ON BOTANICAL COMPOSITION OF HERBAGE 



55 



The moist season of 1920 was more favourable to the growth of 

 clover, and during the latter part of May and the month of June 

 the plots were rapidly covered with a luxurious growth of red and 

 white clover. 



The botanical examination of the hay crop in 1920 is set out in 

 Table XXVIII and is illustrated in Fig. 9. 



TABLE XXVIII. BOTANICAL COMPOSITION OF THE HAY 

 BY WEIGHT AT LAMBOTJBNE END, 1920 



Sample taken: July 17th 



Practically all bird's foot trefoil, purple vetch and Vicia saliva. 



w 



U_l 



o 



FIG. 9. Botanical composition of the Hay, by weight, at Lambourne End. 

 Season, 1920. Soil London clay. 



1, Open hearth (fluorspar) basic slag. 2, Open hearth (high soluble) basic slag. 

 3. Untreated 4, Egyptian phosphate. 9, Cleveland phosphate. 



The results recorded in the above table simply afford another 

 illustration of the effect of the various phosphates in encouraging the 

 development of the clover plant. 



It would be difficult to secure poorer quality hay than that obtained 

 even on the slag plot in 1919. When conditions are favourable to the 

 development of clover as was the case in 1920, phosphates, in addi- 

 tion to an increased crop, produce a vastly better quality of hay. 



