Context: A recent study by Punjab Agricultural University (PAU), Ludhiana, published in the journal Plant Soil, found that nano-urea led to reduced yields in wheat and paddy and decreased protein content by 35% in rice and 24% in wheat.
What is Nano-Urea?
- Definition: A liquid nitrogen-based fertilizer that is applied via foliar spray instead of traditional soil application.
- Launched By: IFFCO in 2022, backed by the Department of Fertilizers, Government of India.
Key Findings from Recent Study
- Yield Reduction: Nano-urea application reduced wheat and paddy grain yield compared to conventional urea.
- Lower Protein Content: Protein levels in rice and wheat dropped by 35% and 24%, respectively.
- Poor Nitrogen Absorption: The plants failed to effectively utilize the sprayed nano-urea, relying instead on soil nitrogen.
- Impact on Root Development: Root length and dry weight decreased, reducing overall nutrient uptake.
- Unproven Efficiency: Despite IFFCO’s claims, no substantial evidence supports nano-urea as a viable replacement for traditional urea.
Relevance in UPSC Exam
- Agriculture & Economy: Impact of fertilizer policies on food security and farm productivity.
- Science & Technology: Role of nano-fertilizers in sustainable agriculture.
- Environment & Sustainability: Challenges in reducing chemical fertilizer dependency.
- Government Policies & Schemes: IFFCO-backed initiatives and fertilizer subsidies under the Department of Fertilizers.
