Agriculture Reference
In-Depth Information
Subsequent pruning simply needs to maintain the open center
by removing vertical limbs and limbs that grow inward
toward the center. Limbs and sublimbs should be headed back
to an outward-facing bud each year to make sure new fruiting
wood is growing each year, and limbs should be pruned as
needed to maintain the desired shape and size of tree and to
avoid broken limbs.
Nut Trees
Compared to fruit trees, nut trees are easier to prune and care
for. The only downside is that, except for filberts, they grow
to be quite large and thus require as much as 50 feet between
trees. Walnuts and, to a lesser extent, pecans and hickories
produce a chemical called juglone in their root systems that
inhibits the germination of other plants, so they shouldn't be
planted close to a garden. A number of trees are unaffected by
juglone, including cherries, oaks, pears, and most
cone-bearing trees, among others. The only vegetables
unaffected by juglone are onions, beans, carrots, corn,
melons, and squash.
Chestnuts, walnuts, and other nuts are highly nutritious.
Most nut trees aren't self-fruitful and therefore must be
planted in pairs. The same caveat applies to nuts as to fruits in
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