As a turf care contractor in Perth, we frequently encounter several challenges that hinder our ability to create a premium turf surface.
Common Issues
The predominant issue we face is related to reticulation. In Perth, we depend entirely on reticulation to fulfill our turf’s moisture requirements, as the region lacks sufficient rainfall for healthy grass growth. This challenge is
intensified by the fact that Perth is situated on a sandbelt, which is characterized by its inability to retain moisture and nutrients.
Turf growth issues generally manifest in three distinct ways:
- Insufficient Moisture: The turf is not receiving the necessary amount of moisture, which can vary based on factors such as grass type, season, usage intensity, and mowing height. Typically, this requirement ranges from 2 to 4 inches per week.
- Moisture not Reaching Roots: The turf may be receiving enough moisture, but it fails to reach the root zone or is not retained effectively. This often occurs due to hydrophobic soil. A common complaint we encounter is, “We are watering daily for a certain duration, yet the grass still has dry patches.” When soil becomes hydrophobic, it develops a waxy layer that prevents water from penetrating the top layer and reaching the roots. Unfortunately, once soil reaches this point, resolution generally requires chemical intervention.
- Localized Dry Spots: Even when the turf receives adequate moisture and the soil is not hydrophobic, localized dry spots may still appear. This usually happens when there is inadequate head-to-head coverage in reticulation. Head-to-head coverage means that the spray radius of one sprinkler adequately reaches the next. When this is lacking, specific adjustments to individual sprinklers or zone timings are necessary to meet moisture requirements.
Since moisture retention and absorption are crucial for producing premium turf in Perth, addressing these issues is essential. Additionally, the use of quality soil wetters forms the foundation of our turf care program.
Soil wetters can assist in enhancing moisture penetration, retention, or both. The choice of product and timing will depend on our objectives, budget, and specific challenges we face.
Nutrient Retention
The second significant challenge we encounter is the sand’s inability to retain nutrients. A common
misconception is that a school oval, entertainment venue, or similar space can thrive on just a few fertilizer applications each year. In simple terms, sand cannot hold onto nutrients. Even if a fertilizer claims to last 8 to 10 weeks, it will leach out of the sandy soil much quicker in Perth. Therefore, we should adopt a trickle-based approach, increasing the frequency of applications while reducing the amount used each time.
Soil Health
The third major issue is the lack of emphasis on soil health in ongoing maintenance programs. Soil health encompasses the physical, chemical, and biological properties of the soil and how they interact to create a conducive environment for plant growth, nutrient availability, water retention, and overall ecosystem health. These factors require attention, as many cultural practices in turf maintenance can inadvertently harm them. It is vital to have a strategic plan in place to promote soil health and minimize detrimental effects.
While these are the most prevalent issues we encounter, it’s essential not to overlook fundamental turf care principles, such as regular mowing, preventing soil compaction, and managing thatch.