Agronomy. 29 



istry will be taught to sophomores in^the first instead of the second 

 term. Agronomy 16, tropical agriculture, was this year offered as 

 a separate course of study for the first term. 



During December, Dr. Jacob G. Lipman, Chemist and Bacteri- 

 ologist at the New Jersey Agricultural Experiment Station, deliv- 

 ered ten lectures, conducted two seminars and eight laboratory per- 

 iods on the subject of soil bacteriology, which were attended by the 

 students of the department of agronomy. These scholarly lectures 

 presented the field of soil bacteriology as fully as the limits of time 

 permitted, and were a distinct addition to the work of this depart- 

 ment. 



II. Federal Experiment Station Work. 



As heretofore stated, the policy of the Department of Agronomy, 

 during the past four years, has been to direct its investigations 

 towards (i) the improvement of grasses and forage crops and the 

 determination of the best methods of culture and fertilizer, and (2) 

 the investigation of the best and most economical forms of concen- 

 trates with which to supplement the grasses and other forage crops 

 which this State raises in relative abundance. Certain investiga- 

 tions have also been in progress which have sought to determine 

 what are the differences in the essential factors of plant growth 

 under normal field conditions. The following is a list of the experi- 

 ments under way, completed, or projected during the present fiscal 

 year : 



I. Experiments begun prior to 1906 and to continue. 



( 1 ) Timothy, individual plants for variation and life history 



studies. 



(2) Clover, individual plants of varieties for variation and 



life history studies. 



(3) Soil fertility, an investigation into the causes of poor 



spots in fields. 



(4) Plant ecology, an investigation into the causes of weeds 



affecting the productivity of corn. 



(5) Corn types for student study and instruction. 



(6) Potato rotation on Dunkirk clay. 



(7) Grasses, growing of some sixty varieties for study and 



instruction. 



(8) Timothy, rate of seeding and yield of hay. 



(9) Timothy, selection for vigor of growth and yield. 



(10) Timothy, effect of fertilizers on yield of hay. 



(11) Timothy, selection of strains. 



