Donohue, S. J. <br/><br/>
Sampling instructions and nutrent sufficiency ranges for plant tissue analysis 

 - Blackburg, Virginia :  Virginia Politechnic Institute. Department of Agronomy,  1979 
 - 4 p. 
<br/><br/><label>LCCN: </label>20940 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Citología e histología vegetales.<br/>Cultivo de tejidos.