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Showing posts from March, 2018

Shoot Growth Post Harvest - Is this a problem?

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The importance of the post-harvest period is largely determined by climate, variety, yield, and management prior to harvest. Vines will tolerate a season or two with limited post-harvest irrigation, but productivity will eventually be reduced if this continues over many seasons. In the same vain they are thought to tolerate excessive irrigation and fertiliser for one or two seasons before  the vine becomes unbalanced. 
Clearly in the picture below the rate of fertiliser and irrigation has been too high and the vines have re-shot.

For conventional vineyards DJ's also recommend using 'soft' fertiliser products instead of Urea which is straight Nitrogen. DJ's use techgrade MAP, NutriPHlow or a specialist fertiliser like KRISTALON which contain a combination of Nitrogen, Phosphorous and Potassium.
We recommend this because:
Like carbohydrates, grapevines require a supply of nutrients from stored reserves to support growth in early spring. Nitrogen in the roots and woo…