of Manures Applied to Pasture. 



53 



plot. The actual quantities were : 84 lbs. (17 lbs. N) at each 

 dressing at Cockle Park, 97 lbs. (20 lbs. N), at each dressing 

 at Sevington, and 70 to 84 lbs. (14 to 17 lbs. N) at each 

 dressing at Cransley. The aggregate cost per acre of the 

 four dressings on the price basis given at p. 21 was 36s. 

 at Cockle Park, 41s. 6d. at Sevington, and 30s. at Cransley. 

 At Yeldham and Downan, there being no dissolved bones to 

 consider, the quantity per acre of sulphate of ammonia used 

 at the former, and of nitrate of soda at the latter, was : — 



At Yeldham 100 lbs. sulphate of ammonia for the first and second seasons, and 



200 lbs. for the third season, at a gross cost of 42s. id. 

 At Downan i| cwt. nitrate of soda for the first, and I cwt. for the third seasons, 



at a cost of 22s. gd. 



At Yeldham the sulphate of ammonia was an addition to 

 superphosphate, while at Downan the nitrate of soda was 

 added to superphosphate and muriate of potash. 



The results of this test are set out in Table XXII. The 

 figures are given for each individual year in order that one 

 may see whether the nitrogenous manure was markedly more 

 effective in the season when it was used. The figures for 

 these particular years are put in italics, and it may at once 

 be said that there is no very distinct evidence of the manures 

 being more effective in the year of application than in other 

 years. 



As regards the aggregate effect on the production of mutton 

 it may be said that it is very different from what might have 

 been expected. At Cockle Park and Sevington the mutton 

 produced by superphosphate plus sulphate of ammonia is in 

 almost every year less in quantity than that produced by 

 superphosphate alone, and the drop in the aggregate yield is 

 very striking. At Cransley the sulphate of ammonia appears 

 to have added largely to the live-weight gains, but this result 

 is somewhat illusory, for the reason that the superphosphate 

 plot was partially spoiled for some years by the wet summer 

 of 1903 (see p. 16). At Yeldham, where sulphate of ammonia 

 was liberally used every year, a small live-weight gain over 

 superphosphate only was got two years in three. At Downan 

 there are both small gains and losses, the aggregate live- 

 weight increase being somewhat higher where nitrate of soda 

 was used than where it was withheld. 



