K. R. Krishna, PhD (Agriculture), is an agricultural scientist. His contributions deal with soil fertility, microbiology, agroecosystems, precision farming, farm robotics, and unmanned aerial vehicle systems. He has authored journal articles, refereed papers, books, and book chapters. He is a member of the International Society for Precision Agriculture, American Society of Agronomy, Soil Science Society of America, Ecological Society of America, and Indian Society of Agronomy and Soil Science Society of India. He has authored several books on international agriculture. He is retired from the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), India. He has received several awards for his contributions including Prof APJ Abdul Kalam Gold Medal in 2017 for his contributions to international agriculture and peace.