22 



N. H. AGE. EXPERIMENT STATION. 



[BuUetin 190 



TABLE No. 7. 



Average Diameter Increase {1913-1918). 



Woodman Orchard. 



Inches. 



Growth of Cover Crops. 



It should be noted that in recent years the cover crops on the 

 fertihzed plots are very notably heavier in growth than on Plot 

 5 and also it should be noted that the cover crop on Plot 5 is 

 becoming poorer each year. Thus we conclude that the ever 

 increasing amount of green manure plowed into the ground is 

 affecting beneficially the growth of the trees in the fertilized plots 

 but no special data have been collected to show this matter, 

 although it is quite noticeable to one acquainted with the orchard. 

 This of course is complicated with the fertilizer treatments. On 

 the section of the orchard where lime is applied annually there 

 has been little evidence of its effect. In one year (1916) only 

 was the clover on this section distinguishable from the other 

 sections, but that year it was quite marked. 



DISCUSSION OF PLOTS SEPARATELY. 



Considerable that might be said in a separate discussion of 

 the plots has already been canvassed in the foregoing remarks, 

 however at the risk of repetition the behavior of the Individual 

 plots will be taken up briefly. 



