2024-2025美国玉米收获品质报告

Developing a report of this scope and breadth in a timely manner requiresparticipation by several individuals and organizations. The U.S. GrainsCouncil (Council) is grateful to Steve Hofing, Lee Singleton, Lisa Eckel,Alex Harvey and Dee Ann Hoffman of Centrec Consulting Group, LLC(Centrec) for their oversight and coordination in developing this report.A team of experts provided analysis and writing support. External teammembers include Dr. Tom Whitaker, Dr. Lowell Hill, Dr. Marvin R. Paulsen,Dr. Fred Below and Juliann R. Seebauer. In addition, the Council isindebted to the Illinois Crop Improvement Association’s Identity PreservedGrain Laboratory (IPG Lab) and Champaign-Danville Grain Inspection(CDGI) for providing the corn quality testing services. Finally, this report would not be possible without the thoughtful and timelyparticipation of local grain elevators across the United States. We aregrateful for their time and effort to collect and provide samples during theirvery busy harvest time. As a USDA programs participant, the U.S. Grains Council is committed tocomplying with non-discrimination policies from federal, state and localcivil rights laws and those of the USDA. Visit the USDA website page(https://www.usda.gov/non-discrimination-statement) for details. 6Quality Test Results A.Grade Factors..................................................................................................6B.Moisture.........................................................................................................18C.Chemical Composition...................................................................................22D.Physical Factors............................................................................................32E.Mycotoxins.....................................................................................................49 59Crop and Weather Conditions A.2024 Harvest Highlights.................................................................................59B.Planting and Early Growth Conditions...........................................................60C.Pollination and Grain-Fill Conditions..............................................................62D.Harvest Conditions........................................................................................64E.Comparison of 2024 to 2023, 2022 and the 5-Year Average.........................66 68U.S. Corn Production, Usage and Outlook A.U.S. Corn Production.....................................................................................68B.U.S. Corn Use and Ending Stocks.................................................................71C.Outlook..........................................................................................................72 75Survey and Statistical Analysis Methods A.Overview........................................................................................................75B.Survey Design and Sampling........................................................................76C.Statistical Analysis.........................................................................................79 80Testing Analysis MethodsA.Grade Factors................................................................................................ 81B.Moisture.........................................................................................................82C.Chemical Composition...................................................................................82D.Physical Factors............................................................................................82E.Mycotoxins.....................................................................................................83 85Historical Perspective A.Grade Factors and Moisture..........................................................................85B.Chemical Composition...................................................................................86C.Physical Factors............................................................................................87D.Mycotoxins.....................................................................................................88 U.S. Corn Supporting InformationUSGC Contact Information The U.S. Grains Council is pleased to present findings from its 14thannual corn quality survey inthis2024/2025 Corn Harvest Quality Report. The Council offers this report to provide reliable and timely information about the quality of the U.S.corn crop and assist industry leaders in making well-informed buying decisions. Through trade, theCouncil is committed to the furtherance of global food security and mutual economic benefit. Despite relatively moist weather conditions in April and May, the 2024 U.S. corn crop was plantedat a pace similar to the average pace of the previous five crops. Warm temperatures persisted inJune, but ample moisture prevented widespread stress. July brought cooler temperatures acro