The Giant Hogweed Heracleum mantegazzianum is a pernicious invasive species, with significant impact on human health due to its phytoxic sap. From its native area, the Caucasus, it has spread across Europe creating serious environmental and health problems. This book, the output of a three-year EU project involving 40 European experts, is an authoritative compendium of current knowledge on this amazing invasive plant and will facilitate improved management. It is an invaluable resource for both practitioner and student, and covers topics including taxonomy, genetics, reproduction, population ecology, and invasion dynamics. It also reviews the possibilities of mechanical, chemical and biological control.
Hedging Against Inflation: Anticipating the Future, a Business Guide to Managing the Effects of Cost Price and Parity Changes
Agricultural Science: A Revision Scheme for Students Preparing for the West African School Certificate Examination ('O' Level) and the East...
Stakeholder Approaches to Planning Participatory Research by Multi-institution Groups
Pollen analysis by Jacobs on the fill of residual channel b , as well as research at Houten Oudwulverbroek and at Wijk bij Duurstede , demonstrated the absence of dense woodland in the central river area . 619 Hence it seems more likely ...
A través de su postura y de las que posteriormente hacen el capitán Sebastián Fernández Farías , el capitán Pedro Montero , Luis de Ceballos Ruiz , receptor de las alcabalas , el capitán Alonso Carrió de Valdés , encomendero y sargento ...
Cooper , D. 1980 . How urban workers in Botswana manage their cattle and lands : Selebi - Pihkwe case studies . Working paper , No. 4 . Central Statistics Office , Gaborone . Cooper , D. 1982. Socio - economic and regional factors of ...
Pearson Education, Upper Saddle River, New Jersey. Manlay, R., Masse, D., Chotte, J.-L., Feller, C., Kaire, M., Fardoux, J. and Pontanier, R. (2002) Carbon, nitrogen and phosphorus allocation in agro-ecosystems of a West African savanna ...
This new edition provides examples not only from the farm, but also throughout the entire food and fiber industry and features updated chapters on natural resources and the government's role in agriculture.
... principalmente a la emigración , que ha tenido una tasa anual promedio de 2.1 % por la década de 1950-1960 y de 3.7 % para 1960-1970 ( tasa de migración calculada con y base en la fórmula presentada en Stoltman y Ball 1971 ) .
Rural Economic Situation: Submission to the National Rural Advisory Council (August, 1975)