共 6 条
[1]
Dyer E.B., McCutchen T., No-till field day draws a crowd at the Milan Agricultural Experiment Station, Soil and Water Conservation, (1983)
[2]
Jarnagin R.A., A study of field day booklets, Agricultural Communications Research Report, 3, (1962)
[3]
Jeter F.H., Diversified farm hosts ecology field day, Soil Conserv, 43, (1978)
[4]
Nafziger E.D., Use of demonstration plots as extension tools, J Agron Educ, 13, pp. 47-49, (1984)
[5]
Smith L., What can a field day do for me?, Cattleman, 56, 2, pp. 41-54, (1969)
[6]
Spielmann H., A Brief Discussion of the Concept of Marketing Farm and Horticultural Products, (1982)