EXPERIMENTAL STATIONS — REPORT FOR 1879. 



273 



On looking over the results of the ci'op])iii,^' at llarehiw, it is 

 noticetl that phjts 1 to 12 arc superior to all that follow. The 

 reason of that is that these twelve plots were sown nearly a fort- 

 nii^'ht earlier than the others, whose sowing was delayed by the 

 interference of a week of continuous rain. The sowing of the 

 yj-.y acre plots was also delayed a fortnight. 



On Punipherston the first plots also are the best ; but that is 

 due to a different cause. All were sown at the same time, but 

 ])lots 1 to 17 were lifted in January, while the others, owing to 

 a recurrence of Irost, remained in the ground till March. With 

 these explanations we may now examine the results a little more 

 ■closely. 



Let us take in the first place plots 1 to 10. These arc known 

 as the phosphate plots, and are set apart to determine the 

 relative efficiency of the various forms of phosphates of animal 

 and mineral origin, dissolved and undissolved. All these plots 

 received exactly the same amount of phosphoric acid, potash, and 

 nitrogen. The forms in whicli these were given, and the weights 

 per acre, will be seen by referring to the tabulatetl scheme, 

 pages 292, 293, 294. 



Since all received the same amount of manurial matter, any 

 dift'crences found in them will be due to the form in which it 

 was applied. In the following tables the odd numbers are 

 the undissolved phosphates, and the even numbers the same 

 -dissolved : — 



Haeelaw Eood Plots. 



