Clean Beans

In the late 1990s clean beans came to Iowa.

The beans had a resistance to a broad spectrum herbicide.

Farmers have used herbicides against the weeds for over half a century, but never with the complete success that the herbicide resistant beans had.  Prior to this, they had to use a narrow spectrum herbicide—one that would kill monocots but not dicots.  Or they would kill all the weeds prior to planting.  Or they would go through with a bar and a rope wick, saturated with roundup, which would kill all of the weeds that were taller than the soybeans.  Still, they had to mechanically cultivate or hire high school kids to walk the fields and pull out the weeds.

7-6-09006

With the new tools, there was a noticeable difference in the fields.  The areas between the rows were absolutely bare of live vegetation.  Even the non-farmers like me noticed the difference.

Advertisements

About the roused bear

Nature photographer from central Iowa.
This entry was posted in Uncategorized and tagged , , , . Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s