Srishti Kashyap (सृष्टि) 🦋

For generations, modern farming has relied heavily on energy-intensive synthetic nitrogen fertilizers. But groundbreaking work by one scientist is proving that nature’s own microbes can replace much of that dependence. Dr. Mariangela Hungria, a Brazilian microbiologist, has been named the 2025 World Food Prize Laureate for her pioneering research on biological nitrogen fixation. Her decades-long work shows how beneficial soil bacteria can naturally deliver nitrogen to crops, dramatically reducing the need for chemical fertilizers. Nitrogen is vital for plant growth, but producing synthetic versions is costly and emits massive amounts of greenhouse gases. Hungria dedicated more than 40 years to studying rhizobia — bacteria that form symbiotic relationships with legume roots (such as soybeans and beans). These microbes convert atmospheric nitrogen into a form plants can use, in exchange for sugars from the crop. Her practical innovations have delivered impressive results. Treating soybean seeds with specially selected rhizobia strains has increased yields by up to 8% while cutting fertilizer use. She also advanced the use of Azospirillum brasilense, another bacterium that enhances nitrogen uptake and promotes growth through natural hormone production. The impact has been transformative. Today, Hungria’s microbial inoculants are applied across more than 99 million acres (40 million hectares) of Brazilian farmland. This approach is estimated to save farmers around $25 billion each year in fertilizer costs and prevent more than 230 million metric tons of CO₂-equivalent emissions annually. When she began her career, many doubted that microbes could meaningfully compete with industrial fertilizers. Thanks to her persistence, Brazil has become a global leader in sustainable agriculture — proving that tiny bacteria can play a giant role in feeding the world more efficiently and cleanly. ["Dr Mariangela Hungria Named 2025 World Food Prize Laureate." FarmingFirst, 2026]

A vein finder that uses near-infrared light to show veins under the skin.