Tilling, or plowing, a field prepares the soil for planting and destroys weeds, but a Roundup-ready crop doesn't require extensive tillage.

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Its Roundup Ready variety is used to grow about 90 percent of the nation's crop for the estimated 275, 000 American soybean farmers like Bowman, according to its petition.

CNN: Monsanto court victory could have big impact on biotech

Monsanto, according to its petition, dominates the soybean seed market and its "Roundup Ready" variety is used to grow about 90 percent of the nation's crop for the estimated 275, 000 American soybean farmers like Bowman.

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