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Abstract

Excerpts from the report Introduction: Since 1965, increasing quantities of grain under Commodity Credit Corporation (CCC) loan are being held in farm-type bins. More effective and more economical fumigation procedures are needed to reduce storage and treatment costs in these low-capacity storage facilities. The value of forced-distribution method for applying fumigants to bulk grain in large storage structures has been demonstrated. To apply the same method of fumigation to grain stored in farm-type bins, more background information was needed on which to base sound recommendations. This report presents the results of fumigation studies that were conducted to determine which application method would consistently and uniformly distribute fumigants in small, farm-type storage bins. In addition, several simple types of aeration ducts were tested in the single-pass and closed-recirculation methods of fumigation so that the different patterns of distribution could be evaluated.

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