The costs of obtaining a given level of accuracy in estimating yields of tree fruit might be lowered by the use of photographs or supplemental information on fruiting potential. A small-scale experiment of this sort is described for peaches and apples. A procedure for evaluating the relative...

Although many statistical surveys and experimental studies have been and are being conducted for many segments of the economy, including agriculture, standard errors are seldom computed. Estimates of these errors are frequently needed to evaluate survey results and for the planning of future...

As part of the expanded research program in the Agricultural Estimates Division, Agricultural Marketing Service, United States Department of Agriculture, extensive plant observations were made over the old Cotton Belt during the 1954 season. The data were studied in relation to final yields so...

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...

Comparisons are here made of different methods of estimating the number of cherry trees in a survey of commercial orchards. The author also discusses some problems encountered in the use of lists and gives a comparison of costs when the mailed questionnaire and the interview sample of...