All plants require certain nutrients for good growth. Carbon and
oxygen are taken in through the leaves during photosynthesis,
while the rest of the required nutrients normally are taken up
through the roots.
Most nutrients and water are taken up through the very fine
roots called root hairs. These are very small, but are extremely
numerous and effective in nutrient uptake. The more soil the
roots are able to penetrate, the more potential they have to
contact needed nutrients and water. Therefore, providing a
noncompacted, well-drained soil is important for optimum growth
of most plant species.
These tips will help your plants develop healthy root systems
for maximum nutrient uptake:
Do not work in your garden when the soil is wet. Working the
soil when it is too wet causes compaction which makes soil
particles clump together, reducing the pore space between
particles. This makes it more difficult for roots to penetrate
the soil and leads to reduced water infiltration and increased
runoff. While it may be tempting on those warm early spring days
to dig up the garden, you should wait. The right time to work in
your garden is when the soil crumbles slightly when you squeeze
it in your hand. Add organic matter to your soil. Organic matter
is extremely important in improving soil structure and
increasing pore space. Organic matter improves the ability of
the soil to hold moisture during dry spells. Worms thrive on
soil organic matter and are excellent at improving the structure
of the soil through their tunneling activities. Also, their
castings or excrement is an excellent source of plant nutrients.
Compost and peat moss are both excellent sources of organic
matter. Mulch your soil. Organic mulches such as bark chips or
grass clippings help protect your soil from the impact of
raindrops. They prevent crusting of the soil surface. Crusting
of the soil can prevent seeds from sprouting and reduces
infiltration of water into the soil. As mulch decomposes, it
also adds more organic matter to the soil. Remember that some
mulches will lower the pH (the acidity of the soil), making some
nutrients less available. Use raised beds for a garden if your
yard has heavy, poorly drained soils. Raised beds can be made
using tillage equipment. You can make permanent beds with
rot-resistant wood, filled with a mixture of soil and organic
matter. But, you may decide that growing plants tolerant of wet
conditions is a less troublesome, more rewarding experience! If
you treat your soil well, your plants should develop extensive
healthy roots capable of taking up the required plant nutrients.
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