DEVELOPMENTS IN AGRICULTURAL AND MANAGED-FOREST ECOLOGY 25: humus, its structure and role in agriculture and environment
This volume presents the Proceedings of the Tenth International Symposium Humus et Planta held in Prague, August 19-23, 1991. The symposium was organized by the Research Institute of Crop Production, Prague, the Agricultural University, Prague, and several collaborating institutions. The main topics covered by the symposium were devoted to recent advances in fundamental, as well as applied humic substances research, the most abundant naturally occurring macromolecules, to our understanding of their nature and how they react and interact in their natural environment. Although humic substances have been studied for almost two centuries, our knowledge is still incomplete, because of the extreme complexity and diversity of individual humic substances, humic acids, fulvic acids and humins, and because of the multiplicity of the variable influences affecting their transformation. However, the pressing needs of agriculture and the management of the environment call for further progress in our knowledge of humic substances. These proceedings contain the full text of the introductory lecture surveying the progress of humic substances research over the last thirty years, during which previous Humus et Planta symposia have been held, and the full texts of the lectures given by outstanding scientists in five sessions. The first session dealt with the structure and the physical and chemical properties of humic substances, the second with the relationships among humus, soil properties and fertility, the third was focused on biotransformations of organic substances in the soil, the fourth on the relationships between humic substances and plants, and the last on the interactions of humus and xenobiotic substances. The lectures are supplemented with surveys of posters presented in the five sessions. A limited number of printed abstracts of all contributions to the symposium are available free of charge from the editor. This book presents recent knowledge on the complicated and challenging world of humic substances. It will be of interest not only to scientists and participants at the symposium, but also to university teachers and students of agricultural and environmental sciences.
Tidak ada salinan data
Tidak tersedia versi lain