<p>Sustainable nutrient management is essential for optimizing sugarcane production. In India, nutrient management practices predominantly rely on chemical fertilizers, which can have long-term adverse effects on soil health and sustainability. To address this issue, there is a growing need to adopt integrated nutrient management strategies. In this context, a field experiment was conducted to evaluate the impact of combining nanofertilizers and biofertilizers on sugarcane yield, economic returns, and soil health. The study included eight treatments in a randomized block design with three replications. The application of 50% recommended dose of nitrogen (RDN) through conventional urea combined with nitrogen-fixing biofertilizer (NFB) and foliar sprays of nano urea, nano copper, and nano zinc (50% RDN + NFB + nN + nZn + nCu) significantly improved dry matter accumulation, physiological traits, and yield attributes. This treatment produced the highest cane yield (107.33 t ha⁻¹ for plant crop, 79.01 t ha⁻¹ for ratoon) and commercial cane sugar (CCS) yield (13.91 t ha⁻¹ and 10.24 t ha⁻¹, respectively) and also maximized economic returns (US$ 2819.21 and 1941.17 ha<sup>− 1</sup>). It increased cane yield by 43.20% and 38.23% over the control, and by 12.53% and 8.93% over recommended dose of fertilizer (RDF), while reducing nitrogen use by 50%. Soil health also improved, as evidenced by higher microbial biomass, enhanced enzyme activities. Soil available nitrogen was highest under the application of 100% RDN through conventional fertilizers. Integrating 50% RDN with biofertilizers and nanofertilizers (50% RDN + NFB + nN + nZn + nCu) enhances sugarcane growth, yield, profitability, soil quality, and water productivity offering a sustainable approach to nitrogen management.</p>

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Elucidating the Conjoint Effect of Nano, Conventional and Bio-Fertilizer on Steering Sugarcane Productivity, Quality and Soil Health

  • Mona Nagargade,
  • Vishal Tyagi,
  • Dileep Kumar,
  • Sudhir Kumar Shukla,
  • Preeti Singh,
  • Rajeev Kumar,
  • Ashwini Dutt Pathak,
  • V. P. Jaiswal,
  • M. K. Tripathi,
  • A. P. Dwivedi,
  • Lalan Sharma,
  • Sanjay Singh Rathore,
  • Pravin Kumar Upadhyay,
  • Ranjit Singh Gujjar

摘要

Sustainable nutrient management is essential for optimizing sugarcane production. In India, nutrient management practices predominantly rely on chemical fertilizers, which can have long-term adverse effects on soil health and sustainability. To address this issue, there is a growing need to adopt integrated nutrient management strategies. In this context, a field experiment was conducted to evaluate the impact of combining nanofertilizers and biofertilizers on sugarcane yield, economic returns, and soil health. The study included eight treatments in a randomized block design with three replications. The application of 50% recommended dose of nitrogen (RDN) through conventional urea combined with nitrogen-fixing biofertilizer (NFB) and foliar sprays of nano urea, nano copper, and nano zinc (50% RDN + NFB + nN + nZn + nCu) significantly improved dry matter accumulation, physiological traits, and yield attributes. This treatment produced the highest cane yield (107.33 t ha⁻¹ for plant crop, 79.01 t ha⁻¹ for ratoon) and commercial cane sugar (CCS) yield (13.91 t ha⁻¹ and 10.24 t ha⁻¹, respectively) and also maximized economic returns (US$ 2819.21 and 1941.17 ha− 1). It increased cane yield by 43.20% and 38.23% over the control, and by 12.53% and 8.93% over recommended dose of fertilizer (RDF), while reducing nitrogen use by 50%. Soil health also improved, as evidenced by higher microbial biomass, enhanced enzyme activities. Soil available nitrogen was highest under the application of 100% RDN through conventional fertilizers. Integrating 50% RDN with biofertilizers and nanofertilizers (50% RDN + NFB + nN + nZn + nCu) enhances sugarcane growth, yield, profitability, soil quality, and water productivity offering a sustainable approach to nitrogen management.