Bøger i Developments in Plant and Soil Sciences serien

With the rapid increase in the use of fertilizer nitrogen, more attention has been paid to the rela tionship between nitrogen management and environmental quality and human of soil nitrogen has become more comprehensive with health.

This Fertilizer Manual was prepared by the International Fertilizer Development Center (IFDC) as a joint project with the United Nations Industrial Development Organi zation (UNIDO).

This publication comprises the proceedings of the first International Conference devoted to the structural roots of trees and woody plants. The structure and function of woody roots was also considered at different levels, from coarse to fine roots, with several papers discussing the interaction between roots and the rhizosphere.

Selected Papers from an International Symposium held at East Lansing, Michigan, USA, May 1993

Proceedings of the 15th North American Symbiotic Nitrogen Fixation Conference held at North Carolina, USA, from August 13-17, 1995

Proceedings of the International Symposium `Fertilizers and Environment', held in Salamanca, Spain, 26-29 September 1994

This predicament is mainly caused by low inherent soil fertility, limited and unpredictable rainfall, frequent droughts, and wind erosion that accelerates soil degradation and desertification, compounded by To assure food production in the future, means rapidly growing populations.

Proceedings of the International Symposium on Nitrogen Economy in Tropical Soils held January 9-14, 1994 in Trinidad, W.I.

Proceedings of a Workshop held at the Institute for Soil Fertility Research, Haren, the Netherlands, June 5-6, 1990

Proceedings of a Workshop on the Role of Legumes in the Farming Systems of the Mediterranean Areas, UNDP/ICARDA, Tunis, June 20-24, 1988

Proceedings of the 3rd International Conference on Mycorrhizas (ICOM3), 8-13th July 2001, Adelaide, Australia

Meeting of Commissions III and IV of the International Society of Soil Science jointly with the British Society of Soil Science

Proceedings of the Workshop on Frankia Symbioses, Wageningen, The Netherlands, September 5-6, 1983

Proceedings of a Meeting of the IUFRO, Working Party on Root Physiology and Symbiosis

The idea of addressing the problem of the genetic specificity of mineral nutrition at an international level arose four years ago in a proposal for this topic to be included in the program of the II Congress of the Federation of European Societies for Plant Physiology (FESPP) as a separate section.

The large and rapidly expanding body ofliterature related to nitrogen cycling in both managed and native terrestrial ecosystems reflects the importance accorded to the behaviour of this vital and often limiting nutrient.

Symposium on the Physiology and Bio-Chemistry of Plant Productivity

The discovery of the reduction of acetylene to ethylene by nitrogenase provided the ideal answer to the problem by provid ing a rapid, specific, nondestructive, and inexpensive assay for nitrogenase activity.

Proceedings of the International Conference on Effects of Crop Rotation on Potato Production in the Temperate Zones, held August 14-19, 1988 Wageningen, the Netherlands

Proceedings of the International Symposium on Manganese in Soils and Plants held at the Waite Agricultural Research Institute, The University of Adelaide, Glen Osmond, South Australia, August 22-26, 1988, as an Australian Bicentennial Event

Proceedings of the International Symposium Plant and Soil: Interfaces and Interactions, Wageningen, The Netherlands, August 6-8, 1986

Proceedings of the First International Symposium on Foliar Fertilization, organized by Schering Agrochemical Division, Special Fertilizer Group, Berlin (FRG), March 14-16, 1985

Proceedings of a Symposium, held in Lome, Togo, March 25-28, 1985

The steadily increasing cost of nitrogen fertilizer has resulted in more emphasis on basic and applied studies to improve nitrogen use efficiency in lowland rice.

Proceedings of the International Symposium on Frankia and Actinorhizal Plants, held in Montmorency Forest, Laval University, Quebec, Canada on August 5-9, 1984

The formation of roots is in some respects one of the least fundamentally understood of all plant functions. Pandanus trees tend to have stout aerial roots issuing from the bases of the long branches, while the tangle of roots around the trunk of many of the Ficus species is characteristic.

It has long been recognized that soil organic matter is the key to soil fertility. But it has another property, the nature and extent of which have been the subject of argu ment and controversy ever since scientists began to study the soil, and that is its ability to affect growth directly, other than by providing nutrient elements.

ICARDA has the serious and urgent responsibility for increasing the quantity and availability of food in the extensive North Africa-West Asia region, and therefore must give high priority to optimising the use of soil water and nitrogen which are considered to be among the main limiting factors to production.

Broader in scope than classic references, this volume looks at the rhizosphere as a holistic entity by incorporating concepts from molecular biology. The text also identifies concepts that could lead to new management methods in ecological engineering.