Niels skrev:
Ja, bare sådan en lille dunk med en puster på, ligsom til vindus-pus væsker...
Men spørgsmålet er, om der er nogle folk derude der har erfaringer med Foliar feeding?
-Princippet forklares hurtigt, hvis man lige søger det i gooooogle... Men i bund og grund at planterne KAN
optage næring igennem bladende, såvel som rødderne... Søger pålidlige tips og erfaringer!
skulle det vist gøre, altså virke>
FOLIAR APPLIED ORGANIC FERTILIZER
FOLIAR FEEDING -
Foliar feeding, using 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.
The effectiveness of 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 applications.
TIMING
The best 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.
Avoid foliar spraying when –
• When the temperature above 80F.
• When the weather is hot and dry and water vapor is leaving the cells.
Foliar spray –
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.
• When air temperature is cooler than soil surface temperature.
NOTE: A biological surfactant can reduce water tension and improve the absorption rate of foliar sprays.
Where possible, 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 recommended. For established growth, a more sour (acid) solution (pH 6.2) is recommended.
An effective foliar application can produce results in 1 to 6 days. Use a refractometer to detect results.
NOTE: 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.
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