Obtaining timely crop and estimates using ground gathered and landsat data / 
by George Hunuschak ... [et al.] 
 - Washington, D.C. :  U.S. Government Printing Office,  1609 
 - Various pageings ;  26 cm. 
<br/><br/> Technical bulletin 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural productivity<br/>Cropping systems<br/>Crops--Growth<br/>Agricultural intens
<br/><br/><label>Dewey Class. No.: </label>338.10973