Newell, L. C. <br/><br/>
Effects of Mowing Frequency on the Yield and Protein Content of Several Grasses Grown in Pure Stands 

 - Lincoln,   1947. 
 - 36 p. ;   18 cm. 
 - University of Nebraska Colege of agriculture. Agricultural Experiment station. Research Bulletin ;   150 .
<br/><br/> Donación