QUALITY or WHEAT dJOPS 



65 



in which Mr E. Ilewlins of St Ives has iiuide vahiations of the 

 grain from each of the plots. These valuations and figures 

 respecting quality are to a certain extent disturbed by factors 



Table XIX, 



iriicat, Broadhalk Field. Averayr.t over 14 years 

 (1889-1902). 



and h, 1894 and since. 



Average for 7 years (1803, '94, '90, '97, '98, 1900, 



arising only at secondTiand out of the manuring. For 

 example, Plots 8 and 2 are very liable to l)e lodged and 

 to show a much higher proportion of sprouted corn in 

 a wet harvest like that of 1902. These effects may easily 

 overpower the differences directly due to the manuring and 

 visible in normal seasons. The farmyard manure plot, No. 2, 

 has given on the average the best grain, .showing the highest 

 weight per Inishel and the highest price in the valuation, 

 but there are several years in which the corn from this 

 plot occupied a very low place in the series. IMot lo, a^ain, 

 receiving ammonium-salts only, shows ahnost the lowest 

 weight per bushel and the lowest price. In some years, 

 however, the highest valuation has been put on the corn from 

 this plot. It is important to notice that tlie continuously 

 unmanured plot, with its small yield, yet produces grains of 

 corn which are almost up to the average in size, weight per 



