By Cynamn
new plymouth,
New Zealand 
i have a niagera grape vine that seems to be suffering from salt burn as i live next to the beach i was wondering if there is someway to counter this problem short of shifting inland
2 Jan, 2011
If your irrigation water is fairly salt-free, you can give it a very deep soaking--at least a meter deep into the soil, 8 cm deep on the surface in sandy soil, 24 cm in clay--several times a year. Organic matter also helps, including compost tea as a quick fix. Gypsum can help also in clay to loam soils, but may be a risk in alkaline sandy soils.
3 Jan, 2011