Hanuman Singh Jatav is an Assistant Professor in the Department of Soil science and Agricultural Chemistry, Sri Karan Narendra Agriculture University, Jobner Jaipur (Rajasthan), India. He has completed his M.Sc. (Ag.) and Ph.D. from Department of Soil Science and Agricultural Chemistry, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India. He has been awarded a Certificate of Gratitude as an Ambassador by IUCN: International Union for Conservation of Nature- Gland, Switzerland (https://www.iucn.org/) in the World Conservation Congress during Global Youth Summit. Considering his work he has been also awarded Outstanding Assistant Professor of the Sri Karan Narendra Agriculture University, Jobner Jaipur (Rajasthan) India.

Tatiana Minkinais the Head of Soil Science and Land Evaluation Department of Southern Federal University, Russia.

Satish Kumar Singh started his professional career in 1990 as Lecturer of Agricultural Chemistry in Amar Singh (PG) College, Lakhaoti, Bulandshahr. Subsequently, he joined as Associate Professor G.B. Pant University of Agriculture and Technology, Pantnagar (Uttarakhand) in 1999 and as Professor at Banaras Hindu University, Varanasi in 2006. Prof. Singh is Fellow of Indian Society of Soil Science, New Delhi and Indian Society of Agricultural Chemists, Allahabad.

Bijay Singh, a soil chemist by training and one of the ten National Professors of the Indian Council of Agricultural Research during 2006 to 2012, is presently associated with Punjab Agricultural University, Ludhiana (Punjab, India) as INSA Honorary Scientist.

Vishnu D. Rajput is working as a Leading Researcher (Associate Professor), Head of 'Soil Health Lab' at Southern Federal University, Rostov-on-Don, Russia.