NATIONAL FOREST MANUAL GRAZING. 87 



Choice of Areas. 



In reseeding with forage species which make a quick height growth 

 or a heavy sod, care should be taken to insure against competition 

 with the reproduction of tree species, where forest reproduction is 

 possible. Therefore in such cases a species like orchard grass, which 

 forms tussocks, may be used. Such grasses leave a portion of the 

 soil exposed where the tree seed may start. 



The areas selected for seeding experiments need not be large. For 

 a single species an acre, or even half an acre, is ample. It is essen- 

 tial, however, that the area selected should be representative of the 

 general conditions on the range in need of reseeding. In order to 

 obtain reliable results, experiments will necessarily extend over a 

 period of years. To insure a fair test the experimental plot, or at 

 least a portion of it, should be fenced. A detailed record of the 

 work should be kept by the officer responsible for the experiment 

 and progress reports submitted at the close of each growing season. 

 The accompanying Blank A will be filled out when the experiment is 

 started, and Blank B used for progress reports. 



