British Poultry Standards 6th edition is the official reference to all the recognised Poultry Standards in Great Britain. It contains complete specifications together with judging points for all standardised breeds and varieties, as compiled by the specialist Breed Clubs and recognised by the Poultry Club of Great Britain. Breeding and exhibiting poultry is a long-held tradition as well as a popular and rewarding hobby. The work of the Breed Clu ...
Trace elements occur naturally in soils and some are essential nutrients for plant growth as well as human and animal health. However, at elevated levels, all trace elements become potentially toxic. Anthropogenic input of trace elements into the natural environment therefore poses a range of ecological and health problems. As a result of their persistence and potential toxicity, trace elements continue to receive widespread scientific and legis ...
Fruit development and seed dispersal are major topics within plant and crop sciences research with important developments in research being reported regularly. Drawing together reviews by some of the world's leading experts in these areas, the Editor of this volume, Lars Ostergaard has provided a volume which is an essential purchase for all those working in plant and crop sciences worldwide. ...
A functional discussion of the crop selection process for biomass energy The Selection Process of Biomass Materials for the Production of Bio-fuels and Co-firing provides a detailed examination and analysis for a number of energy crops and their use as a source for generating electricity and for the production of bio-fuels. Renowned renewable energy expert and consultant Dr. Najib Altawell begins with the fundamentals of bio-fuels and co-firing ...
A decade ago no one except geologists had heard of tantalum or 'coltan' – an obscure mineral that is an essential ingredient in mobile phones and laptops. Then, in 2000, reports began to leak out of Congo: of mines deep in the jungle where coltan was extracted in brutal conditions watched over by warlords. The United Nations sent a team to investigate, and its expose of the relationship between violence and the exploitation of coltan and other n ...
Plants are sources of nourishment for thousands of fungi, bacteria, invertebrates, vertebrates, and other plants. Plants possess a truly remarkable diversity of mechanisms to fend off attackers and recent research has shown just how complex and sophisticated these defense mechanisms can be. Plant Defense provides comprehensive coverage of the range of different organisms that plants need to fend off, describes how plants coordinate their defense ...
Baume gehoren zu den gro?ten Lebewesen auf unserem Planeten. In faszinierender Weise haben diese langlebigen Organismen Strategien entwickelt, nachhaltig zu uberleben und Widrigkeiten, denen sie durch ihre Ortsgebundenheit ausgesetzt sind, standzuhalten. Wie lebende Skulpturen konnen Baume ganze Lebens- und Leidensgeschichten erzahlen. Die Neuaufl age des praxisnahen Ratgebers erlautert in uber 500 Eintragen pragnant die Symptome ihrer Korperspr ...
The control of diseases in crops is still largely dominated by the use of fungicides, but with the increasing incidence of fungicide resistance, plus mounting concern for the environment resulting from excessive agrochemical use, the search for alternative, reliable methods of disease control is gaining momentum. The purpose of this important book is to examine the development and exploitation (or potential for exploitation) of a range of non-ch ...
В книге рассмотрен комплекс проблем, связанных с оценкой углеродного бюджета лесов, болот и сельскохозяйственных земель России. Приведен детальный обзор источников первичной информации, которые могут быть использованы при построении региональных и национальных бюджетов углерода. Осуществлена оценка динамики основных пулов и потоков углерода в российских лесах за период с 1966 по 2003 гг., обсуждается влияние на углеродный бюджет изменений землеп ...
