32 



UNIV. OF N. H. AGR, EXPERIMENT STATION [Bulletin 216 



1. Milk could be classified as follows: 



Poor milk — Decolorization time, up to two hours. 



Fair milk — Decolorization time, 2-5J hours. 



Good milk — Decolorization time, more than five hours. 



2. That there is a direct relation between reduction time and keeping 

 quality. 



3. That an initial acidity of .19 per cent or less gives no real indication as to 

 keeping quality of milk. 



Timothy Selection. 



Owing to the extremely dry weather of the past two seasons during June and 

 July, the young transplanted timothy plants have failed to survive. The work, 

 therefore, will have to be started anew from seed of the best parent plants 

 selected in 1922. 



Potash Tests on Potatoes. 



These tests were begun by F. W. Taylor (Agronomy) in 1922 on quarter-acre 

 plots. The object was to note the effect on yield of varying amounts of potash 

 with like amounts of nitrogen and phosphoric acid. Manure at the rate of 20 

 loads per acre was appUed to all of the plots. The potatoes this year were 

 planted May 21 and were dug October 8 to 10. The middle part of the season 

 was very dry, and the yields were hardly normal. There were no diseases, 

 except a Uttle early blight in patches. 



The following table shows the total yields per acre for the several treatments 

 for 1922, 1923 and 1924, with the average for the three seasons: 



Table XIX. 



The seed used in these tests was certified Green Mountain grown on the 

 University horticultural farm. While the results of these tests are not entirely 

 consistent, they seem to indicate that one year with another, where manure is 

 used for the potato crop, the supplementary fertihzer need not contain more 

 than 4 per cent of potash. 



Pasture Improvement. 



The one-eighth acre plots laid out in the "reservoir pasture" in 1922 for seed 

 and fertilizer treatments were carefully observed by F. W. Taylor during 1924. 

 No additional seed or fertilizer was applied. The plots which had received the 



