12a EXPERIMENT STATION. [Jan. 



Project 3. "llesidual value of excess phosphate applica- 

 tions." 



Assistant Professor Gaskill. 



In this project attempt is being made to utilize reserves of 

 phosphoric acid built up in the soil from past fertilizer treat- 

 ment. One of the older station plots, having an unbroken 

 history of twenty-five years, is now being used for this work. 

 The experiment as changed is now in its second year, and 

 hence has not given definite results. 



Project 4. "Methods of applying lime, and quantity of 

 application." 



Assistant Professor Gaskill. 



In preparing land for future alfalfa crops, lime has been 

 applied in varying rates, plowed under, harrowed into the 

 surface, and both plowed under and harrowed in. The plots 

 are repeated in quintuplicate. 



Project 6. "Top-dressing permanent grasslands." 



Assistant Professor Gaskill. 



Certain areas of land formerly used for experimental work, 

 but which were in old sod at the beginning of the experiment, 

 are being used in this test. The fertilizer applications are 

 purposely kept at a low rate. The results of the first year, as 

 might have been expected, emphasize the great importance of 

 nitrogen iii producing heavy yields of grasses. 



Project 7. "An attempt to restore productive fertility to 

 worn-out and maltreated soils." 



Assistant Professor Gaskill. 



This project was initiated in the spring of 1921. The plots 

 of the old South Soil Test, which had received difterential 

 fertility treatment for over thirty years, and in some cases 

 reached a very low state of productiveness, furnish the basis 

 for the study. The results the first year indicate an astonish- 

 ingly rapid and marked response to present rational treatments. 



