Tuesday, August 18, 2009

Irrigation Readings - Winter 2009

Some good news from Richard McGeachy - Viticultural consultant.

At the moment the soil moisture is looking substantially better than it was 12 months ago. This plot (below) is take from a moisture monitoring site just to the west of Willunga.

Click on the graph for a larger image.

Clearly soil is much wetter than last year. This is a result of higher than average July rainfall and therefore more moisture making it past 1.0 metre in the profile. This winter has push moisture much deeper into the subsoil than last year.

Thus far August has not offered too much rain to back up July and ideally close to average rainfall through Spring are needed to maintain the current moisture levels.

We’ll be keeping an eye on both the soil moisture and rainfall in the coming months and will make decisions well before flowering as to whether we apply any top up irrigation.

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