49 



EXPERIMENTAL ENQUIRIES UNDERTAKEN AT THE 

 REQUEST OF THE VARIOUS GOVERNMENT DEPARTMENTS 

 DURING THE WAR. 



Amontj the enquiries carried out at Rothamsted at the request 

 of the ^•arious Government Departments, have been the following : — 



I. Reclamation schemes^ 1914-15. 



Report on soils on Foulness Island. 



Report on the possibility of cultivating and utilising the pit 



mounds of the lilack Country. 

 Report on the reclamation of Pagham Harbour. 



2.. Fertiliser Problems, 1915-18. 



Fertilising value of Humogen. 



Report on fertilising value of different nitrogen compounds. 



The possibility of using nitre-cake in the manufacture of 



superphosphate. 

 P'ertilising value of sulphate of ammonia made by the use of 



nitre-cake. 

 P'crtilising value of basic slag made by different processes. 

 Possibility of using flue dusts as sources of potash. 

 Harmful constituents of flue dusts. 

 Fertilising value of residues containing potassium from cement 



works, wool scouring processes, l^racken ash and other 



sources. 

 Possibility of extracting potash from wool. 

 Methods of evaluating organic fertilisers. 

 P^ertilising values of different kinds of lime, limestone, lime 



residues ; effects of fineness of grinding, etc. 

 Possibility of utilising peat in the iiianufa("ture of ammonia. 



3. Utilisation of waste materials. 



Fertilising values of a large number of manufacturers' waste 

 products submitted from time to time by the Board of 

 Agriculture and the Food Production Department. 



FertiHsing value of City wastes and residues. 



Possibility of absorbing ammoniacal drainings, now run to 

 waste from farmyard manure, cow Inres, etc. 



Utilisation of munitions wastes for fertilising purposes. 



Possibility of utilising urine for fertilising purposes. 



4. lM)od Production Problems. 



Possibility or otherwise of rultixating the Royal Parks. 

 Causes of infertility of various important areas of land. 

 PossibiHty of utilising straw as manure. 

 Issue of Monthly Notes to farmers on Fertilisers in the Journal 

 of the Board of Agriculture. 



5. General Problems. 



Amount of dry matter and of nitrogen in potatoes grown under 



different conditions. 

 Report on suitability of certain soils for latrines. 

 Methods of conser\ing and utilising Army stable manure. 

 Report on the effects of superphosphate on the yields of 



crops. 



