GRAZING AND FOEAGE PRODUCTION ON NATIONAL FOKESTS 



9 



20. In each series the second harvesting was made 20 days after 

 the first, the plants being allowed to grow uninterruptedly between 

 croppings. 



Table 3. — Relation of height growth of native forage plants to yield and 

 subsequent development 









■POl 10 











Un- -gjflta 







Treated plants 



treated -3 £ £ 











plants 



X ftft 



m © 

 2 "Ota 



- O :- 







u 



^ 



u 



^ 



u 



_^ 



u 



u 







® 



bo 



P. 



_bO 



ft 



faa 



ft 



© 



O © +f 





Name of plant 



fL 



'© 



£ 



1+3 



3 



1* 



^ 



s 





Remarks 





.2 9 



bS 



© a 



b3 



© p| 



a 



>>ft 



.5? a 



"3 a 



© 







ft 





,C c3 



-o ft 



rt ca 



© c3 



& ci 







<o u 



© 5r! 



©ft 



© m 



© ft 



"^ © 



^ft 



© ft 



©5* 







ca » 



§?§. 



c3 . 



S?S 



c3 



r-, ^ 





bo 



c3 



© c 







S-J 







(H 







a 









© 



© 



P 



© 



© 







© 



h - 







> 



> 



> 



> 



> 



o 



o 



> 



bo© 







< 



< 



< 



<1 



< 



e 



Eh 



< 











Ins. 



Gms. 



Ins. 



Gms. 



Ins. 



Gms. 



Ins. 



Ins. 



P.cf. 









Second 













First harvesting 



harvesting 



June 1 and 



June 



June 



June 20: 





June 1 



Jun 



e20 



Jun 



e20 



20 



20 





Series I: 























Letterman needle 



1.7 



1.82 



1.9 



1.49 



2.4 



3.31 



4.3 



7.1 



65.1 



No flower 



grass (Stipa letter- 





















stalks show- 



mani). 





















ing. 



Violet wheat grass 



2.3 



1.71 



1.9 



1.44 



2.3 



3.15 



4.2 



5.9 



40.5 



No flower 



(Agropyron viola- 





















stalks. 



ceum). 























Mountain brome 



2.7 



2.00 



2.3 



1.59 



2.6 



3.59 



4.9 



6.8 



38.8 



Do. 



(Bromus polyan- 























thus). 























Wild geranium (Ge- 



3.3 



2.00 



1.4 



1.99 



1.7 



3.99 



3.1 



4.6 



48.4 



No blossoms. 



ranium viscosissi- 























mum). 























Mountain dandelion 





.07 



1.6 



.86 



1.3 



.93 



2.9 



3.4 



17.2 



No flower 



(Agoseris pumila). 1 





















heads. 



Average 



2.5 



1.52 



1.8 



1.47 



2.1 



2.99 



3.9 



5.6 



43.6 











Sec 



ond 















First harvesting 



harvesting 



June 10 and 



June 



June 



June 30: 





; 



une 10 



June 30 



June 30 



30 



30 





Series II: 























Letterman needle 



1.8 



2.97 



4.1 



1.76 



2.6 



4.73 



6.7 



8.6 



28.4 



No flower 



grass. 





















stalks show- 

 ing. 

 No flower 



Violet wheat grass 



1.9 



2.09 



3.8 



1.97 



2.9 



4.06 



6.7 



8.2 



22.4 























stalks. 



Mountain brome 



2.5 



2.29 



4.2 



2.04 



3.2 



4.33 



7.4 



9.4 



27.0 



Do. 



Wild geranium 



3.4 



2.37 



3.8 



2.38 



2.2 



4.75 



6.0 



7.6 



26.7 



No blossoms. 



Mountain dandelion ! 





1.32 



2.7 



1.34 



2.0 



2.66 



4.7 



6.8 



44.7 



No flower 

 heads. 



Average 



2.4 



2.21 



3.7 



1.90 



2.6 



4.10 



6.3 



8.1 



28.6 











Sec 



ond 















First harvesting 



harvesting 



June 20 and 



July 



July 



July 10: 





June 20 



Jul 



7 10 



Jul 



7 10 



10 



10 





Series III: 























Letterman needle 



2.0 



4.52 



6.4 



3.51 



6.3 



8.03 



12.7 



12.7 



0.0 



10 per cent of 



grass. 





















plants show- 

 ing flower 

 stalks. 



Violet wheat grass 



2.4 



4.09 



7.0 



3.49 



6.3 



7.58 



13.3 



11.9 



-10.5 



No flower 

 stalks. 



Mountain brome 



2.8 



4.38 



6.6 



4.07 



7.6 



8.45 



14.2 



12.3 



-13.4 



10 per cent 

 s h owing 

 heads. 



Wild geranium 



3.0 



5.38 



6.9 



6.72 



5.8 



12.10 



12.7 



13.3 



4.7 



10 per cent in 

 blossom. 



Mountain dandelion 1 





2.06 



5.8 



2.86 



4.8 



4.92 



10.6 



9.2 



-13.2 



Do. 



Average 



~~~2.~6 



4.09 



6.5 



4.13 



6.2 



8.22 



12.7 



11.9 



-6.3 





1 Good strong, average plants. 



The results obtained are summarized in Table 3 and Figure 4. 

 The more important indications brought out are the weak growth 

 81467°— 26 2 



