EXPERIMEXTxVL STATIONS — REPORT FOR 1881. 



327 



The superphosphate plots at Pumpherston have shown results 

 in favour of the more highly dissolved superphosphates ; but 

 taking these in conjunction with the experience of former years, 

 we are not entitled to draw any very definite conclusions. In 

 such an experiment much must no doubt dej)end on the nature 

 of the phosphate from which the superphosphate is made, its 

 softness and friability, and the fineness of its state of division, 

 and it will take some time before we are able to speak with 

 certainty upon the results of these plots. 



n 2 



Acre Plots. 



The crop on these plots this year was barley. At Harelaw 

 the crop was sown again without a manure, but at Pumpherston 

 the manures were applied for the first time to a soil which had 

 been mixed and laid down so as produce a uniform piece of 

 ground for these small experiments. The plots are numbered 

 according to the numbers of the large plots of which they are 

 duplicates. Plots 11a and 12a are not duplicates of 11 and 12, but 

 are two additional phosphate plots, where Curagoa phosphate has 

 been applied in the undissolved and dissolved state respectively. 



