FOLIAR APPLIED BIO BASED ORGANIC FERTILIZER
FOLIAR FEEDING -
Foliar feeding, using
bio based, natural organic foliar fertilizer, is an effective
method for correcting soil deficiencies and overcoming the soil’s
inability to transfer nutrients to the plant. Tests
have shown that up to 90
percent of a foliar fed nutrient solution can be found in the
smallest root of a plant within 60 minutes of application.
A project conducted at Michigan State University, using radioactive
tagged nutrients, proved that foliar feeding can be 8 to10 times more
effective than soil feeding.
effectiveness of bio based foliar applied nutrients is determined by (1) The
condition of the leaf surface, in particular the waxy cuticle. The cuticle is only partially permeable to water and dissolved nutrients and, as a
result, it can limit nutrient uptake. (2) The length of time the nutrient remains
dissolved in the solution on the leaf's surface. (3) diffusion, the
movement of elements from a high concentration to a low concentration. For
diffusion to occur, the nutrient must dissolve. and (4) The type of
formulation. Water-soluble formulations generally work better for foliar
applications as they are more easily absorbed when compared to insoluble
solutions. Water insoluble formulations are generally slow acting because they
must dissolve before they can be absorbed and are more applicable for soil
time to foliar feed is late evening to early morning. These are the
times when the stomata (the small opening on the leaves) are open.
foliar spraying when –
When the temperature above
When the weather is hot and dry and water vapor is leaving the cells.
When the temperature is 72F or below.
Early in the morning when the cells of the leaf are full of water and
dew has collected on the foliage.
When air temperatures and humidity both equal 135 or less.
temperature is cooler than soil surface temperature.
surfactant can reduce water tension and improve the absorption rate of
bio based foliar sprays.
the pH of a foliar spray should be between 6.2 to 7.0. To promote
young plant growth a sweeter (alkaline) solution (pH 7.0) is
established growth, a more sour (acid) solution (pH 6.2) is
effective foliar application can produce results in 1 to 6
days. Use a refractometer to detect results.
Ensure fertilizer is
thoroughly mixed in water - apply
in a fine mist - avoid drenching.
No special equipment is required - Foliar solutions can be applied
with the aid of conventional spray equipment
i.e. fan sprayer, back pack sprayer, hi-boy, low or high volume
ground sprayer, aerial sprayer etc.
foliar solutions contain nitrogen which acts as an electrolyte to carry
nutrients into the plant and phosphorus which promotes internal circulation.