1922.1 PUBLIC DOCUMENT — No. 31. 9a 



REPORT ON PROJECTS. 

 Plant Nutrition. 



Chemical Investigations. 

 Department of Plant and Animal Chemistry. 



Project G. "Lime absorption and acidity of Field A." 



Professor MoRsE and Assistant Professor JoNEs. 



This study of the application of fundamental laws affecting 

 solubility in the soil solution has led to important results which 

 are now being prepared for publication. Following this it is 

 expected that a chemical study will be made of the reaction 

 between nitrate of soda, muriate of potash and lime as mani- 

 fested by the composition of the drainage water. 



Project 7. "Effect of sulfate and muriate of potash on the 

 soils of Fields A and B." 



Professor MoRSE and Assistant Professor Jones. 



Work on this project is being carried on in connection with 

 that of the one immediately preceding. 



Project 14. "A study of the availability of soil potash, with 

 the object of developing a system of diagnosis for soils of the 

 State." 



Professor Morse and Assistant Professor Jones. 



This work supplements that carried on some }'ears back by 

 former Director Brooks in the investigation of subsoil potash, 

 and during this past year was confined to an attempt at 

 measuring the effect of moisture on the availability of soil 

 potash. 



Microbiological Investigations. 

 Department of Microbiology. 



Project 2. "Soil fertility as influenced by micro-organisms 

 in their relation to the presence and disappearance of organic 

 matter." 



Assistant Professor Itano and Mr. Sanborn. 



Particular attention has been given to the activities of 

 Azotobacter and Bacillus radicicola in their relation to those 



