Trial Using Gypsum (Verde-cal G from Aqua-Aid) to See If We Could Help With the Effects of Black Layer
We used the second green at Dunmurry Springs golf club in Kildare Ireland. Prior to starting to use verde-cal G we had been carrying out 2 hollow corings per year removing between 15% and 20% of the greens surface area in total. We applied 210 tonnes of topdressing to the greens per year also. This was to an area of 1.3 hectares. We took photos of the rootzone profile last February before we started on the program.
The photo above was taken on February 25th 2015 from our 2nd green.
We then hollow cored the green as normal in the spring time and filled the holes with a coarse sand. We then topdressed the greens throughout the season but only applied 90 tonnes. At the end of july we hollow cored again and filled the core holes with the same coarse sand as the spring time. We then applied one application of verde-cal G at 50 grams per meter sq to the second green on the second week of august. We repeated this application again in September, October and November. Each time we applied 50 grams per meter and applied it 4 weeks apart. We then looked at the green profile again and took pictures.
This picture was taken on December 4th 2015 and is from the 2nd green once again:
Submitted by: Gerard McEvoy Bsc, Golf Course Superintendent
Dunmurry Springs Golf Club, Kildare, Ireland
Popular News & Research
- 14 Oct 2016AQUA-AID’s OARS and Verde-Cal G bring uniform success to Bunclody Golf and Fishing ClubThe use both OARS PS and HS with Verde-Cal G has led to the removal of black layer and localised dry patch at Bunclody Golf and Fishing Club, enhancing the depth of the roots and strength of turf....
- 01 May 2010Battling BicarbonatesBicarbonate levels are often overlooked in irrigation water analysis. You don't need a Ph.D. in pH levels to manage bicarbonates, but understanding a little about water chemistry helps. The most important thing when dealing with water issues is that the soil takes on the characteristics of the water...
- 05 Jun 2010Sodium and SalinitySodium (Na+) as an individual element is commonly found in irrigation water, along with many others (like calcium, magnesium, potassium, sulfur and iron, etc). Salts are actually the dry form of two or more elements combined. When salts come in contact with water, they dissolve into their component...