Investing.com - U.S. corn and soybean futures extended losses from the previous session on Tuesday, as a pickup in the pace of the U.S. harvest last week weighed on prices.
On the Chicago Mercantile Exchange, US corn for December delivery traded at $3.6863 a bushel during U.S. morning hours, down 4.78 cents, or 1.28%.
A day earlier, corn futures lost 3.2 cents, or 0.86%, to settle at $3.7340 a bushel.
The U.S. Department of Agriculture said on Monday that nearly 65% of the U.S. corn harvest was completed as of November 2, up from 46% in the preceding week and just 8% below the five-year average of 73% for this time of year.
Meanwhile, US soybeans for January delivery fell 9.45 cents, or 0.92%, to trade at $10.1975 a bushel.
Prices of the oilseed tumbled 19.4 cents, or 1.86%, on Monday to end at $10.2960 a bushel.
According to the USDA, approximately 83% of the U.S. soy harvest was completed as of last week, compared to 70% a week earlier and in line with the five-year average for this time of year.
Elsewhere on the CBOT, US wheat for December delivery shed 3.62 cents, or 0.67%, to trade at $5.3438 a bushel.
Prices of the grain tacked on 5.6 cents, or 1.08%, on Monday to close at $5.3820 a bushel.
Wheat prices were boosted amid concerns over the health of the harvest in major growers Russia and Australia.
Corn is the biggest U.S. crop, followed by soybeans, government figures show. Wheat was fourth, behind hay.