This book focusses on the thermodynamics of soil nutrient bioavailability, and in particular the most important plant nutrients such as, phosphorus and potassium, among major nutrients, and zinc among micronutrients. It proposes a paradigm shift in the approach to global soil testing procedures. Historically, soil testing has been used to quantify availability of essential plant nutrients to field-grown crops. However, contemporary soil tests are based on philosophies and procedures developed several decades ago, without significant changes in their general approach. For a soil test to be accurate, one needs to clearly understand the physico-chemico-physiological processes at the soil-root interface and, an understanding of soils and plant root systems as polycationic systems is essential. It is this knowledge that leads to sound prescriptive soil nutrient management inasmuch as soil nutrient bioavailability vis-à-vis fertilizer application is concerned, because, of all the factors which govern sustainability in crop production, the nutrient factor is the most important, yet, it is also least resilient to management. This book provides a clear scientific basis of the thermodynamics of soil nutrient bio availability, which routine soil testing does not provide

This richly illustrated edition of an established classic deals with the chemistry and biology of soil nutrient availability. Provides information regarding the elements present in soils and the extent to which these elements can be used by plants in order to grow. Nutrient uptake by plant roots, rhizosphere microorganisms and application of the mechanistic uptake model as well as such elements as phosphorus, potassium and water are among the topics discussed.

Reviews the fundamental concepts of chemical thermodynamics, relating them to soils and soil solutions and goes on to discuss the application of chemical thermodynamics to solubility, electrochemical, and ion-exchange in soils.

This book conceptualizes a revolutionary idea based on a mechanistic-mathematical model in which the “Buffer Power” of the principal and problematic nutrients like phosphorus, potassium and zinc is quantified. This is achieved by using either a very sophisticated technique, electro-ultra-filtration, or a simple adsorption-desorption equilibrium technique, and by integrating the “Buffer Power” of the nutrient in question into the computations, accurate fertilizer recommendations are made. This technique was field tested across Europe, (Germany and Belgium), Africa (The Republic of Cameroon), and Asia (both Central Asia- Turkey and South Asia-India), during a period of three decades in test crops, such as, summer rye (Secale cereale), maize (Zea mays), wheat (Triticum aestivum), white clover (Trifolium repens), a highly nutritious and palatable fodder crop for Africa, black pepper (Piper nigrum) and cardamom (Elettaria cardamomum). Remarkable precision in predictability of plant uptake of phosphorus, potassium and zinc was obtained employing the technique. “The Nutrient Buffer Power Concept” project was shortlisted for the very prestigious U.S. $1 Million Rolex Awards For Enterprise of The Rolex Foundation, Geneva, Switzerland, for its outstanding originality and quality from more than 3500 nominations worldwide and is the only project chosen for this very coveted distinction from the Asian continent.

This book will address the importance of the soil management concept, vis-à-vis chemical fertilizer use on soil. Historically, soil testing has been used to quantify bio availability of plant nutrients to field grown crops. However, contemporary soil tests are based on philosophies and procedures developed several decades ago without significant changes in their general approach. For a soil test to be accurate, one needs to clearly understand the physico-chemico-physiologic processes at the soil-plant root interface, and, an understanding of soils and plant root systems as polycationic systems is essential. It is this knowledge that leads to sound prescriptive soil management practices inasmuch as nutrient bioavailability vis-à-vis chemical fertilizers application is concerned, because, of all the factors that govern sustainability of crop production, the nutrient factor is the most important, yet, it is also the least resilient to effective management. The author’s research spanning over three decades in Europe, Africa and Asia, establishes the fact that precise quantification of the nutrient’s “buffer power” holds the key to a clear understanding of the plant bioavailability of some of the most important plant nutrients in crop production, such as, phosphorus, potassium and zinc. “The Nutrient Buffer Power Concept” attempts to clearly explain the bio availability of the three plant nutrients named above on the basis of the diffusion model, as that is the process by which these three important principal plant nutrients are absorbed from the soil by the plant root. Possibly, other plant nutrients which are taken up by the plant roots by the same diffusive model, would also conform to the principles of the concept. A thorough knowledge of thermodynamic principles on the part of the researcher is an absolute pre requisite for this. The book chronicles more than three decades of the professional journey of the author in Europe, Africa and Asia, understanding soil for human sustenance, and developing the revolutionary soil management concept, now globally known as, "The Nutrient Buffer Power Concept" , which has brought the author a string of international recognitions, including the nomination for the "Alternative Nobel Prize" (The Right Livelihood Award),of Sweden, and succour to millions to poor and marginal farmers across Africa, Asia and Latin America.

Soil chemistry in relation to inorganic nutrition of plants. Factors affecting availability of inorganic nutrients in soils with special reference to micronutrient metals. The soil model and its application to plant nutrition. Role of the organic cycle in fluctuations of crop yield. Nutrient pools and their equilibria. Organic matter and nutrient supply. Radio-isotopic and chemical methods of measuring plant-available nutrients. Physico-chemical approach of determining nutrient availability. Soil nutrient mobility and transport processes. Modifying influence at the soil-root interface: root physiology and rhizosphere microorganisms.

This book catalogues the multi-scale impact of agronomy and economy on Cardamom, known as the “Queen” of spices. Cardamom is the second most important spice crop in the world, after Black pepper, known as the “King” of spices. Spices were the symbols of luxury and royalty, and cardamom was used in the manufacture of perfumes during the Greek and Roman times. It became one of the most important Oriental spices used in both Greek and Roman cuisine as well as its pharmacological applications. The book is divided into 15 chapters and concentrates on aspects of cardamom production and processing, the taxonomic aspects of cardamom, chemistry, pathology, entomology and is concluded with the future of cardamom. Special emphasis is given to the utility of “The Nutrient Buffer Power Concept”, a soil management technique in precise fertilizer management, especially with regard to Potassic fertilizers in cardamom production.