Kellerman k f (5 résultats)

HRD. Etat : New. New Book. Shipped from UK. Established seller since 2000.

HRD. Etat : New. New Book. Shipped from UK. Established seller since 2000.

Paperback. Etat : New. Print on Demand. This book by the author takes a fascinating look at the evolution of soil bacteriology and its impact on agricultural production. Throughout history, human civilization has relied on agriculture as its foundation, while at the same time, humanity's understanding of the natural world that sustains us has progressed at a glacial pace. This book explores the historical development of humanity's understanding of soil bacteriology in relation to crop production, beginning with the recent discovery that soil is alive with unseen microorganisms. The author explores the work of scientists who dedicated their lives to unraveling the mysteries of the microbial world, placing their work in the context of the broader development of scientific thought. Their discoveries and the knowledge gained have ultimately led to innovative agricultural techniques and methods that have allowed civilizations to flourish, particularly in locations where the challenges of food security are most prevalent. This book is a valuable resource for anyone interested in the history of science and agriculture, particularly the role of soil bacteriology in feeding the world's population. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.…

Paperback. Etat : New. Print on Demand. This book presents comprehensive research into the role of bacteria in soil fertility and plant nutrition. The author examines the historical importance of legumes in maintaining soil health and rejuvenating depleted land, highlighting the significance of symbiotic bacteria in these processes. Whether through soil transfer or the application of bacteria cultures, the author emphasizes the multifaceted benefits of introducing these bacteria into the soil, including enhanced crop yields and reduced reliance on chemical fertilizers. The book delves into the scientific principles underlying bacterial activity in the soil, exploring their ability to fix atmospheric nitrogen and produce growth-promoting substances, and discusses the implications for agricultural practices, particularly in the context of increasing global food demand. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.…

Pamphlet. Etat : Collectible; Very Good. Prompt Shipment, shipped in Boxes, Tracking PROVIDEDOffprint. USDA Bureau of Plant Industry, December 2, 1933. Signed by Kellerman. First separate edition. Offprint. Original wrappers. *. First edition. Signed.