Building off of our traditional success in tobacco and our more recent watermelon results in 2020-2021, we wanted to trial our low rate system in another crop that fit the specifications outlined earlier; 60-120 day crop, high value, not currently being fumigated as a standard practice. An opportunity was found in Florida with fresh market green beans. After reviewing the economics of green bean production in this region and considering the chloropicrin rate ranges we had seen increased vigor/yields in other crops, the following protocol was set for the trial:

- Evaluate 85# broadcast (25# BER) and 130# broadcast (40# BER) on fresh market green bean.

- Fumigation was applied bare-ground with a single application shank at a 6” depth while stacking a 12” bed at application. The grower followed this by double bedding immediately following the fumigation pass to increase stack from 12” to 15-18”, resulting in a final application depth of 21-24”. At planting, the bed is knocked down to an 8-10” pressed bed that’s prepared for direct seeding. This results in seed being planted directly into the fumigated zone.

The results of this study were very successful. The crop vigor and uniformity were significantly better in fumigated treatments and had a direct correlation to rate. Both rates resulted in better seed germination, larger root systems, uniform plant populations and enhanced growth versus non-fumigated. Yield results were the following:

Keep reading at https://triestag.com/2023/02/13/green-beans-low-rate-fumigation-trial/

To learn more about what soil fumigation can do in your fields contact us at 08 8347 3838 or info@trical.com.au