Originally posted by Mcintosh85
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Originally posted by Jungle Jane
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An easy test is just to judge it based on how much the tree grew the previous year. If the tree put on plenty of strong new growth (like those plums have), it does not need feeding, and indeed giving it further nutrients is likely to be detrimental to fruiting, as it will encourage vegetative growth at the cost of fruit.
If, on the other hand, it hasn't grown much and looks a bit weedy (like those apples do), then it does need feeding.
I would certainly recommend avoiding giving anything with nitrogen in to the plums. Sulphate of potash might be helpful for them, though, as this helps to feed fruit (although they probably don't actually need it).
The apples definitely need a more general fertiliser, like blood, fish & bone, growmore, or poultry manure, though.
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