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Plant growth, vigour and yield are dependent upon the availability of a number of essential element nutrients. Detailed lists of these elements vary slightly but most sources identify three essential, non-mineral elements: carbon, oxygen and hydrogen; six major or macronutrients: nitrogen, phosphorous, potassium, sulphur, calcium...
A better understanding of soil microbiology is essential if agricultural production is to meet the needs of a growing world population.
Soil fertility comprises three interrelated components: physical fertility, chemical fertility and biological fertility. Biological fertility, the organisms that live in...
Levies and charges are taxes initiated by primary industries and imposed on the producers in that industry in order to pool resources and to find solutions to priority issues. This review examines the systems by which agricultural levies are monitored and enforced in order to...