40 



UNIV. OF N. H. AGR. EXPERIMENT STATION 



[Bulletin 221 



It seems desirable to continue the Durham plots another year at least 

 without top-dressing to check up further on the residual value of the 

 green manure. Plowing and reseeding the whole area may seem desirable 

 later. 



A brief summary of treatments and yields to date on the twentieth- 

 acre plots involved in this project is shown in Table XXIII. 



Table XXIII — Treatments and yields in sail fertility plots 

 Hay yields in pounds per acre 



Yields by fertilizer treatments 



Treatments (1923) 



in pounds: A B 



R. R. Phoe 500 500 A. P. 



Gypsum 500 



NaNo' 100 



Raw Rock . . . 500 

 Gypsum 500 



D 



NaNo» . . 100 

 A. P 500 



E 

 Nothing 



All plots limed. 



In 1924 all plots, except Series E, were top-dressed with nitrate of soda at the rate of 100 pounds per acre. 



No top-dressing was done in 1925. 



Untreated plots outside the area plowed used as checks yielded at the rate of 290 pounds per acre. 



TESTING AND INSPECTION SERVICE 

 Feeding-stuffs and Fertilizers {Miscellaneous Income) 



The usual analyses of feeding-stuffs and fertihzers were made for the 

 State Department of Agriculture and the results of these have been pub- 

 lished. In addition a number of miscellaneous samples of feeds, fertilizers, 

 limestone and soil, involving about 150 individual determinations, were 

 made. The work was done by T. G. Phillips, T. O. Smith, S. R. Shimer 

 and J. R. Sullivan. 



Seed Tests {Miscellaneous Income) 



During the season 420 samples of seed were handled by M. G. Eastman; 

 of these 350 were official samples for the State Department of Agriculture, 

 and the results of the findings have been published. The seed-testing 

 laboratory has been recently remodeled. An imported Hearson incubator 

 for germinating seeds, a Spencer binocular microscope and a chai no- 

 meter analytical balance have been installed. The laboratory was placed 



