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<p>This study was conducted under field conditions at Harran University’s Osmanbey Campus. Experimental plots were established using a randomized block design. Parameters such as chlorophyll a and b, carotenoids, total soluble protein, carbohydrate content, and antioxidant components were evaluated across different fertilizer applications.</p><p><?noindent??>The results indicated that groups treated with 300&#xa0;kg ha⁻¹ DAP (Diammonium phosphate) fertilizer showed the highest values for chlorophyll and protein synthesis, whereas groups treated with 100 t ha⁻¹ farmyard manure achieved the highest results for carbohydrate and antioxidant production. While chemical fertilizers enriched in nitrogen positively influenced photosynthesis and protein biosynthesis, farmyard manure was found to enhance antioxidant defence mechanisms due to its organic component richness. Lipid peroxidation (MDA) levels remained relatively stable across treatments, though higher values were noted under intensive organic fertilization. The findings suggest that integrating organic amendments with strategic mineral fertilization optimizes cotton physiological health and productivity, offering a sustainable alternative to purely chemical regimes.</p>

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Comparative effects of organic and inorganic fertilizers on photosynthetic pigments, oxidative metabolism, and yield in cotton (Gossypium hirsutum L.) under semi-arid field conditions

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年6月20日

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  • Cevher İlhan Cevheri,
  • Nimet Kilinçoğlu,
  • Vedat Beyyavas,
  • Erdal Sakin,
  • Ahmet Çelik,
  • Suat Cun,
  • Zemzem Firat,
  • Hamza Yalçin,
  • Emrah Ramazanoglu,
  • Ahmet Yilmaz

摘要

This study was conducted under field conditions at Harran University’s Osmanbey Campus. Experimental plots were established using a randomized block design. Parameters such as chlorophyll a and b, carotenoids, total soluble protein, carbohydrate content, and antioxidant components were evaluated across different fertilizer applications.

The results indicated that groups treated with 300 kg ha⁻¹ DAP (Diammonium phosphate) fertilizer showed the highest values for chlorophyll and protein synthesis, whereas groups treated with 100 t ha⁻¹ farmyard manure achieved the highest results for carbohydrate and antioxidant production. While chemical fertilizers enriched in nitrogen positively influenced photosynthesis and protein biosynthesis, farmyard manure was found to enhance antioxidant defence mechanisms due to its organic component richness. Lipid peroxidation (MDA) levels remained relatively stable across treatments, though higher values were noted under intensive organic fertilization. The findings suggest that integrating organic amendments with strategic mineral fertilization optimizes cotton physiological health and productivity, offering a sustainable alternative to purely chemical regimes.