ABSTRACT
Land is a simple category in the sense that only one group of data is of interest, the acreages of crops grown in the system. It is simple also in the sense that it can be covered by fully objective measurement techniques under a wide range of survey conditions. Presurvey investigation will be by interview locally, and agricultural officials with long service in the area will be the best respondents. Presurvey questioning under both agronomy and food supply categories will provide important pointers to detailed subpopulations in terms of food supply, insurance, and fertility objectives pursued by specific activities. The category of land use throws up important limitations on survey design. The usefulness of limited visit surveys is restricted by a flow of irregular events, in this case crop establishment, over the whole production period.
