58 



EFFECT OF PHOSPHATES 



Wendens, Saffron Walden. The botanical composition of the 

 grass at Wendens, Saffron Walden (chalk) is shown in Table XXX. 

 The quality of the meadow is obviously much superior to that at 

 any of the other centres, and it is therefore not surprising to find 

 that the various phosphates have had a comparatively small effect 

 on the quality of the herbage. 



TABLE XXXI. BOTANICAL ANALYSIS OF THE HAY CROP 

 BY WEIGHT AT HORNDON. 



Soil: London clay. Sample taken: Aug. 16th, 1920 

 Manures sown: Feb. 27, 1918. Plots B, C, D and H: Feb. 3rd, 1919 



Horndon (London clay). These plots were grazed during 1919, 

 and samples of hay for botanical analysis were not removed until 

 the 1920 crop was cut on August 16th. The results which are set out 

 in Table XXXI, and illustrated in Fig. 11, show an extraordinary 

 contrast between the treated and untreated plots. In view of the 

 effect of grazing during 1919 on the growth of the herbage on the 

 plots receiving phosphates (see Table XV and Plates VI and VII), 

 it is, however, not surprising to find that clover was the dominant 

 constituent of the hay crop in 1920. 



