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<p>Sustainable nutrient management is essential for improving productivity, soil health and fertilizer-use efficiency in intensive cropping systems. A two-year field study (2021–2022) conducted at Punjab Agricultural University, Ludhiana, evaluated the effects of integrated organic nutrient management in a sugarcane (CoJ 88)–mungbean (SML 1827) system. The objective was to assess the impact of organic nutrient sources, biofertilizers and natural farming components on crop performance, soil fertility and nitrogen-use efficiency. The results indicated that application of farmyard manure (FYM) supplying 150&#xa0;kg N ha⁻<sup>1</sup> in combination with biofertilizers and natural farming components significantly improved mungbean growth and yield attributes, resulting in the highest seed yield and system productivity. This treatment recorded maximum cane equivalent yield and total system yield (79.5 t ha<sup>−1</sup>), comparable to FYM (150&#xa0;kg N ha⁻<sup>1</sup>) integrated with biofertilizers under intercropping. Soil available N, P and K remained statistically unchanged; however, organic treatments increased soil organic carbon (up to 0.41%) and improved available P and K compared to the control. Nitrogen-use efficiency indices varied among treatments. The highest partial factor productivity of nitrogen (PFP<sub>n</sub>) (731 and 690&#xa0;kg cane kg<sup>−1</sup> N in 2021 and 2022, respectively) was recorded under FYM supplying 75&#xa0;kg N ha<sup>−1</sup> with biofertilizers and natural farming, whereas agronomic efficiency was highest under recommended fertilizer application (190–195&#xa0;kg cane kg<sup>−1</sup> N). Among organic treatments, FYM at 150&#xa0;kg N ha<sup>−1</sup> combined with biofertilizers and natural farming recorded superior agronomic efficiency. Therefore, integration of FYM (150&#xa0;kg N ha⁻<sup>1</sup>) with biofertilizers and natural farming components enhanced system productivity while maintaining soil health, demonstrating a viable and sustainable alternative to sole chemical fertilization in sugarcane-based intercropping systems.</p>

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Toward Sustainable Sugarcane Production: Implications of Integrated Organic Nutrient Management on Soil Health, Productivity and Fertilizer-Use Efficiency

  • 期刊论文

  • 发表日期：

    2026年6月20日

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  • Sarita Jat,
  • Charanjit Singh Aulakh,
  • Amandeep Singh Sidhu,
  • Vinay Sindhu,
  • Amanpreet Singh

摘要

Sustainable nutrient management is essential for improving productivity, soil health and fertilizer-use efficiency in intensive cropping systems. A two-year field study (2021–2022) conducted at Punjab Agricultural University, Ludhiana, evaluated the effects of integrated organic nutrient management in a sugarcane (CoJ 88)–mungbean (SML 1827) system. The objective was to assess the impact of organic nutrient sources, biofertilizers and natural farming components on crop performance, soil fertility and nitrogen-use efficiency. The results indicated that application of farmyard manure (FYM) supplying 150 kg N ha⁻1 in combination with biofertilizers and natural farming components significantly improved mungbean growth and yield attributes, resulting in the highest seed yield and system productivity. This treatment recorded maximum cane equivalent yield and total system yield (79.5 t ha−1), comparable to FYM (150 kg N ha⁻1) integrated with biofertilizers under intercropping. Soil available N, P and K remained statistically unchanged; however, organic treatments increased soil organic carbon (up to 0.41%) and improved available P and K compared to the control. Nitrogen-use efficiency indices varied among treatments. The highest partial factor productivity of nitrogen (PFPn) (731 and 690 kg cane kg−1 N in 2021 and 2022, respectively) was recorded under FYM supplying 75 kg N ha−1 with biofertilizers and natural farming, whereas agronomic efficiency was highest under recommended fertilizer application (190–195 kg cane kg−1 N). Among organic treatments, FYM at 150 kg N ha−1 combined with biofertilizers and natural farming recorded superior agronomic efficiency. Therefore, integration of FYM (150 kg N ha⁻1) with biofertilizers and natural farming components enhanced system productivity while maintaining soil health, demonstrating a viable and sustainable alternative to sole chemical fertilization in sugarcane-based intercropping systems.