110 



ON KESULTS OF EXPERIMENTS WITH 



a tabulated form, with average analyses of the various manures, 

 the cost of each for net cash delivered, and the weight I have 

 found it profitable to apply : — 



Description of Manures, 



I. Sulphate of ammonia, 

 Dissolved bones, . . 

 35% superphosphate, 



II. Peruvian guano, . . 

 Dissolved bones, . . 



III. Peruvian guano, . . 

 357o superphosphate, 



IV. Peruvian guano, . . 



V. Nitrate of soda, . . 

 Dissolved bones, . . 

 35°/„ superphosphate, 



VI. Dissolved bones, . . 



VII. 35"/^ superphosphate, 



Cwts. 



1 



H 

 H 



2 

 2 



2 

 2 





Nitrogenous 



compounds = 



to ammonia. 



y 7-50 



I 6-50 



I 5-00 

 10-00 



j> 7-00 



3-00 



Total of 

 I'hos- 

 phates. 



26-00 



31-50 



31-50 

 28-00 



26-00 



35-00 

 35-00 



By using the first four of the manures above specified, I have 

 reaped from twelve to twenty-four bushels of oats per acre more 

 than from the plots left without manure, and the crop was always 

 a week or ten days earlier harvested, more equally ripened, and a 

 better quality of grain, with fewer seconds amongst it. Notably 

 in 1874 the plot left without manure was almost totally ruined 

 with grub, and the manured portion next it (Peruvian guano, 3 

 cwt.) came away splendidly, with hardly a single plant touched 

 with grub. The earlier part of the season was comparatively 

 dry, and a heavy fall of rain in May was followed by a very hot 

 dry summer. The unmanured portion became of a yellow sickly 

 colour as soon as the plants had exhausted the food contained in 

 the kernel of the seed, and, ere the tender rootlets had had time 

 to extract sufficient nourishment from the soil to strengthen the 

 fibres against the grub, that pest had the plants almost all cut 

 over. So far as crop was concerned, it was practically a failure. 

 The manured portion, however, kept bright and green, threw out 

 its second leaf strong and healthy, and kept on growing. For 

 this year's crop (1878) I manured with No. I. mixture, at the 

 rate of about 3^ cwts. per acre, and although the grub was very 

 plentiful in the field, my crop remained comparatively uninjured, 

 and has turned out a very heavy one, and of splendid quality. 



