Drainage – this allows the water to be “free draining”, but with enough organic matter to be able to hold onto sufficient amounts to encourage turf growth.
Wetting agents – especially in a lot of our sandy soils, the addition of wetting agents, more so in granular form, allows the penetration and holding of water into the soil profile. This allows the roots of the turf to be able to draw from.
Organics – having even only a small percentage of organics allows the soil to retain moisture, nutrients and encourage initial root growth.
Biology stimulation – the quicker the biology happens in the soil, the healthier the turf will be.
Water – very important for early establishment. The healthier the soil, the less water will be needed in the longer term.
Nutrients – making sure the correct nutrients are applied for early establishment. If the pH and all nutrients are available before the turf is laid, then instant root growth will start and top growth will follow.