Golf Course Management

JUN 2018

Golf Course Management magazine is dedicated to advancing the golf course superintendent profession and helping GCSAA members achieve career success.

Issue link: http://gcmdigital.gcsaa.org/i/986198

Contents of this Issue

Navigation

Page 72 of 105

06.18 GOLF COURSE MANAGEMENT 65 • Root-zone mix blending. ere is an ex- panded discussion on the do's and don'ts of mixing root-zone components. Utilizing specialized equipment made for produc - ing consistent root-zone mixtures is rec- ommended, while tactics such as loader- bucket flipping, farm implement mixing or rototilling in the putting green cavity are strongly discouraged. Step 6. Root-zone placement Step 6, which discusses placing, smooth - ing and firming the root-zone mixture under- went minimal changes. • ere is expanded discussion on using ap - propriate equipment to spread the root-zone across the gravel and avoiding trucks that may compromise the construction. • In some instances, the putting green root- zone has settled, especially near the perim - eter. erefore, a discussion was added to stress the importance of moistening the root-zone mixture during the spreading process and power tamping along perim - eter and where grade stakes were located to firm these areas. Finally, this section recom - mends heavy watering from irrigation after grade is reached in order to settle the root- zone. After irrigation, the depth should be checked and root-zone material should be added or removed where necessary. Step 7. Pre-plant preparation and establishment e 2004 version of the recommendations covered sterilization, and the updated version expands the discussion to fertility inputs and incorporating fertilizer, fumigation, and tips for sodding. • Pre-plant fertilizer. Because nutrient reten - tion will be low in the new root-zone mix- ture, courses are encouraged to submit sam- ples for nutrient testing. Mix the pre-plant fertilizer as uniformly as possible into the top 2 inches before smoothing. • Fumigation. Fumigation is suggested in areas with known severe nematode infes - tations and with documented severe weed problems. • Sodding. It is recommended to grow sod on the same root zone or on a root zone with characteristics very similar to those of the construction mixture. Under no circum - stances should a sod grown on soil contain- ing fine material such as silt and clay be placed over a sand root-zone mixture. Step 8. Grow-in • Superintendents recognize that grow-in methods and strategies can vary widely from one course to another, and even at the same property depending on the weather conditions at the time of grow-in. at's not to mention the different grasses and culti - vars, golfer expectations, and widely vary- ing budget and golf course superintendent experience. erefore, it is not practical to Gravels and root-zone mixtures should be tested by an A2LA-accredited laboratory to determine which gravels will bridge with a selected root-zone mixture.

Articles in this issue

Archives of this issue

view archives of Golf Course Management - JUN 2018