EXPERIMENTS IN SCOTLAND 91 



produce of plot 17 from that obtained on plot 14, in order to 

 obtain the return from the sulphate of ammonia, without 

 incurring any serious error. The result is that the return has 

 been at the rate of -j\ cwts. of hay for i cvvt. of sulphate of 

 ammonia applied. The return would doubtless have been 

 better in better seasons. 



In the report in the Highland Transactions, 1894, 3^5> *he 

 changes in the character of the herbage, produced by the use 

 of various manures, are described in detail. In Transactions 

 1895, 423, are observations on the grazing of the manured land 

 by cows and horses. The stock apparently were most eager 

 to consume the herbage richest in clover. 



4. Experiments on temporary Grass and Clover. 



The effect of ammoniacal manures on the mixed rye-grass 

 and clover, sown in the course of an ordinary Scotch rotation, 

 has been made the subject of experiment by Professor Wright. 

 The trials were made in 1897 on five farms in Dumbartonshire. 

 The manures used were basic slag 4 cwts. ; superphosphate 

 416 Ibs. ; muriate of potash 2 cwts.; sulphate of ammonia 

 88 Ibs. ; farmyard manure 10 tons. The average weights of 

 hay obtained at the first cutting were as follows : 



TABLE XXVIII. 



PRODUCE OF RYE GRASS AND CLOVER BY VARIOUS MANURES 

 ON FIVE FARMS IN DUMBARTONSHIRE, 1897. 



Manures applied. 



Hay 



per acre, 

 First Crop. 



No manure 



Basic Slag and Potash salt 



Basic Slag, Potash, Sulphate of Ammonia, 88 Ibs. ... 



Superphosphate, Potash, Sulphate of Ammonia, 88 Ibs. 



iperphosphate, 

 ilphate of Ami 



Sulphate of Ammonia, 88 Ibs 

 Farmyard manure, 10 tons 



267 

 332 

 38-0 



397 

 362 



357 



The return here from the manure applied is very good, and 

 one that will encourage many farmers to apply manure to their 

 seeds. The mixture of basic slag and potash salt produced a 

 wonderful growth of clover, especially in the aftermath. The 



