This book presents the latest research from around the world in the field of agriculture. Agricultural fungicides, for example, are considered with particular reference to mode of action and selectivity. The aspects of biological control are also illustrated, especially the bioherbicide strategy along with the commercial prospects, potentials, considerations, formulations, advances, disadvantages and research priorities with regard to bioherbicide development and/or usage for eco-friendly weed management. The present stage of knowledge of the nutritional and safety assessment of feed/food from genetically modified plants (GMP) are summarised as well. Additionally, the use of transgenic plants as hosts for producing recombinant therapeutic proteins and technical enzymes has been established over the past decade. Thus the transitivity observed in transgenic plants is also examined. Other chapters in this book present an analysis of the specific functions that are involved in land application systems for organic fertilisers and a review of available and emerging technologies in light of this analysis. The uses of green fluorescent protein (GFP) throughout the development of transgenic crops are also outlined, including its possible application in the selection of elite individuals, as well as its ecological studies aimed at GM crop safety.