| The
Evolution of Plant Nutrition
Hydroponic
cultivation is well recognized as a superior method of agriculture.
Plants are fed their exact nutritional requirements and are provided
with absolutely ideal growing conditions. Consequently, plants thrive.
Having
witnessed the substantial improvements in plant quality and yield
delivered by hydroponic cultivation scientists have taken a keen
interest in further developing this field. The school of thought
is "If we can make it this good, we can make it even better!"
These
eager minds with their unquenchable desire for perfection have succeeded
in taking hydroponic agriculture to a new dimension. The development
of some very important new products has made significant changes
to hydroponic crop production. Other products, that up until recently
have strictly been used for commercial soil farming have successfully
been adapted for use in hydroponics.
It
is possible to fine tune plant nutrition by supplementing the twenty
mineral elements required for plant growth (and contained in good
quality hydroponic nutrients) with biostimulants and nutrient conditioners.
Biostimulants contain natural hormones, vitamins and rare trace
elements that stimulate normal biological functions in plants. They
are best administered as a foliar spray to optimize absorption or
as a seed soak to enhance germination. For example presoaking seeds
in a biostimulant blend of humic and fulvic acids, ziatine and
amino acids will ensure a better percentage of germination and cutting
success while dramatically decreasing germination times.
Nutrient
conditioners complement biostimulants when used as a supplement
in hydroponic feeding methods. Scientifically developed combinations
of hormones and micro-nutrients will energize the microbial activity,
promote cell division and lateral bud development as well as delay
the aging process of plant tissue. Employed as an additive to fortify
a traditional nutritional regime, nutrient conditioners enhance
a variety of functions such as root development, vegetative growth
and fruit and flower production. A nutrient conditioner containing
cytokinins may be added to a hydroponic reservoir to enhance root
development. While nutrient conditioner containing a blend of vitamins
and other growth stimulants will help maintain photosynthesis during
flowering and promote plant vigor.
All
plants require a balance of N-P-K and trace elements to grow.
There are many variables that influence a plants' ability of utilize
these nutrients adequately. pH and temperature will greatly effect
nutrient uptake. Through a supplemental feeding plan of biostimulants
and nutrient conditioners the grower will ensure that plants receive
a naturally balanced diet which can help compensate for micro-nutrient
deficiencies caused by temperature variations and small pH fluctuations.
While making sure plants receive the maximum nutrient uptake biostimulants
and nutrient conditioners will also protect plant health and discourage
insect infestation.
The
initial presoak biostimulant should have additional nitrogen and
potassium to compensate for the sudden acceleration in growth that
it will provoke.
Humic
and fulvic are chosen for their agronomic value.
They
help facilitate faster nutrient uptake and accelerate stem and leaf
growth. They are responsible for natural chelation of micronutrients
and enhanced macronutrient uptake. Fulvic and humic acids are bi-products
of humus. Humus shale was created by the degregation of organic
matter deposited over 75 million years ago and is currently being
considered for organic certification.
Ziatine
(Cytokinic complex) a derivative of seaweed, found in microbes and
plant exudes,activates
seeds out of dormancy, improving early germination and growth. Ziatine
enhances root growth and plant metabolism and stimulates cellular
division. It is known to regulate enzymatic and metabolic activities
and enhances absorption and nutrient transportation.
The
natural amino acid, Glycine Betain is the most powerful antistress
agent. It guards against temperature variation, cold, draught,
flooding and osmotic stress. It is credited with promoting better
nutrient absorption within the plant and activates root growth.
Trace
elements will protect plants and increase the rate of penetration
of foliar nutrients. They ensure complexation, a natural method
of absorption.
The
synergy of these organic components combined in a presoak provide
a healthy and vigorous start to virtually all plant life.
Biostimulant
foliar sprays and nutrient conditioners added to a regular nutrient
feeding schedule during the vegetative stage can alter the duration
of vegetation and aid transition to the bloom cycle. The vegetative
stage of a plant's life is a crucial period for building strength
and storing nutrition to support flowering.
Calcium and magnesium are needed for vegetative growth and are essential
chlorophyll building blocks.
I.P.A.
(WHAT IS IT and WHERE DOES IT COME FROM???)
improves the systemic transportation of nutrients. It activates
photosynthesis while stimulating the root system. Glycine Betain
is also very helpful in the vegetative stage.
During
the flowering stage the absence of nitrogen and potassium will shift
plants from vegetative to reproductive growth mode. A synergetic
blend of of IPA and Glycine Betain with phosphorous and potassium
will safeguard plants and continue to support strong growth when
used as a foliar spray. Adding a nutrient conditioner specific
to flowering and containing a bulking agent will maximize blooms
and increase fruit and flower size and weight.
People
are encouraged to eat a well balanced diet with at least seven servings
of fruit and vegetables a day. With today's stressful lifestyles
and hectic schedules, Health Canada has recently acknowledged that
this is an almost impossible expectation for the majority of people.
Therefore, they have recommended, as extra insurance, that all adults
supplement their diets with a mineral rich multi-vitamin, once a
day.
High
quality hydroponics nutrients should be able to adequately supply
a plant with everything it needs providing all other growing conditions
are optimal. This is seldom the case. Unexpected environmental
changes or other hiccups in regular routines often lead to nutritional
deficiencies which will send a plant into shock, stunt growth and
cause other stresses. Supplementally compensating with hormones
and vitamins will provide extra insurance that plants will be able
to withstand the stress and flourish in less than optimal conditions.
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