  | 
          
            This is a file from the  Wikimedia Commons. Information from its  description page there is shown below.  Commons is a freely licensed media file repository.  You can help. 
           | 
         
        
        
       
        
         
          
           | Description | 
           
             English: From space this 1,200 hundred-plus acres farm in north-west  Minnesota looks like a patchwork quilt. Fields change hue with the season and with the alternating plots of organic  wheat,  soybeans,  corn,  alfalfa,  flax, or  hay. Made with  infra-red light, this false colour image provides a wealth of information about crop conditions. To the untrained eye, this false-colour image appears a hodge-podge of colours without any apparent purpose. But farmers are now trained to see yellows where crops are infested, shades of red indicating crop health, black where  flooding occurs, and brown where unwanted  pesticides land on chemical-free crops. 
            | 
          
          
           | Date | 
           18 September 2009 | 
          
          
           | Source | 
            NASA Earth Observatory (Image created using Landsat data provided by the United States Geological Survey. Instrument: Landsat 5 - TM.) | 
          
          
           | Author | 
           NASA Earth Observatory, Jesse Allen | 
          
          
           Permission ( Reusing this file) | 
           
            
             
              
               | Public domainPublic domainfalsefalse | 
               
              
             
              
                 | 
               This file is in the  public domain because it was solely created by  NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See  Template:PD-USGov,  NASA copyright policy page or  JPL Image Use Policy.) | 
               
                
                | 
               
              
             
              
               | 
                
                | 
               Warnings:
                 - Use of  NASA logos, insignia and emblems are restricted per US law  14 CFR 1221.
 
                 - The NASA website hosts a large number of images from the  Soviet/ Russian space agency, and other non-American space agencies. These are not necessarily in the public domain.
 
                 - Materials based on  Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the  STScI.  See also {{ PD-Hubble}} and {{ Cc-Hubble}}.
 
                 - The  SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use.  
 
                 - Images featured on the  Astronomy Picture of the Day (APOD) web site may be copyrighted.  
 
                 
                | 
               
              
             
            | 
          
         
         
        
        
        
       File usage
       
        The following pages on Schools Wikipedia link to this image (list may be incomplete):
        
        
       
       This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file.
        
       
      All five editions of Schools Wikipedia were compiled by SOS Children. Thanks to SOS Children, 62,000 children are enjoying a happy childhood, with a healthy, prosperous future ahead of them. Would you like to sponsor a child?