تأثير فاصلة الري في التوزيع الرطوبي و الملحي لتربة بساتين نخيل التمر تحت أنظمة ري مختلفة

Abstract EN

The study was conducted in Hamdan area within Abi Al-Khasib district, south of Basra governorate, during the two growing seasons 2019-2020.

This study was aimed to evaluate effect of irrigation method and irrigation interval on moisture and salt distribution.

The experiment included the factor of irrigation method with three treatments: drip irrigation, basin irrigation, and the regular tidal method, while the irrigation interval factor included three treatments: 3, 6 and 9 days.

Water was added according to the irrigation interval based on the decrease in the water level calculated from the American Evaporation (Evap.

Pan Class-A).

The results showed that use of drip and basin irrigation methods treatments led to a significant increase in the moisture content of different soil depths compared with the treatment of traditional irrigation (tidal), and the values increased significantly with less irrigation interval, and the results showed that the values of moisture content increased significantly with the depth and that, in general, they decreased at the end of the second season compared to the beginning of the experiment.

The use of drip and basin irrigation methods also led to a decrease in the electrical conductivity values for different soil depths, compared to the tidal treatment, which was a significant high value in the electrical conductivity, especially at the depths of 0-30 and 60-30 cm.

The use of drip and basin irrigation methods Contributed to the significant increase in the productive qualities: weight, volume, length, total sugars and dry weight of date palm Hillawi Cv.

compared to using the traditional irrigation method (tidal).

Irrigation methods treatments were taken in the following order: drip < basin < tidal, especially in terms of their effect on above productive traits.

The results showed a significant improvement in the above productive characteristics as a result of using the short interval.