But lately, with large increases in corn yields becoming the norm rather than an aberration, corn prices have dropped to their lowest level since the late 1990's.

Mr. Kielblock said that the sweet corn yields have been "great," but that it was a rough year for pumpkins.

Final figures for New Jersey's corn yield are not yet available because the growing season does not conclude until October.

Here in Kansas over the last 40 years, wheat yields have doubled and corn yields have increased sixfold.

They found that herbicides killed 50% to 70% of the mulches but corn yield was reduced 5% to 10% at the end of the harvest.

Cxc is also a mild plant pathogen and has been observed to depress corn yields.

"I foresee increased corn yields stemming from more kernels per ear and more ears per stalk," he said.

It is very short-sighted to pursue slightly higher corn yields and then have to pay billions of kroner in order to purify the groundwater.

This year the corn yield for grain is absolutely zero, and I don't think we'll get any soybeans either.

American corn yields rose by 30 percent from 1995 to 2005, while wheat yields grew by only 17 percent.