50 WINDBREAKS. 



TABLE 9. Mean efficiency of windbreaks in area of greatest protection. 



Results of studies made in cooperation with the Nebraska Agricultural Experiment Station. 



/oo 



\ 





0/23456789/0 

 0/S7~/IA/C f/fOAf tr/W08/fAX /TXP/fASSED /A/ Tf/PJ/J Of rt&GM 7 



It* LEEWAffD 



DIAGRAM 21. Protective efficiency of dense osage orange hedge. For wind velocities of 5, 10, 

 and 20 miles per hour. Average height, 17 inches; 173 readings. 



