Thought I would throw this out and see if anyone has comments:

Question: I've heard you mention the use of vinegar to help keep plants shorter. At what rates do you apply it and at what stage? Does it work consistently? Very interesting concept.

Kip: We normally apply about 8 ounces of vinegar per acre through our pivot irrigation system several times per season. We think this helps keep soybean stem internode growth in check but we have not done any side X side checks to test this theory out. We think the mild acidity or some other property "shocks" the plant. Excessive vine growth was a major challenge this year, so we may need to rethink our vinegar strategy in terms of rate, number of applications or even using other growth inhibiting products.