Farm Level Corn Acreage Response Estimation

The Regional Distribution of Farm-Level Impacts from Acreage Set-Asides

Two Phase Sampling for Wheat Acreage Estimation

On-Farm Corn Rootworm Trials

Introduction There are several methods to manage corn rootworms, including crop rotation, rootworm insecticides, and corn rootworm (CRW) transgenic traits. The use of CRW transgenic traits in corn hybrids has allowed farmers to manage CRW without using soil-applied insecticides. However, rootworm populations resistant to the transgenic traits have been confirmed in Iowa, leading some farmers to...

On-farm Corn Rootworm Trials

Methods Eight CRW trials were conducted in Lyon, Sioux, Clay, Monona, Crawford, and Hancock counties in 2013 (Table 1). Some trials compared a CRW-Bt hybrid with and without an insecticide, and others also included a non-Bt hybrid with and without an insecticide (Table 2). In Trials 1, 3, and 7, Pioneer Herculex® hybrids were used. A non-Bt Pioneer hybrid (987HR) was included in Trial 7. In Tri...

Selecting Class Weights to Minimize Classification Bias in Acreage Estimation