P.D. 31 7a 



Originally it was expected that records would be taken for three or more years. 

 Delay in sorting and curing the tobacco has made this impossible, and raised 

 question as to whether the method is entirely sound. The project will be dis- 

 continued in another year. 



7b. Investigation of the role of organic matter in the production of onions. 

 Part II, field work. Research Professor J. P. Jones. Attempts to maintain the 

 supply of organic matter by the use of different cover crops. To date the most 

 marked result is the raising of question as to the necessity of any particular provision 

 for the maintenance of organic matter in continuouslj^ cropped, heavily fertilized 

 onion soils. 



8. Study of the growth of onions as influenced by differential liming. Research 

 Professor J. P. Jones. 



9. Effect of varying the ratio, amount and concentration of plant nutrients 

 applied in onion growing. Research Professor J. P. Jones. 



11. Study of the effect of crops plus their specific fertilizers upon those which 

 follow, with special reference to tobacco. Research Professor J. P. Jones. Sup- 

 plements Agronomy 2, and is designed primarily to determine the influence of 

 different previous crops on the tobacco crop. 



15. A study of the relative efficiency of "based" and "unbased" sulfate of 

 ammonia as carriers of nitrogen. Professor A. B. Beaumont. 



16. Study of the relation of inorganic and organic toxins to brown root-rot of 

 tobacco. Research Professor J. P. Jones. 



17. The nitrogen intake of Havana tobacco. Professor A. B. Beaumont. 



18. Onion breeding work. Research Professor J. P. Jones. Owing to the fact 

 that very little onion seed is now raised in Massachusetts, growers are finding 

 poorer control over varieties and seed sources than was formerly the case. The 

 Station is attempting to determine the factors which lead to good type of a storable 

 market onion. 



19. The determination of the influence of varying the quantity of fertiHzer 

 nitrogen on the jdeld and quality of Havana tobacco when topped at different 

 heights. Research Professor J. P. Jones. 



20. Testing onion sets and seed in the greenhouse. Research Professor J. P. 

 Jones. By means of testing in the greenhouse it was hoped to get advance measure- 

 ments of seed and set potency in the growing of onions. To date the attempt 

 has been unsuccessful. 



Botany. 



3. Investigation of black root-rot of tobacco. Research Professor W. L. Doran. 

 Results thus far secured are reported in Bulletin 229, "Soil Reaction and Black 

 Root-Rot of Tobacco." 



9. Investigation of a carrot bHght. Assistant Research Professor E. L. Guba. 

 Carried out in cooperation with the Market Garden Field Station at Waltham, 

 and practically ready for publication. 



13. Ecological study of pasture vegetation. Director S. B. Haskell and Professor 

 A. V. Osmun. A brief progress report is printed in Bulletin 230, under the title 

 /Better Feed from Permanent Pastures." 



18. Control of diseases of greenhouse vegetables. Research Professor W. L. 

 Doran. 



18a. Investigation of downy mildews of cucumber and lettuce. Research 

 Professor W. L. Doran. 



19. Investigation of tobacco brown root-rot. Research Professor W. L. Doran. 

 Complementary to Agronomy 16, mentioned above. It represents one of three 

 diverse lines of attack on that problem. 



21. Investigation of the use of chemicals for eradication of nematodes and para- 

 sitic fungi in greenhouse soils. Assistant Research Professor L. H. Jones. 

 Plant and Animal Chemistry. 



4. Record of the Station herd. Professor J. B. Lindsey and Assistant Research 

 Professor J. G. Archibald. Consists in the routine measurement of feed consumed 

 and milk produced. The work has now been carried on for thirty-one years. 



14. A study of the availabiUty of soil potash with the object of developing a 

 system of diagnosis for soils of the State. Research Professor F. W. Morse. 



17. Investigation of the role of physical condition in artificial feeds for calves. 



