Research article

EFFECT OF IRRIGATION INTERVALS AND THE POLYTER SOIL CONDITIONER ON THE CHEMICAL INDICATORS AND YIELD OF SEVERAL POTATO CULTIVARS GROWN IN DESERT SOIL

Hassan A. A. Almayeh and Abdulla A. Abdulla

Online First: December 21, 2022


A factorial experiment was conducted in Al-Basra provainc, Al-Zubair district, within Al-Mashrouf farms in the Al-Raha desert area, for the purpose of studying the effect of the fertilization method and the quality of irrigation water on the vegetative and flowering growth of three cultivars of potatoes in terms of chemical growth and yield. Three factors were used in the experiment, such as the first factor, the use of three irrigation intervals (daily, every 2 days, every 3 days) While the second factor represented three levels of superabsorbent polyester (0, 30, and 60) kg ha-1, while the third factor was the cultivation of three potato cultivars (Burien, Arizona, and Riviera). A randomized block design was followed with three replicates for each treatment in split-split-plot arrangement and the least significant difference (L.S.D.) was applied. At the level of 0.05 in analyzing the data statistically.The results showed that there was a significant response caused by the combination (daily irrigation of Reviera plants without the use of polyurethane) the highest results in the content of leaves of chlorophyll,While the combination (daily irrigation of Burien cultivar plants with 60 kg ha-1 of polyurethane) gave the highest percentage of total soluble solids, and the combination (irrigation every two days for Burien cultivar plants with 60 kg ha-1 of polyester) gave the highest average of total and marketable yield.The lowest results were achieved when irrigating every three days for cultivar Arizona, without or with polyether treatment.

Keywords

irrigation intervals, super absorbent polyester, chemical indicators and yield, potato cultivars.