This disorder has a severe impact in certain viticulture regions in New Zealand. Environmental conditions are difficult to have control over, water and draught stress may be controlled via irrigation and it has long been the belief of some consultants that proper Balanced Nutrition plays an important role in alleviating the disorder. Roots Shoots & Fruits Ltd. in conjunction with a leading corporate studied the impact of balanced nutrition on a block of BSN affected grapes in the Hawkes Bay Region over two seasons.
The first season looked at whether a foliar Potassium fertilizer K-Forte (0-5-20) had any detrimental effect on BSN and the second year looked at a nutritional balanced fertilizer program on the affects of BSN. The results for these two trials are documented below.
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