297 



THE WOBURN EXPERIMENTAL 



STATION OF THE ROYAL AGRICULTURAL 



SOCIETY OF ENGLAND. 



FIELD EXPERIMENTS, 1912. page 



CONTINUOUS WHKAT ..... . . 298 



CONTINUOUS BARLEY .... ... 302 



ROTATION EXPERIMENTS THE UNEXHAUSTED MANURIAL 



VALUE OF CAKE AND CORN 303 



GREEN-MANURING EXPERIMENTS 304 



VARIETIES OF BARLEY ........ 306 



VARIETIES OF WHEAT 308 



VARIETIES OF LUCERNE ....... 310 



VARIETIES OF RYE-GRASS . . . . . . .311 



SOYA BEAN . . . . . . . . . .311 



LINSEED .311 



INOCULATION OF LEGUMINOUS CROPS 312 



SUGAR-BEET . . . . . . . . . . 312 



RAINFALL AT WOBURN, 1912 314 



POT-CULTURE EXPERIMENTS. 1910, 1911, 1912 . . 314 



I. Hills' Experiments : — 



(a) The influence of Lithium Salts on Wheat . . . 314 



(i) TJie influence of Zinc Salts 0)1 Wheat . . .321 



(c) The influence of Lead Salts on Wheat . . . 324 



II. The Relation of Lime to Magnesia in Soils : — 325 



FIELD EXPERIMENTS, 1912. 



If the season 1911 was rightly described, in my last annual 

 Report, as one of vei'y exceptional natui*e, the ^-ame may with 

 equal truth be said of that of 1912. In place, however, of a 

 prolonged drought, as in 1911, the season was characterised by 

 continuous rain through summer and early autumn, and almost 

 entire al)sence of sun and warmth. As a consequence, grain 

 crops were long in coming to maturity, and, when harvest 

 approached, in some parts of the country — and notably the 

 Midlands (in which the Woburn farm is situated) — rain was 

 so continuous as to make the in-gathering of the corn crops a 

 matter of great difficulty and anxiety. As a single instance, by 

 way of proof, it may be pointed out that out of the thirty-one 

 days of August there were no less than twenty-six on which 

 rain fell at the Wol)urn farm. It is unnecessary — for it is too 

 well known — to refer to the great losses which farmers in the 

 Midland counties, in particular, suffered, and we suffered in 

 common with them. For the first time, I think, in the history 

 of the farm, the experimental wheat and barley crops had to 



