Expected weather for this month:

An unsettleld start to the month, but average temperatures throughout of 20°C

Key Tasks for June

Irrigation. It is essential to have water available for irrigation purposes. Irrigation is required for court preparation and repairs. Ensure that the water gets down into the rootzone, a minimum of 150mm, to encourage deep rooting. Check with a probe. Evapotranspiration rates should begin to rise in the coming month. Irrigate uniformly and ensure the right amount is applied. Watering in high, daytime temperatures will be less effective and could encourage shallow rooting as the water fails to get deep enough to stimulate the plant roots. 

Rolling will still be a key maintenance regime in June, using a 1-1.5 tonne roller to periodically roll the courts, both down and across the line of play when conditions allow. Try to achieve between 6-10 hours of rolling in any one given week prior to matches.

The rolling, and the fact that soil profiles are now drying out, will produce firmer, faster courts. This month sees the continuation of regular maintenance tasks; grass cutting, grooming, brushing, aerating, feeding and watering. Other regular tasks include:

  • Ideally, you should be brushing on a daily basis to remove early morning dew.
  • It is essential to have water available for irrigation purposes.
  • Keep an eye open for any fungal disease attack, and use approved fungicides to treat the infected areas.
  • You may need to stop verticutting operations if the courts become too dry.

Mowing regimes will be dictated by the amount of play, the weather and what tournaments you may have. As a general rule of thumb, most courts should be cut a minimum of three times a week at a height of around 7-8mm, however some clubs do like to mow daily to maintain presentation and improve the quality of the sward.

Marking is important. Lines need to be clean, straight and accurate; ensure your marking machine is cleaned and serviced, checking that all the components are working properly. There is northing worse than using a marker that drips and produces poor line quality. It will reflect on your workmanship. Remember to use string lines for accuracy. Also invest in a good quality paint products, there are plenty to choose from that will suit your requirements and budget.

Other Tasks:

  • Ensure drainage outfalls, channels and ditches are clear
  • Inspect stored posts, nets, seating and notice/score boards
  • Inspect and remove debris from playing surface
  • Regular sweeping and brushing
  • Repair any hollows or damaged areas
  • Repaint lines

General Nutrition

Consistently warm soil temperatures in June create ideal conditions for fertilisers with an organic component, whether that be straight organic fertilisers or organo-mineral. Organic sources of nutrition help to support the soil food web and manage the soil-plant system in a holistic fashion. Spring inputs of nitrogen aiming to get things going can be reduced and grass growth will naturally start to drop back as temperatures rise. In the wild, the plant would have now gone through its leafy growth spurt and be diverting energy into setting flower.

Calcium is a key driver of growth for roots and shoots, as it is responsible for the construction of cell walls. Calcium can become limited in dry soil, so ensuring soil levels are adequate and supplementing with foliar calcium helps it to maintain good health. Calcium, along with potassium, are essential for regulating stomatal function, helping the plant to better react to the onset of heat and water stress. Cold pressed liquid seaweeds contain plant hormones which also help to regulate against water stress and are a significant resource to be employed. Seaweed also contains hormones which promote germination and establishment.

Any areas which have been seeded in May will benefit greatly from the addition of seaweed. Carbon sugar sources and liquid humates will also drive establishment, promote soil biology and maximise the uptake efficiency of nutrition.

Water management

The use of wetting agents as part of a managed plan will pay dividends during June if hot weather occurs. Ideally, these should have started with the application of a block co-polymer in March at the latest, to give the soil a chance for the chemistry to accumulate in the soil. 

Penetrant wetting agents will help applied irrigation and rainfall to enter the profile from the surface down.

Regular sarrel tine aeration is a key cultural means of maintaining soil moisture levels as the shallow but tightly spaced tines puncture a large percentage of the surface area, allowing gas to escape from the soil and better aiding the percolation of water from the surface.

Growth regulators applied during periods of good growth in anticipation of hot dry weather to come will help the plant to conserve energy and manage water stress, again mitigating drought pressure. 

With respect to irrigation, a thorough soaking just before dusk gives the soil the maximum time to expel heat over night. Applying water at the end of a hot day creates a nice thermal blanket, trapping heat in the soil.

Little and often watering is appropriate for germinating seed and very young plants, but it is advantageous to thoroughly wet the profile and then let the soil dry down to just above wilting point if you can. This encourages the roots to penetrate and allows carbon dioxide to leave the soil and life-giving oxygen to enter.

Little and often watering also maintains surface humidity and will encourage algae, mould and fungi such a botrytis and Rhizoctonia spp. to attack swards.

You should have had your mower serviced and sharpened ready for the new season.

  • Inspect machinery and equipment
  • Clean after use
  • Remember to check air filters
  • Inspect and reset mowing blades on cylinder mowers to ensure they remain sharp

Grounds Training was established in 2006 to provide a complete and unique service delivery training courses for the sports turf industry. We are now the go-to provider for on-site, bespoke training for groups. Alongside our renowned turf maintenance which now includes Lantra accredited Online courses. Grounds Training also works with the industry’s awarding bodies – Lantra and City & Guilds (NPTC).

Open courses for individuals to join are also offered at our Allscott (Telford) Training Centre, Most courses lead to Lantra Awards or NPTC qualifications; a small number of niche courses where the instructor is an experienced groundsman who is also Lantra Awards or NPTC registered, offer Pitchcare certification.

Whether your staff are involved with preparing and maintaining sports turf, operating ground care machinery and equipment or require a safe use of pesticides qualification, we have the course to suit them.

For more information on our online courses click here 

The Course Manual at just £30 is available for purchase separately.

Here are our upcoming open courses:

PA1/ PA6A- Thursday 6th/ Friday 7th June, Allscott Telford TF6 5DY

For more information visit: Groundstraining.com or email info@groundstraining.com

Current discussion issues:

Drainage

Dry patch