14 



Table 4. Forage and protein yields of sod and conventional seedings, 

 with and without pronamide, compared to unseeded controls. 

 Means are averaged over four fertility levels and four 

 replications. 



Seeding 

 method 



1977 Yield 



1978 Yield 



Seeding Pronamide 

 date rate Forage Protein Forage Protein 



Unseeded control 



Sod seeding August 



Sod seeding May 



Conventional May 



lbs/Acre 

 

 3.0 





 3.0 





 3.0 





 3.0 



2.22 

 1.82 



3.39 

 3.37 



1.89 

 1.96 



1.81 

 1.73 



Tons/Acre ------ 



0.30 2.28 0.26 

 0.31 2.16 0.26 



0.30 

 0.26 



0.30 

 0.32 



0.27 

 0.24 



LSD .05 



0.76 



0.22 0.70 



0.13 



or protein yield. Forage yields of May seedings were slightly lower than 

 unseeded controls, since considerable yield was sacrificed by suppressing the 

 sod in the spring prior to seeding or, in the case of conventional seeding, 

 having killed the sod. 



Protein percentage of harvested forage (data not shown) , improved with 

 the use of pronamide, as expected from the increase in legume composition 

 of the sward. Pronamide application did not increase forage yields, indicating 

 that clover merely replaced the grass which pronamide eliminated. 



