Seaweed extracts have been found to improve the quality of fine turf by increasing turf density, colour, and uniformity. Seaweed extracts contain betaines, which are natural osmoprotectants that help grass plants retain water and maintain turgor pressure, so should be a key component in the management and recovery of LDP affected turf. It's continued use results in a green that becomes increasingly resistant to wear and tear.
At its most basic, the answer is that excessive use of sand on bowling greens causes the under lying soil to become inert; lacking life or the complex web of interactions that go to make healthy, high performance turf. The natural balance of the soil/turf ecosystem is upset and the green will never be capable of consistent high performance for as long as the folly of top dressing is allowed to continue.
Understanding these microhabitats and their roles can help us manage our turf more effectively. By fostering beneficial microbial communities in these areas, we can enhance plant health, improve resistance to stresses, and ultimately, maintain healthier turf.
We are familiar with the concept of our grass plants being composed mostly of water (75-85%), but what else is in a grass plant? The answer is that the dry matter of the plant is made up of a mix of 16 elements, commonly referred to as the essential nutrients. We describe them as essential because the plant can't exist or complete its life cycle if any of these nutrients are lacking to any great degree.
The re-wetting effect will last as long as sufficient wetting agent remains bonded to the sand particles, but water repellency and the associated dry patches will return when this is no longer the case. That is why it is important to work on the soil eco-system as a whole to effect a cure for the underlying issues of imbalance brought about by excess sand and the routine use of inorganic fertilisers and fungicides over decades.
