In a landmark moment for India's space ambitions, Indian astronaut Shubhanshu Shukla has blasted off to the International Space Station (ISS) as part of the Axiom-4 mission , marking the country's return to human spaceflight after a 41-year hiatus . This historic launch from NASA’s Kennedy Space Center in Florida has not only reignited national pride but also officially kickstarted India’s human spaceflight programme . The mission, operated by Axiom Space , includes a four-member international crew that will spend 14 days in orbit , conducting scientific research, outreach programs, and various commercial activities. This momentous occasion places India among a select group of nations capable of sending humans into space and reflects the growing prowess of the Indian space sector . A New Chapter: Shubhanshu Shukla and India’s Astronautical Comeback The last Indian to go to space was Rakesh Sharma in 1984, aboard the Soviet spacecraft Soyuz T-11. Now, in 2025, Shubhanshu...
Nano Urea – A Breakthrough or a Concern for Crop Yields?
Nano Urea, developed by the Indian Farmers Fertiliser Cooperative (IFFCO), is a nanotechnology-based fertilizer that aims to enhance nitrogen uptake in plants. However, recent studies suggest that its continued use may reduce rice and wheat yields, raising concerns over its long-term sustainability.
About Nano UreaDevelopment:
- Created by IFFCO, a leading fertilizer cooperative in India.
- Aimed at providing an efficient and eco-friendly nitrogen source for crops.
Composition & Properties:
- Contains 4% nitrogen in nano form.
- Particle Size: 20-50 nm, which enhances absorption and efficiency.
- Higher surface area and number of particles per unit area than conventional urea.
Higher Nutrient Use Efficiency (NUE)
- Improves nitrogen absorption, reducing excess fertilizer use.
Environmental Benefits - Reduces nitrogen loss through leaching and gaseous emissions.
- Minimizes groundwater contamination and air pollution.
Cost-Effective & Easy to Store - Requires lower dosages compared to conventional urea.
- Lightweight & Compact, making it easier to transport and store.
Reduced Crop Yields with Continuous Use
- Studies indicate a decline in rice and wheat productivity with prolonged exclusive use.
- Conventional urea provides a sustained nitrogen release, which nano urea alone may not replicate.
Uncertain Long-Term Effects - Limited large-scale studies on soil health and microbial activity.
- Potential nutrient imbalance if not supplemented with other fertilizers.
Adoption Challenges - Requires awareness & training among farmers for proper application.
- Needs field trials & regulatory approval before widespread acceptance.
While Nano Urea presents promising advantages, its sole usage might not sustain long-term crop yields. A balanced approach, combining nano urea with conventional fertilizers, may be necessary to ensure both productivity and environmental benefits. Further research and extensive field trials are essential before large-scale adoption.