RIYADH: The Saudi Ministry of Environment has introduced an innovative irrigation technique using fish farming wastewater, significantly increasing date palm productivity across the Kingdom.

Recent research reveals that this method boosts soil nutrient levels and enhances various qualities of dates, improving their economic value, reported the Saudi Press Agency on Wednesday.

Conducted by a specialized team, the study, titled “The Impact of Using Fish Farm Wastewater on Palm Production” highlights this approach as a breakthrough in sustainable agriculture.

Nutrients in fish food residues, especially ammonia, enhance soil health and crop yield, SPA stated.

According to the study, date palms irrigated with fish farming water saw a 26 percent increase in fruit weight, 17 percent in length, and 13 percent in diameter.

Key nutrients in the dates also surged: sugar content increased by 25 percent, zinc by 367 percent, manganese by 112 percent, copper by 9 percent, calcium by 15 percent, phosphorus by 42 percent, and iron by 162 percent.

This research supports a national initiative to expand applied agricultural research, integral to the Kingdom’s transformation strategy.

The study estimates that the Kingdom’s 362 fish farms produce 386 million cubic meters of wastewater annually. Utilizing this for irrigation could significantly improve local date production and quality, aligning with Vision 2030’s sustainability goals.

The study also emphasizes economic benefits, including enhanced soil nitrogen and organic matter, reduced dependence on synthetic fertilizers, water conservation, increased farmer income, and promotion of a circular economy.