Answer:

Introduction:

Urea, a major nitrogenous fertilizer used extensively in Indian agriculture with its consumption/sales rising from 26.7 million tonnes (mt) to 35.7 mt between 2009-10 and 2022-23. It has historically been linked to increased yield. However, continuous and exclusive use of urea can lead to imbalances in soil nutrients. Fortifying urea with micronutrients and secondary nutrients addresses this imbalance, leading to holistic soil health and better yields.

Body:

Enhancing Fertilizer Efficiency:

• Nutrient Balance:
  • While urea primarily supplies nitrogen, soils might be deficient in micronutrients such as zinc, boron, and manganese. 
  • By fortifying urea with these micronutrients, a balanced nutrient supply is ensured.
• Improved Uptake by Plants:
  • The combination of primary and secondary nutrients in fortified urea allows plants to take up each nutrient more efficiently. 
  • For instance, the presence of sulfur (a secondary nutrient) can facilitate better uptake of nitrogen.
• Prevention of Nitrogen Loss:
  • Fortified urea, especially with nitrification inhibitors, can reduce nitrogen losses, ensuring more nitrogen is available for plant uptake.

Addressing Soil Deficiencies:

• Replenishment of Depleted Micronutrients:
  • Continuous cropping without replenishing micronutrients can lead to zinc-deficient soils, especially in states like Punjab. 
  • Fortified urea can address this deficiency.
• Improved Soil Health:
  • Micronutrients, though required in minute amounts, play crucial roles in soil microbial activities and overall soil health.
  • For example, Boron is vital for flower setting in plants, and a deficiency can significantly reduce yields.

Challenges in the Adoption of Fortified Fertilizers:

• Lack of Awareness:
  • Many farmers are unaware of the benefits of fortified urea or the specific nutrient deficiencies in their soils.
• Higher Costs:
  • Fortified fertilizers may be more expensive than regular urea, deterring cost-sensitive farmers.
• Distribution and Availability:
  • Ensuring the consistent supply and distribution of fortified urea across the vast agricultural landscape of India poses logistical challenges.
• Adaptation Resistance:
  • Traditional farmers might be resistant to changing their long-followed practices and adopting new products.
• Inadequate Research and Extension Services:
  • There’s a need for more extensive soil testing facilities and farmer training to pinpoint specific deficiencies and address them appropriately.

Conclusion: 

Urea fortification with micronutrients and secondary nutrients has the potential to revolutionize Indian agriculture, addressing soil deficiencies, and enhancing overall fertilizer efficiency. However, for the widespread adoption of such fortified fertilizers, a multi-pronged approach involving farmer education, subsidies, and improved distribution networks might be required. As India moves towards sustainable agricultural practices, embracing fortified urea will play a pivotal role in ensuring food security and sustainable soil health.