When it comes to managing water on golf courses, soil surfactants (wetting agents) are used for critical roles including reducing localised dry spot, improving moisture uniformity and enhancing water infiltration and retention in the rootzone. However, as the number of available products has grown, so has the confusion around them. Active ingredients can be difficult to discern, while marketing claims such as the ability to move water, remove hydrophobic coatings from soil particles and provide efficacy over extended periods are all common. Where do these claims come from and what is the scientific basis? This class is intended to move beyond the marketing and understand the data.
Learning outcomes:
- Understand the chemistry of soil surfactants and how structural changes relate to functional differences
- Clarify marketing terminology such as ‘penetrant’ and ‘retainer’
- How adjusting application rates and timings can alter efficacy and longevity
- The role weather and cultural management play in performance
- Make informed decisions with regards to purchasing, application and evaluation
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