Extension Ag Update
September/October 2007
Articles Research Resources Internet Links Ag Facts Education

Internet Links

Online Nitrogen Rate Calculator

This web site provides a process to calculate economic return to N application with different nitrogen and corn prices and to find profitable N rates directly from recent N rate research data. The method used follows a newly developed regional approach for determining corn N rate guidelines that is being implemented in several Corn Belt states.

"Soybean Aphid -Aphis glycines Matsumura," Regional Pest Alert (RPA) series

This fact sheet provides a detailed profile of this pest’s ability of transmitting a number of viruses that infect soybean crops. The single page, illustrates its life cycle and origin, and then discusses plant symptoms caused by this unwelcome visitor. Field monitoring is a key to identifying the presence of A. glycines Control recommendations include a range of options. The RPA series is produced and distributed in cooperation with the U.S. Dept. of Agriculture Cooperative State Research, Education and Extension Service sponsored Regional IPM Program, and specifically the North Central IPM Center.

Farm Owner's Death: Can Tenant Continue Farming Under the Lease?

When an Illinois farmland owner dies, becomes mentally incompetent, or sells the farm, what is the effect on the tenant’s farm lease?  A new Agricultural Law and Taxation Brief (ALTB) entitled “Farm Owner's Death: Can Tenant Continue Farming Under the Lease?” is available on farmdoc

University of Illinois Ag Safety Web Site

Fact sheets include:

EPA Pesticides and Endangered Species Protraction Program Website Updated

EPA has updated and redesigned its Pesticides and Endangered Species Protection Program website to make it easier for visitors to find relevant information about the Program and to reflect enforceable limitations on pesticides that will be put in place through its Endangered Species Protection program (ESPP). Topics of Risk Assessment, Effects Determination and Species Information are highlighted.  There is also a section for kids to learn about endangered species.

U.S. Ethanol Expansion Driving Changes throughout the Agricultural Sector

A large expansion in ethanol production is underway in the United States, spurred by high oil prices and energy policies. Although corn is the primary feedstock used to produce ethanol in the United States, market adjustments to the ethanol expansion extend well beyond the corn sector to supply and demand for other crops, as well as to the livestock sector, farm income, government payments, and food prices. Adjustments in the agricultural sector to increased demand for biofuels will continue as interest grows in renewable sources of energy to lessen dependence on foreign oil.

Impact of Rising Natural Gas Prices on U.S. Ammonia Supply

The volatile and upward trend in U.S. natural gas prices from 2000-05 has led to a 17-percent decline in the Nation’s annual aggregate supply of ammonia. During the period, U.S. ammonia production declined 44 percent, while U.S. ammonia imports increased 115 percent. Also, the share of U.S.-produced ammonia in the U.S. aggregate supply of ammonia dropped from 80 to 55 percent, while the share from imports increased from 15 percent to 42 percent. Meanwhile, ammonia prices paid by farmers increased from $227 per ton in 2000 to $521 per ton in 2005, an increase of 130 percent. Natural gas is the main input used to produce ammonia. Additional increases in U.S. natural gas prices could lead to a further decline in domestic ammonia production and an even greater rise in ammonia imports.

Adoption of Genetically Engineered Crops in the U.S.

This data product summarizes the extent of adoption of herbicide-tolerant and insect-resistant genetically engineered crops in the United States. Data cover GE varieties of corn, cotton, and soybeans over the 2000-2007 period, by State.