TAILIEUCHUNG - POSTHARVEST HANDLING FOR ORGANIC CROPS

Although production costs of organic specialty crops can be higher than conventional production, some organic commodity crops have lower costs of production than the same conventional crops. A recent study of corn and soybean production in Iowa found that organic farms had lower fertilizer and pesticide costs, but higher seed and machinery costs. On the average, the total cost of organic production was slightly lower than that of conventional production. A SARE- funded study of organic potatoes in Idaho found no overall difference in fixed and variable costs when compared to traditional production. A number of studies comparing organic. | Small Farm Program VEGETABLE RESEARCH AND INFORMATION CENTER Organic Vegetable Production in California Series POSTHARVEST HANDLING FOR ORGANIC CROPS TREVOR SUSLOW UC Cooperative Extension Vegetable Crops Specialist UC Davis Specific information on organic vegetable production practices in California is scarce and growers need sound information to guide their management decisions. The Organic Vegetable Production in California Series is made up of publications written by Farm Advisors and Specialists from the University of California s Division of Agriculture and Natural Resources. Each publication addresses a key aspect of organic production practices applicable to all vegetable crops. Optimal-quality organic produce that achieves the desired textural properties sensory shelf life and nutritional content is the combined result of careful implementation of recommended production inputs and practices careful handling at harvest and appropriate postharvest handling and storage. This publication is an overview of general postharvest handling considerations unique to the marketing of registered or certified organic produce with a brief introduction to currently permitted and restricted postharvest treatments. PLANNING FOR POSTHARVEST QUALITY The effort to achieve an economic reward through the marketing of organic produce must begin well before harvest. Seed selection can be a critical factor in determining the postharvest performance of any commodity. Individual cultivars vary in their inherent potential for firmness retention uniformity disease and pest resistance and sensory shelf life to list a few key traits. Cultivars chosen for novelty or heirloom traits may be suitable for small-scale production and local marketing but would be disastrous choices if the marketing plan included shipment to more distant markets. In addition to genetic traits environmental factors such as soil type temperature wind during fruit set frost and .

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