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Grain & Oilseed Basics Module
This module is to acquaint you with various grains and oilseeds grown in the United States and discusses how the major grains (wheat and corn) and soybeans are handled, processed, and used in food, feed, and industrial markets. This grain module is brought to you by the
Iowa Grain Quality Initiative
and was produced by the former Crop Adviser Institute.
Click here to access the Grain & Oilseed Basics Module
Identify major grains and oilseeds. Understand the importance of production locations and harvest schedules in terms of both food safety and quality needs.
This modules describes quality factors and typical production, harvest, and handling procedures for wheat, corn, and soybeans. It also describes small grains such as barley, rice and millet, as well as other types of oilseeds such as canola, sunflower, flax, and cottonseed.
Grains and oilseeds:
Individual field loads are blended with those from other farms as they enter the marketing chain to be sold as a bulk commodity. Bulk commodities often pass through several handling facilities before reaching a user. At each point, grain lots are combined or divided as needed for efficient shipment to the next buyer.
USDA grade standards:
Grains are traded as bulk commodities using USDA Grade factors. Grade factors are determined by either official inspectors of the Federal Grain Inspection Service (FGIS), or by the buyer as determined by purchase contract. Factors considered under the Grades are: test weight, broken or split kernels, foreign material, damage, and odor. Buyers and sellers may also specify other factors in their purchase contract. For example, wheat is normally traded on protein content, while most other grains have no composition specification.
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Corn Processing Module
Oilseed Processing Module
Wheat Processing Module
Grain & Oilseed Risk Assessment Module
Whole Farm Conservation Best Practices Manual
CropsTV Season 3
Soybean Growth and Development
Corn Growth and Development
Soybean Growth and Development - Soybean Staging
Soybean Growth and Development - Key Growth Stages
Field Crop Production Handbook
Pasture Management Guide for Livestock Producers
Guide to Iowa Corn Planting
Crop Production Clipboard
A General Guide for Crop Nutrient and Limestone Recommendations in Iowa
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