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Compost application to agricultural land needs to ensure sustainable development.
Hence it is important to determine the fertilizer value and soil conditioning ability of composts,
and further to assess the risk of adverse environmental effects, such as excessive nitrate leaching.
A lysimeter study was undertaken on poor quality sand to determine the effects of biowaste and
onion compost application on forage maize production and nitrate leaching, under high drainage
rate conditions. The two composts were applied at rates of 100, 250, 400 and 600 kg total N ha-1.
Rates of mineral fertilizer N were used as reference treatments. Under the conditions of the
study, mineral fertilizer had a poor effect on crop production, while resulted in excessive N
leaching losses. The onion compost application (C: N ratio = 10) at rates > 250 kg total N ha-1
significantly increased crop yield compared to the control treatment, and the mineral fertilizer
treatments. The biowaste compost (C: N ratio = 21) did not enhance crop yield. Both composts
did not increase nitrogen leaching losses compared to the control treatment, and they were
advantageous over mineral fertilizers from a water quality perspective.
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Egypt reviews Red Sea waste management system – Dailynewsegypt
Egypt’s Minister of Local Development and Environment, Manal Awad, and Red Sea Governor Walid El-Barqi held an extensive meeting to review the performance of the governorate’s waste management system and discuss measures to improve environmental services and operational efficiency. The meeting, held during Awad’s visit to the Red Sea Governorate to mark World Environment Day, focused on assessing current challenges facing waste collection, sorting, recycling and disposal operations, as well as identifying priority actions to strengthen the system’s performance. Awad stressed that the government places significant importance on developing an integrated waste management system in the Red Sea Governorate, given its strategic importance as one of Egypt’s leading tourism destinations. She emphasized the need to comply with environmental and technical standards governing sanitary landfills, waste treatment facilities and environmentally sound disposal practices. During the meeting, officials reviewed the current status of waste management operations in Hurghada, including collection, transportation, sorting, recycling and final disposal activities. Discussions also covered the infrastructure upgrades required to improve system efficiency and ensure the proper operation of sanitary landfill facilities. Yasser Abdullah, head of Egypt’s Waste Management Regulatory Authority, presented updates on temporary waste collection and sorting sites and outlined measures to strengthen operational management and oversight. He highlighted the importance of improving monitoring mechanisms for waste handling activities and maximizing the recovery of recyclable materials while reducing informal and unregulated practices.