Crop Production and Storage

As land price decreases, variable costs are unaffected but several fixed costs are reduced (e.g., management, interest and taxes on land). For tuber production, total annual costs fell from 3,798.95 (land price of 2,500-ha1) to 3,676.70, 3,570.75, and 3,501.48 for land prices of 1,750 ha-1, 1,100-ha-1, and 675-ha, respectively. For the production of tops in large bales, annual costs fell from 1,492.14 (land price of 2,500-ha-1) to 1,369.89, 1,276.14, and 1,194.67 for land prices of 1,750 ha-1, 1,100-ha-1, and 675-ha, respectively. Fand prices tend to be cheaper in western Canada and other areas of eastern Canada. For instance, at 1990 prices, land in the less fertile eastern townships was around 1,000-ha, while marginal land in the eastern townships was around 675 ha-1. Total annual costs for the production of tuber and tops in large bales in western Canada, where Jerusalem artichoke is likely to be grown in rotation with cereals, were 3,879.03 and 1,577.66, respectively, for a land price of 1,000-ha In eastern Canada, the total annual 

Biology and Chemistry of Jerusalem Artichoke Helianthus tuberosus L. 

Annual Cost of Producing Jerusalem Artichoke Tubers and Tops in Large Bales, Given a Land Value of Canadian 2500 ha-1, in Quebec (1990 Costs) 

Plowing and vibroshank Spraying operations Planting and hilling 

Interest on operating capital (15.5%) Total variable costs 

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Biologically important industrial uses of infrared gas analyzers are the measurement of air pollution and the monitoring of atmospheres (fruit and crop production and storage). It is interesting to note that the use of a COj blanket inhibits deterioration of a banana cargo and apples stored in an atmosphere containing 1000 ppm v/v CO2 will keep almost indefinitely. 

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