As part of its research program during the last 4 years, the Agricultural Estimates Division, AMS, has conducted extensive studies on objective yield forecasting methods for several important field crops. Some results of these studies on cotton in the South and on soybeans in the North Central...

An earlier paper' on this subject summarized results of studies on the 1954 crop in 10 Southern States. At that time three approaches to forecasting yield from plant observations were considered: (1) the multiple regression approach, (2) a "probability of survival" model, and and (3) an...