zinnia, dahlia-flowered. One row of each of the crops was grown in each 

 plot, running lengthwise of the plots, to facilitate cultivation. 



Prior to planting and to bark or manure application, the entire area was 

 plowed eight inches deep and harrowed thoroughly with a disk harrow. 

 The old bark and manure were then mixed into the soil with a Gravely 

 rotary plow. The new barks were left on the surface as a mulch. The de- 

 tails of planting and of fertilizer application will not be given here other 

 than to state that what was considered to be ample fertilizer was applied. 

 This was partly applied by machine placement at planting time and partly 

 as side dressing later on. Each plot received the same amount of fertilizer, 

 but considerably less fertilizer was applied to the rows of flower crops than 

 to the vegetables. 



In the fall of 1951, after the first crop was harvested, the new bark treat- 

 ments were plowed under. 



Cultivation during the growth of the crops was by hand hoeing, two men 

 working almost continuously. 



There was some deer damage to the bean and squash plants during 

 growth, but an effort was made in presenting the harvest data to take that 

 into account. The summer of 1952 was very dry, so that some of the later 

 fertilizer applications were without effect. 



Table 11. Yields of Crops Grown in Field Plots with Bark 



13 



