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House of Representatives Standing Committee on Agriculture, Resources, Fisheries and Forestry Inquiry into the Australian Centre for International Agricultural Research Annual Report 2011-12
Knowledge of Africa’s complex farming systems, set in their socio-economic and environmental context, is an essential ingredient to developing effective strategies for improving food and nutrition security. This book systematically and comprehensively describes the characteristics, trends, drivers of change and strategic priorities for each of Africa’s fifteen farming systems and their main subsystems. It shows how a farming systems perspective can be used to identify pathways to household food security and poverty reduction, and how strategic interventions may need to differ from one farming system to another. In the analysis, emphasis is placed on understanding farming systems drivers ...
Biological nitrogen fixation. Why, when an how to measure nitrogen fixation. Analysis of nitrogen. Nitrogen Balance Method. Nitrogen Difference method. Ureide (N solute) metode. N-isotopic methods. N-abundance method. N isotopic ditution method. prcaution whenquantifying N2 fixation associated with no-nodulatin plants (associative N2 fixation). Assays of nitrogenase activity.