ABSTRACT
Output is a measure of the performance of the system and quantifies the results of resource use levels of technology and management ability. The survey will measure interfarm variation in yield levels, but exaggerated precision in sampling is spurious if interseasonal variation is very large. Techniques for yield measurement range from estimation to crop cutting. Most of the necessary conditions for accurate measurement by crop cutting are known, many derived from the work of Mahalanobis at the Indian Statistical Institute and Sukhatme at the Indian Council of Agricultural Research. The use of marketing outlets for recording total output is a very easy alternative to any other collection technique, particularly where outlets are restricted and sellers are registered. Estimation techniques are the only alternative to market outlets for enumerating output data in limited-visit surveys. Presurvey investigation is mainly concerned to establish characteristics of the output data which will limit the choice of techniques for measurement.
