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Introduction Of The Vegetable: Nature's Treasure
Trove for Man's Wellbeing
Vegetables are important for our good health and
sense of wellbeing. They are a natural source
of carbohydrates, proteins, minerals, vitamins
and antioxidants. Doctors and nutritionists recommend
an increased intake of vegetables in the daily
diet to keep chronic illnesses like heart disease,
cancer and diabetes at bay.
Definition and History of the
Vegetable
Simply defined, any section of a plant that is
edible is a vegetable. It is interesting to know
that what we consider to be 'vegetables' are only
different parts of a small group of plants. For
instance, the broad bean is a seed, green beans
are immature seedpods, the chayote is a fruit,
lettuces are leaves, broccoli is a flower stem,
and the globe artichoke is a flower.
When mankind started inhabiting temperate regions,
there was a pressing need to cultivate crops and
move away from the life of a hunter and gatherer,
an occupation predominant of the tropics. The
first signs of agriculture were in the Fertile
Crescent (modern Iraq extending till the southern
regions of Turkey), followed by India, China,
Egypt, Peru and Mexico. Historical records reveal
that most of the common vegetables that we have
today were cultivated in the 1st century A.D.
Europeans first came into contact with Central
American and South American native vegetables
in the 16th century. In the nineteenth century,
botanists preoccupied themselves with crossing
and hybridization, leading to kitchen gardens
and large scale cultivation.
The French made vegetable growing literally an
art form with their famous potager style of vegetable
gardening. The best example of this is the decorative
vegetable garden at the Chateau de Villandry.
Since the last few decades of the 20th century,
organically grown vegetables and genetically modified
ones have been fast gaining popularity.
The main botanical families from which we grow
vegetables are listed below with relevant examples
for each of them.
The Chenpodiceae family has given us the beet,
chard, spinach, American quinoa and the sugar
beet. From the large family of the Compositae,
we have the globe artichoke and the salad vegetables
- chicory, dandelion, endive and lettuce. Sweet
potatoes belong to the Convolvulus family. Broccoli,
cabbages, cauliflowers, kales, mustard, radishes
and watercress belong to the Cruciferae family.
To the cucumber family Cucurbitaceae, belongs
the melon, an amazing range of marrows, squashes
and of course the cucumber. Asparagus, garlic,
leek, onion, and shallots belong to the lily family.
Alfalfa, broad beans, chick peas, fenugreek, kidney
beans, mung beans hail from the vast Leguminosae
family. Eggplants, peppers, potatoes, and tomatoes
are from the Solanaceae family. From the tropics,
we have the yam family and the mallow family of
the okra.
What makes a vegetable worthwhile to cultivate
revolves round a few factors like its desirable
taste and flavor, its variability, its potential
for improvement and hybridization, its acceptance
outside its local region of popularity and how
easy it is to harvest.
Most vegetables are annuals. Carrots, onions,
celery, parsnips and cabbages are biennials. Perennials
are very few: asparagus, globe artichoke and the
seakale fall under this category.
Tips for Growing Vegetables
Most vegetables give good yields if the ground
rules of planting namely, the location, soil preparation,
and sowing or transplanting seedlings are observed
carefully.
Location for Planting Vegetables
The planting site should enjoy a minimum of six
hours of sun everyday. A fence should be erected
to keep animals away and to lend support to climbing
plants like peas, beans and tomatoes. Tall plants
should be planted on the north side and shorter
plants towards the front. Perennial vegetables
should be planted to one side so that they are
not disturbed when the beds are tilled to grow
annuals.
Soil Considerations for Vegetables
Soil for planting vegetables should be moist,
well-draining and free of big pebbles. It must
be enriched with a lot of compost, organic manure
or peat. The subsoil should not be too sandy,
clayey or hard. Vegetables prefer a slightly acidic
soil and should be tested for pH levels to be
amended if necessary.
Planting Vegetables
When transplanting, seedlings have to be thinned
to ensure healthy growth of strong plants. Row
planting of seedlings is recommended for most
vegetables. While some can be planted in square
or rectangular spaces like the sweet corn, leafy
vegetables are better sown in drills and then
replanted. While sowing seeds, the planting depths
and spacing requirements have to be carefully
followed. During growing time, liquid fertilizers
can be used. Mulching the site will help contain
weeds. Adequate pest control measures against
the flea beetle, flies, aphids, caterpillars and
fungus pests should be taken. Rotation of crops
is recommended every three years, if the same
site is used over and over again to grow vegetables.
Propagating Vegetables
Seed propagation is suitable for most plants.
For example, seeds collected from the dried pods
of peas and beans and the clusters of onions and
carrots.
All in all, it is a very rewarding pastime in
spring and summer to grow one's own vegetables
and preserve the fruits of that labor by canning
and freezing the excess that nature blesses us
with.
Also
See our Growing Tomato Guide
If you like Vegetables....These
pages might also interest you:
Allium
Directory, Amaryllis
Directory, Begonia
Directory, Crocus
Directory, Daffodils
Directory, Dahlia
Directory, Hyacinth
Directory, Iris
Directory, Lily
Directory, Tulip
Directory
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