G RAIN DRILL S . 



Grain drills are very effective where they can be used because they 

 distribute the seed evenly, provide proper covering, and sometimes help 

 tc relieve competition all in a single operation. An agitator in the 

 seed box will promote even feeding of grass seeds. Even then, it is 

 necessary for the operator to be alert to keep all spouts feeding 

 properly. Alternate feeds in the bottom of the box may be covered if 

 wider than ordinary spacing is desired, or if the drill cannot be shut 

 down to feed evenly at the desired low rate. 



The single disk drill usually cuts through trash or into hard ground 

 rather effectively, and is more widely suitable for range use than the 

 other types. On mellow soil care must be taken to see that it does not 

 plant too deeply. 



The double disk drill will, in many cases, serve just as well as the 

 single disk drill. It is sometimes rigged with depth regulators on the 

 disks and is then especially useful on loose seedbeds or where variable 

 firmness makes it desirable to keep considerable pressure on the disks. 

 It dees not ordinarily cut through trash as well as the single disk 

 drills, and is net suitable in brush. 



The deep furrow disk drill is more heavily constructed than the other 

 disk types, and can ba effectively used in light sagebrush or on burned 

 sagebrush and in other places a little too rugged for the other drills. 

 The furrows are effective in trapping water if kept on the contour, 

 but may increase erosion if run up and down the slopes. Core must be 

 taken to prevent toe deep covering of the seed because sluffing in of 

 the furrows often adds to the original cover. This drill is more 

 effective than the other disk drills in reducing competition, and will 

 cut through and stay clear of trash better. 



BROADCAST SEEDERS . 



Broadcast seeders are useful where drills cannot be used, and usually 

 give more even distribution of seed than can be obtained by hand broad- 

 casting. 



The cyclone or whirlwind seeder is a small, inexpensive, hand-operated 

 type well adapted for use on inaccessible steep rough areas. It can 

 be used by a man on foot, riding on equipment, or even on horseback. 



The endgate seeder is a larger type built to fit into the rear end of 

 a wagon box and is powered by a sprocket and chain from the wagon wheel • 

 Various adaptations have been made to operate seeders of this type from 

 trucks, tractors, disk plows, etc. 



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