A national study (the thirteenth annual study of its kind) examined the supply and demand for teachers of vocational agriculture in 1977. To obtain data pertaining to supply and demand for vocational agricultural teachers, researchers mailed questionnaires and follow-up letters and made telephone calls to all institutions preparing teachers in vocational agriculture as well as to the offices of state supervisors in agriculture. Information regarding numbers of graduates qualified to teach agriculture and the number of teaching positions available were then tabulated for each state and each institution preparing teachers. Data revealed that, while fewer persons were qualified to teach vocational agriculture in 1977 than were previously graduating, the percentage of individuals placed in vocational agriculture teaching positions remained steady. A turnover of 10.3 percent also contributed to a teacher shortage. Increased numbers of teachers were involved in instructing adults and young farmers as well as high school students. Also increasing were the numbers of positions in technical and community colleges. Recommendations called for increased efforts to recruit students into vocational agriculture education, to reduce teacher turnover, and to reduce the number of uncertified teachers. (MN)