Crop scientist: Glyphosate safe, does not interrupt nutrient uptake in roots

In a response on GMO Answers, the industry created website that allows anyone to ask questions to scientists about GMOs, Marian Bleeke, a scientist with Monsanto, explains why glyphosate is safe. Bleeke specifically addresses concerns that the chemical affect snutrient uptake in roots of crops. Glyphosate, the active ingredient in Monsanto’s Roundup herbicide, binds to essential nutrients in the soil, Bleeke writes, but there is so little of it compared to the nutrients themselves that this process does not interrupt normal nutrient uptake by roots.

Metals such as iron and aluminum are in the range of 7,000 – 300,000 ppm or higher; others such as manganese (20 – 3,000 ppm) and zinc (10 – 300 ppm) are present in lower concentrations, but still significantly higher than glyphosate.  Because metal ion concentrations are so much higher than glyphosate, with much of it in insoluble soil particles, glyphosate binds tightly to soil and shows very little uptake into plants or movement through soil.

Read the full, original story here: “Question: I don’t understand how you can say GMO food is safe, when farmers are spraying glyphosate on their crops”

Related article:  IARC's reassessment of coffee illustrates problems with its process, messaging
Outbreak Daily Digest
Biotech Facts & Fallacies
GLP Podcasts
Infographic: Here’s where GM crops are grown around the world today

Infographic: Here’s where GM crops are grown around the world today

Do you know where biotech crops are grown in the world? This updated ISAAA infographics show where biotech crops were ...
News on human & agricultural genetics and biotechnology delivered to your inbox.
glp menu logo outlined

Newsletter Subscription

* indicates required
Email Lists
Send this to a friend