11. 



straw and leaves. 



Proa a Scandinavia® source th© results in Table VII 

 ar® taken (E.G.R. 15, 683) 



Table VII : Showing Effect of Wssda on Yield : 

 Results given in kilograms per Rreta*"'^, 



Part No Weeds With W©<idB Crop and Weeds Total 



Crop 



Hay 



Barley 



Potatoes Tubers 22101 11330 



The decrease in yield of crops is marked in every 

 case, a yield of 1740 pounds lowering the hay yield 3S90 

 pounds. 1735 pounds of weeds lowered th© yield of barley 

 grain 1413 pounds, and of barley straw 1338, making a total 

 of 2801. The percentage of injury to the grain was much 

 greater than to that of straw. The decrease in total 

 yield was also marked. This Is especially Interesting 

 since it is usually supposed that both hay and barley have 

 relatively large water requirements, as well as W6>eds. 



The foregoing data, while giving unmistakable indica- 

 tions, would have b€«©n more valuable, especially for the 

 purpose of a soil study, had dry matter been cteteraained. 



