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Grassland Ecology
註釋The individual plant. The plant population. Concepts of efficiency in primary production. Factors affecting efficiency in plant production. Natural grassland. Mixed populations of plant species. Grass as a cultivated crop. The fauna of grassland. Grass as a food for animals-ruminants. Grass as a food for animals-non-ruminants. The nutrient cycle. Grazing. Factors affecting the efficiency of utilization. Concepts of efficiency in secondary production. Factors affecting the efficiency od secondary production. Animal production from grassland-milk. Animal production form grassland-meat. Animal production form grassland-wood and hides. The contribution to man.