m 



35. Dalrymple, D. G. I97I. Survey of multiple cropping in less deve- 



loped nations. USDA and USAID, Wash. D. G. 



36. Davis, D, R. , and J. E. Mickelson. 1969- A climatological summary 



for the North Florida Experiment Station. North Florida Expt. 

 Sta. Mimeo Rpt. NFS 64-1, Quincy, Fl. 



37. Dillon, J. L. 1976. The economics of systems research. Agr. 



Systems 1:3-20. 



38. Dodd, D. R., and G. G. Pohlman. 1935. Some factors affecting the 



influence of soybean, oats, and other crops on the succeeding 

 crop. West Virginia Agr. Expt. Sta. Bui. 265. 



39. Doll, E'. C., and L. A. Link. 1957. Influence of various legumes 



on the yields of succeeding com auid wheat and nitrogen con- 

 tent of the soil. Agr on. J. i|-9: 307-309- 



40. Downs, D. B. , H. G. M. Jacobson, and P. E. Waggoner. I962. Rota- 



tions, organic matter, and vegetables. Conn. Agr. Expt. Sta. 

 Gir. 220. 



41. Dubetz, S., G. C. Kuzub, and J. F. Dormaar. 1975. Effects of 



fertilizer, barnyard manure, and crop residues on irrigated 

 crop yields and soil chemical pronerties. Can. J. Soil Sci. 

 55:481-490. 



42. Sdmond, G. D. 1979. Highlights of the small farmer program in 



IF AS, 1974-78. Center for Community and Rural Development. 

 Florida Coop. Ext. Ser. , Univ. of Florida, Gainesville. 



43. Everett, P. H. 1978. Fertilizing tomatoes or cucumbers as second 



crops on plastic mulched beds. Proc. Fla. State Hort. Soc. 

 91:317-319. 



44. Feuer, R. , and R. A. Obordo. 1972. The multi-purpose "Rice 



Microkits". Agron. Abst. Am. Soc. of Agron. Madison, W. 



45. Florida . Agricultural Statistics. 1978. Vegetable summary. 



Florida Crop and Livestock Reporting Service, Orlando, Fl. 



46. Florida Vegetable Report. I978-79. Federal Market News Service. 



North Palm Beach, Fl. 



47. Food and Fertilizer Technology Center of the Asian and Pacific 



Region. 1974. Multiple Cropping Systems in Taiwan. Taipei, 

 Taiwan, Rep. of China. 



43. Francis, G. A. 1974. Impact of new technology on small -farm 



agriculture, p. 433-444 in Proc. International Workshop on 

 Farming Systems. ICRISAT, Hyderabad, India. 



