% of the available water, Also the PRD method gave the highest average values of 29,217 kg ha-1 compared to 26,142 kg ha-1 for SDI method. This was reflected in the total infiltration, saturated hydraulic conductivity and addition efficiency, the total infiltration using PRD irrigation method recorded the highest average values of 31.2 cm compared to 24.7 and 22.5 cm for SBI and SDI drip irrigation treatments respectively. The 25% depletion treatment was significantly superior to the 50% depletion treatment, which gave an average of 28.1 cm and 24.1 cm respectively. As for the saturated hydraulic conductivity, the mean values of the saturated hydraulic conductivity increased significantly in the PRD irrigation method for the depth 0-15 m, reaching the highest average values of 2.92 cm h-1 compared to 2.32 and 1.97 cm h-1 for SBI and SDI irrigation methods respectively. The depletion rate of 25% gave the highest rate of conductivity of 2.63 cm per hour-1, while the depletion rate of 50% gave the lowest rate of water conductivity of 2.17 cm h-1. The PRD treatment gave the highest mean values of water conductivity at 3.38 cm h-1 compared to 2.17 and 2.49 cm h-1 for SBI and SDI irrigation methods at 15-30 cm depth respectively. Irrigation with partial drying of the root zone PRD gave the highest efficiency rate, adding depth 15-30 cm, which was 97.07%, compared to 96.52 and 95.35% for SBI and SDI irrigation methods respectively.

The study was conducted during the fall season at the research station of the University of Anbar - College of Agriculture, cauliflower seedlings were planted on 10/2/2021 in a soil with a sandy loam mixture texture, this research aimed to study the effect of the two irrigation methods, which are surface drip irrigation (IC) and partial drying of the soil surface (IP) and the addition of polymer in the following proportions, They are without adding MO, 0,3%ML, and 0,6%MH in bulk density, porosity, weighted diameter, plant height, leaf area, and total yield, The experimental treatments were distributed using the factorial experiment within the randomized complete block, and the results of the study showed that the method of partial drying of the soil surface was significantly superior to the rest of the treatments by giving it the lowest average of the bulk density values 1,25 mg,g-3 and the highest average of the porosity values at 50,79%, and an increase in the average values of the weighted diameter, plant height, leaf area and total yield at 0,36 mm, 50,33 cm, 10,58 dm plant-1 and 33,61 tons ha-1, respectively, The effect of the polymer treatments on the above traits, the polymer addition treatment was significantly superior by 0,6% by giving it the lowest apparent density at 1,22 Mg,g-3 and the highest mean of the porosity values, which was 52,17%, 11,79 dm per plant-1 and 34,17 tons per hectare-1, respectively,