Measurement of energy flow through intensive agricultural systems

JOBS ARE CRUCIAL, IN THAT THEY TRIGGER RISING INCOMES, REDUCED MORTALITY, BETTER EDUCATION, EFFECTIVE FAMILY PLANNING, AND THUS CONTROL OF THE CURRENT "POPULATION EXPLOSION." BECAUSE MOST RESEARCH HAS BEEN CONCERNED WITH MAKING AGRICULTURE LESS LABOR-INTENSIVE, LITTLE HAS BEEN DONE TO ESTABLISH HOW IT CAN BE MADE BOTH MORE PRODUCTIVE AND MORE LABOR-INTENSIVE IN LDCS WITH SEVERE UNEMPLOYMENT PROBLEMS. AGRICULTURAL ECONOMISTS NEED TO MEASURE THE LABOR INPUTS ASSOCIATED WITH VARIOUS FARMING SYSTEMS. THIS APPROACH WAS FOLLOWED IN THE AUTHOR"S STUDY OF PHILIPPINE RICE FARMERS, AND IN RAPPAPORT"S STUDY OF NEW GUINEA YAM GARDENERS. THE MIX OF FARMING SYSTEMS IN THE DRY AND WET ZONES OF CEYLON IS WELL SUITED TO TYPES OF SAMPLING NEEDED TO OBTAIN THE DATA NEEDED. THE FARMING SYSTEMS, CROP CALENDARS, AND SAMPLING PLAN ARE DESCRIBED IN SOME DETAIL.