$Mm% 



Figure 2. — Binding and shocking is the best way to harvest seed. 



Trials on irrigated land in Idaho show that applications of 55 pounds of 

 nitrogen per acre on mountain brome produced an increase of 3 pounds of 

 seed for every pound of nitrogen applied. Other grasses should respond 

 in about the same ratio. A trial conducted with tall oatgrass. smooth 

 brome. and orchardgrass grown in rows spaced 3 feet apart showed that 60 

 pounds of nitrogen produced an average seed-yield increase of 55 percent 

 over the unfertilized stands. At the same time. 60 pounds of nitrogen 

 per acre applied on solid seedings produced a 79-percent increase over the 

 unfertilized stand. You may expect to get results similar to or exceeding 

 these. 



No increase in seed yield of grasses has been produced by the use of 

 fertilizers other than nitrogen. This may not be true for your farm. It 

 may pay you to try other fertilizers on a few rows in your field and carefully 

 check the results. 



The time that you apply your fertilizer is important. Put on fertilizer 

 very early in the spring before the grass has started growth. If you live 

 in an area where weather conditions do not permit early field work, put the 

 fertilizer on in the late fall after the grass is dormant. 



IRRIGATION 



New Seedings 



During establishment of your grass stand make frequent and light irriga- 

 tions. Don't let the soil dry out below the roots of the new seedings. 

 During periods of high evaporation you may have to irrigate at intervals 

 of 3 or 4 days until the grass is about 4 inches high. After this stage use a 

 longer interval. To get efficient use of your irrigation water on light soils 



