Publications by authors named "El-Sayed E A El-Sobky"

More than half of the world's population is nourished by crops fertilized with synthetic nitrogen (N) fertilizers. However, N fertilization is a major source of anthropogenic emissions, augmenting the carbon footprint (CF). To date, no global quantification of the CF induced by N fertilization of the main grain crops has been performed, and quantifications at the national scale have neglected the CO assimilated by plants.

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Partial replacement of chemicals with biological fertilizers is a recommended strategy to reduce the adverse environmental effects of chemical fertilizer losses. Enhancing the reduced mineral with biological fertilizers strategy by foliar application of humic acid (HA) and amino acids (AA) can reduce environmental hazards, while improving maize (.) production under semiarid conditions.

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Managing reactive nitrogen (Nr) in agricultural production is crucial for addressing the triple challenges of food security, climate change and environmental degradation. Intensive work has been conducted to investigate the effects of mitigation strategies on reducing Nr losses by ammonia emission (Nr-NH), nitrous oxide emission (Nr-NO) and nitrate leaching (Nr-NO) separately. This meta-analysis evaluated the efficiency of each strategy in mitigating Nr losses coupled with grain yield responses.

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Biofertilizers are a promising approach to substantially improve nutrient recovery and crop production. Moreover, zinc (Zn) deficiency is one of the key abiotic factors limiting global rice production. However, the effect of Zn-biochemical co-fertilization on rice production and nutrients recovery and surplus under semi-arid environmental conditions is not fully obvious.

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Article Synopsis
  • Water deficit significantly impacts legume production, but using plant growth-promoting rhizobacteria (PGPR) can enhance drought resistance and nitrogen production.
  • The study assessed the effects of inoculating five Vicia faba cultivars with PGPR strains Rhizobium leguminosarum and Pseudomonas putida under varying drought conditions, revealing that drought stress decreased photosynthetic activity and seed yield while increasing stress-related antioxidants.
  • Co-inoculation, especially with both bacterial strains, improved crop water productivity and yield, highlighting this approach as an effective and environmentally friendly strategy for enhancing drought tolerance in legumes.
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Nano-silicon application is an efficient novel approach to mitigate the deleterious impacts of drought stress on field crops, which is expected to increase owing to climate change, especially in arid regions. Two-season field studies investigated the influence of foliar-applied nano-silicon (0.5, 1, and 1.

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