Wheat falls as weather outlook improves

Wheat for May delivery fell 18 cents, or 2.5 percent, to $7.025 a bushel. Wheat had fallen for four straight days before that.

May corn also fell, losing 5.25 cents to $7.0325 a bushel.

Soybeans were the outlier among agricultural commodities. The May contract rose 18.5 cents to $14.62 a bushel.

Prices for oil and key industrial metals fell Monday, as investors worried over U.S. spending cuts and a potential slowdown in China.

Palladium for June delivery fell $5.95 to $714.45 per ounce. April platinum fell $7.30 to $1,566.20 per ounce.

Benchmark oil for April delivery fell 56 cents to $90.12 a barrel in New York, a U-turn after two months of steep increases. The national average for a gallon of gas fell to $3.75 a gallon from $3.78 Friday. Brent crude, used to price many kinds of oil imported by U.S. refineries, fell 31 cents to $110.09 a barrel in London.

Prices for oil and industrial metals help reflect how investors feel about the economy. They're used in manufacturing, transportation and other activities that drive growth, so when their prices fall, it often means that investors expect the economy to slow down.