- 261 - 



abundance of plants which in a pasture may be regarded as weeds. 

 On all the manured plots, on the other hand, there is an abundant 

 growth of rich grass. Where phosphates, or phosphates and potash 

 salts, have been continuously applied, without nitrogen, the growth 

 of plants of the clover kind is most conspicuous ; while on the 

 plots on which nitrate of soda has been continuously used without 

 phosphates or potash (a mode of manuring which on general prin- 

 ciples is not to be recommended), the grasses, as distinguished from 

 clovers, are most prominent. The best herbage, however, in which 

 clovers and grasses appear to flourish with equal vigour and lux- 

 uriance, is found on the plots on which both phosphates and ni- 

 trate are used every year. 



GRASS-LAND : FIVE AND THREE ACRES FIELD, AT KINETON. 



Manuring per Acre 



Annual Yield of Hay per Acre 



1908 



1909 



Eight years 

 Average 



Average 



gain 



due to 



Manuring 



Tons. Cwt. 



No Manure | o 10 '/ 2 



Tons. Cwt. (Tons. Cwt. Tons. Cwt. 



014 .010 V a i 



Superphosphate (3 cwt) . . . 



Superphosphate as above, with 

 Sulphate of potash (i) . . . 



Superphosphate as above, with 

 Nitrate of soda (2 cwt. in 1902, 

 1903, 1 904, and 1905; i Va cwt > 

 in 1906, 1907, 1908 and 1909). 



Superphosphate and Nitrate of 

 Soda as above, with Sulphate 

 of Potash (i) 



Nitrate of Soda without Phospha- 



tes or Potash 



i 8 '/, 



I 14 



*4 



15 V, 



16 



3 Va 



2 4 



'/a i i 



2 2 



10 



I II Va 



