Scholarlink

<p>This study aimed to evaluate the combined effects of conservation tillage systems and different municipal compost application rates on key soil chemical properties and organic carbon sequestration rate potential in proso millet (<i>Panicum miliaceum</i> L.) cultivation under arid conditions of Zabol, Iran, and to identify the most sustainable management strategy for improving soil health and carbon storage in low-fertility agroecosystems.&#xa0;A two-year (2023–2025) split-plot field experiment based on randomized complete blocks with three replications was conducted. Main plots comprised three tillage systems: conventional (CT), reduced (RT), and no-tillage (NT). Sub-plots received four compost rates: 0, 10, 20, and 30 Mg ha⁻¹. Soil pH, organic carbon (SOC), total nitrogen, mineral nitrogen (NO₃⁻ + NH₄⁺), bulk density, and carbon sequestration rate in the 0–30&#xa0;cm layer were measured after each growing season.&#xa0;Compost application significantly increased soil pH, SOC (up to 0.65%), total nitrogen (up to 0.127%), and mineral nitrogen. No-tillage combined with 30 Mg ha⁻¹ compost achieved the highest carbon sequestration rate (1.14 Mg ha⁻¹ in the second year). Conservation tillage (RT and NT) and higher compost rates consistently outperformed conventional tillage and the control treatment across all measured parameters.&#xa0;Integrating high compost rates (20–30 Mg ha⁻¹) with reduced or no-tillage is a highly effective and sustainable strategy for enhancing soil chemical properties, increasing carbon and nitrogen stocks, and promoting long-term carbon sequestration rate in arid and semi-arid agroecosystems.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Effects of Different Tillage Systems and Compost Application Rates on Soil Chemical Properties and Organic Carbon Sequestration Rate in Proso Millet Cultivation in Zabol, Iran

  • 期刊论文

  • 发表日期：

    2026年7月23日

查看全文
  • Behrouz Alidadi,
  • Seyed Ahmad Ghanbari,
  • Mohammad Reza Asgharipour,
  • Mehdi Dahmardeh,
  • Fatemeh Fartout Enayat

摘要

This study aimed to evaluate the combined effects of conservation tillage systems and different municipal compost application rates on key soil chemical properties and organic carbon sequestration rate potential in proso millet (Panicum miliaceum L.) cultivation under arid conditions of Zabol, Iran, and to identify the most sustainable management strategy for improving soil health and carbon storage in low-fertility agroecosystems. A two-year (2023–2025) split-plot field experiment based on randomized complete blocks with three replications was conducted. Main plots comprised three tillage systems: conventional (CT), reduced (RT), and no-tillage (NT). Sub-plots received four compost rates: 0, 10, 20, and 30 Mg ha⁻¹. Soil pH, organic carbon (SOC), total nitrogen, mineral nitrogen (NO₃⁻ + NH₄⁺), bulk density, and carbon sequestration rate in the 0–30 cm layer were measured after each growing season. Compost application significantly increased soil pH, SOC (up to 0.65%), total nitrogen (up to 0.127%), and mineral nitrogen. No-tillage combined with 30 Mg ha⁻¹ compost achieved the highest carbon sequestration rate (1.14 Mg ha⁻¹ in the second year). Conservation tillage (RT and NT) and higher compost rates consistently outperformed conventional tillage and the control treatment across all measured parameters. Integrating high compost rates (20–30 Mg ha⁻¹) with reduced or no-tillage is a highly effective and sustainable strategy for enhancing soil chemical properties, increasing carbon and nitrogen stocks, and promoting long-term carbon sequestration rate in arid and semi-arid agroecosystems.