Knee High by the 4th of July

Knee High by the 4th of July 

The old saying “Knee high by the 4th of July” signified to farmers how tall their corn should be by Independence Day, but with scientific advances in farming, is this old adage still true? 
With recent developments in farming and agricultural technology, farmers can expect their corn crops to be far taller than knee high. According to the Iowa Corn Growers Association, under good conditions, Iowa corn plants typically reach a height of eight feet by midsummer. That’s more than double what farmers could expect just thirty years ago. 
When planting used to begin late May, having a crop two feet tall by July would be a positive sign. Now, when planting begins in April and the crops have longer to grow “Knee High by the 4th of July” just isn't cutting it anymore. 
With the very wet spring, farmers had to begin late this year. The USDA reports that as of June 10th in central Iowa, there have only been 5.2 days of fieldwork possible. Corn is reported as 93% planted and is 3 weeks behind. Soybeans are 33% plants and are 2.5 weeks behind, again also in central Iowa. 
Will your crop by “knee high by the 4th of July” with this behind planting season? Or did your crop even surpass that? Let us know in the comments and tell us where you are located! 


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