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Foliar Feeding ? Yes Or NO

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Maybe Franco can chime in on this but I want to know if there are really benefits of foliar feeding? I ask this only cause I did some research online and found some people say it does and others say it doesn't have a real effect on plants ..Is this correct?

Anyone here foliar feed their plants and see a difference in growth?

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It's works very well. Foliar feeding is great because of quick action. Some info say: it give your plants extra boost. It's easy way to burn the leafs/plant.Can't be done so often. If u have EC meter try to spray 0.7-0.9-EC. Your fert should be 1/4 strength of normal feeding. Foilar feeding also help to wash yor plant (like rain does).

You shouldn't spray your plant after 2nd week of flowering period.

Spray Leafs it is a natural way to feed/wash plants.( Rain )

FOLAIR FEEDING - Cannabis Growing Guide

Folair feeding seems to be one of the easiest ways of increasing yield, growth speed, and quality in a well vented space, with or without elevated CO2 levels. Just prepare a tea of worm castings, fish emulsion, bat guano, or most any other plant food right for the job and feed in vegetative and early flowering stages. It is not recommended for late flowering, or you will be eating the sprayed-on material later. Stop foliar feeding 2-3 weeks before harvesting. Wash off the leaves with straight water every week to prevent clogging the stomata of the leaves. Feed daily or every other day.

Best times of day to Foliar feed are 7-10Am and after 5 in the evening. This is because the stomata on the underside of the leaves are open then. Also, the best temperature is about 72 degrees, and over 80, they may not be open at all. So find the cooler part of the day if it is hot, and the warmer part of the day if it is cold out. You may need to spray at 2AM if that is the coolest time available. The sprayer used should atomize the solution to a very fine mist; find your best sprayer and use it for this. Make sure the PH is between 7 and 6.2. Use baking soda to make the solution higher PH, and vinegar to make the solution lower PH. It is better to spray more often and use less, than to drench the plants infrequently. Use a wetting agent to prevent the water from beading up, and thereby burning the leaves as they act as small prisms.Make sure you don not spray a hot bulb; better yet, spray only when the bulb has cooled.

Perhaps the best foliar feeding includes using seltzer water and plant food at the same time. This way, CO2 and nutrients are feed directly to the leaves in the same spray.

Foliar feeding is recognized in most of the literature as being a good way to get nutrients to the plant later when nutrient lockup problems could start to reduce intake from the roots.

WARNING!: It is important to wash leaves that are harvested before they are dried, if you intend to eat them, since they may have nitrate salts on them.

NOTE: One grower who reviewed this document comments: "Fish emulsion smells. Bat guano could be highly unsanitary. Stick to the Rapid-Gro, MgSO4 (epsom salts), hydroponic trace element solution. Nitrate salts (The "N" in NPK) are unhealthy to smoke. Personally, I never foliar feed."

It simply does not seem to be necessary when using hydroponics.

Foliar feeding can give your plants a quick boost for a bigger, better, and overall higher yeilding harvest. Foliar spraying will not replace your regular program of root feeding, but this technique will supply valuable supplementary nutrients to plants quickly and efficiently. Foliar feeding is a process of spraying the fertilizer directly onto the plants leaves. Foliar Feeding provides nutrients through the foliage, or leaves of a plant. Growers, with the help of scientists, and researchers, have been studying foliar feeding and have incorporated it into their growing programs for many years. Regular spraying helps to feed the plant through it "stomata", as well as feeding the plant with direct exposure to nutrients, regular spraying also help to keep these "stomata clean and open. Stomatas are the microscopic openings between two adjacent guard cells. Changes in the water content of the guard and subsidiary cells cause the stomatas to open and close in response to changes in water status of the plant. Marijuana plants carry on the process of photosynthesis by combining together several ingredients in their leaves. Some of these materials are gaseous (carbon dioxide), some are liquid (water), and one is energy (light). If one were to look at the anatomy of a leaf, it would be easy to see how these materials are brought to the leaf so that they can form the food. The "stomata" play an important role in allowing the gaseous materials to enter and leave the leaf. Think of a stomata as microscopic pores in your plant's skin. When a plant needs more carbon dioxide for photosynthesis, it opens its stomata. When the leaves get too hot and want to release water during transpiration, the plant once again uses its stomata, this time to let something out. There are many advantages to foliar feeding. Foliar applied fertilizers are three to five times more effective than root nutrition and can successfully reduce the nutritional stress situations of plants. Foliar applied nutrients can also make elements, such as iron, available to plants immediatly when they are not available, or in low amounts in your soil, water, or hydroponic nutrient solution.

Correcting plant deficiency problems

So then spraying is also useful in correcting plant deficiency problems, because of the very rapid absorption of plant nutrients through the leaves. Foliar spraying applications of fertilizer will provide almost instantaneous results. The best time to foliar spray is early in the morning for outdoor growers, and when the lights come on for indoor growers. This is the period when the stomatas are open. However, if the temperature is 80 degrees or above, the spray will have less of a effect, as alot of the stomatas are closed. Foliar feeding is extremley benificial to clones, seedlings, young plants, and all plants while in the vegative stage. Clones are not rooted so they need foliar feeding to develope roots, and prevent yellowing, a common problem amoung propogators (cloners). Once a Marijuana plant is put into flowering it is recommended that you elimanate foliar feeding for the remaining of its flowering stage. Marijuana when hot and dry secretes resin as its natural insulation from the elements. They secrete this resiney insulation to naturally keep the plant cool. If foliar feeding is used in the flowering stage, we bring down the temperature of the plants, thusly resin secretion is less. Foliar feeding should only be done in the vegative stage and ceased two weeks after flowering has began. Foliar feeding should also stop in the flowering stage as nutrients can and will stay on your floral clusters. Not a good thing to be smoking once dried a heavy nutrient infested marijuana. All fertilizers made for soil or either hydroponics make great foliar sprays, especially the fertilizers that contain trace elements (micro nutrients). Usually their mixed at half or reduced strength, to reduce the chances of fertilizer burn to leaves. A strongly mixed spray and close under high intensity or strong sunlight, can burn your leafs from light reflexion cause by the water droplets and/or common fertilizer burn. Foliar feeding is most efficiently achieved with mist-type sprayers. The smaller the particle size, the better the response and the less fertiliser is required to achieve the same end result.

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well Pi2 gave you a really nice answer ;)

I personnaly don't foliart feed very often shame on me :P BUT the few times i've done i did notice the girls really liked it, and like Pi2 stated it has faster absorption so for some deficiencies it can be very efficient. Now you have to find the good products, and for that i won't be able to help don't want to get you the wrong way ;)

Good luck man

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Just what i was lookn for Pi2 great information man!!!Glad you posted this very grateful :biggrin:

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You can use any full spectrum nutrient to foliar feed your plants. To avoid nutrient burn, your nutrient solution strength, should be no more than 1/3rd of the maunufactures reccomended dosage.

* The best temperature is about 72 degrees (when stomata on the underside of the leaves are open); at over 80, they may not be open at all. So, find the cooler part of the day if it is hot and the warmer part of the day if it is cold out.

* Use a good quality sprayer -- should atomise the solution to a very fine mist.

* Always be sure your light is off and cool before foliar feeding! For extra safety, wipe your bulb with a dry cloth after spraying and make sure H.I.D lights are raised to a safe distance (double the distance is a good rule of thumb) to prevent burning.

* Make sure the PH of your solution is between 7 and 6.2.

* To prevent the water from beading up (acting as small prisms) and thereby burning the leaves, for each gallon made, add half of a teaspoon of liquid detergent or a wetting agent.

* Spray leaf surface -- the tops and the undersides -- Stop spraying 2 weeks into flowering -- use sparingly on bud sites.

* Dispose of excess spray according to manufactures instructions— home made fertilizer sprays will be fine for at least 2 weeks.

* Spray one time a week every week, if any white residue is found, rinse the foliage with plain ph'd water to reduce salt build-up.

Benefits of foliar spraying:

* To provide a quick nutrient fix for root-zone nutrient problems or deficiencies; this allows more time to solve the problem(s).

* To prevent excess yellowing on clones.

* To instantly provide nutrients via the leaves, which reduces stress on the suffering plant.

I like to use Rage during veg and Liquid Gold when i flower two very good products. The liquid gold is just that! the amount of resin and weight it puts on is amazing!!

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Peters has developed a special formula for foliar feeding with most of the nitrogen in the urea form. In the past people have had problems foliar feeding with calcium nitrate based nutrients doing more harm than good.

http://www.everris.com/Home/Ornamental-Horticulture/Products/Product.aspx/Specialty-Fertilizers/Water-Soluble-Fertilizers/Peters/PetersProfessional/21140215

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Foliar Feeding works too good, not to do it once a while but it is a pest, since the leaves always look dirty white - no matter what I do - wash them with pure water, rub them clean etc. these spots come back until the buds get fatter and I stop the foliar feeding - I got Plagron Vita Race- put 5 ml in a 1 lire bottle with a fine sprayer - always swear - never again but the girls love it too much and in the end it doesn't matter it just does not look as pleasing to my eyes and on pictures of course as plants left alone or simply flushed properly. Even flushing does not take away the white spots - Guess it is is burnt into the surface of the leaves somehow.. so best LEAVE IT - you run into problems you can easily avoid..lol

Problem is tap water got calcium and flour attached, so that is the white stuff - what detergents are you talking about ?

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Here is more information for foliar feeding.

Nutrient Time for 50% Absorption

Nitrogen (as urea) 1/2 - 2 hours

Phosphorus 5 - 10 days

Potassium 10 - 24 hours

Calcium 1 - 2 days

Magnesium 2 - 5 hours

Sulfur 8 days

Zinc 1 - 2 days

Manganese 1 - 2 days

Iron 10 - 20 days

Molybdenum 10 - 20 days

Meteorological Conditions Favoring Foliar Applications

Time of Day: late evening; after 6:00 p.m.

early morning; before 9:00 a.m.

Temperature: 65-85½ F; 70½ ideal

Humidity: greater than 70% relative humidity

Temperature/Humidity Index: 140-160

Wind Speed: less than 5 mph

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i see some mixunderstanding here in this article mate... "Stop foliar feeding 2-3 weeks before harvesting." and "You shouldn't spray your plant after 2nd week of flowering period." Well, i would say, u can spray your plants even in late flowering with clean rainwater... nature does it sometimes at least... the point is to prevent mold in this case. I would rather say to stop foliar feeding around mid flowering, when buds start to form, and defenately spray your plants with clean or rainwater at least once after your last foliar feeding, to wash away the shit. The strength of the solution depends on the plants, i usually do around 1.4 ec on developed healthy plants. Adding feeding to the solution for clones is slowing the rooting process, so should be avoided. In any other stage it is benefitial. I personally love the fishmix for this purpose. Happy growing guys!!

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i find when doing indoor horticulture you have to clean the leave's or the stomate's get clogged (the little mouth's under the plant that inhale co2)

but was told this buy a oldschool grower that spraying plant hormones and fertilizer's will cause carcinogens to form as a result of the breakdown

of certain spray's im not sure if this is true but if anyone can shed some light on this subject would love to here it

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Foilar feeding

EC=0.8 Veg 10 days. Canna fert NPK 2.2.4. Ph=6.0 Strain=SLHaze

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Folier feeding will make your plants smile.

The House and Garden product 'Magic Green' is exceptionally good, you will see an increase in leaf growth and greenness within 24 hours, but only use it once or twice a week as anymore it will result in lazy root growth! (Due to the plant getting all it needs from the folier feed).

It's really easy not to be bothered to, especially as you have to be up and spraying an hour earlier than the lights come on or turn your lights off for an hour after, but I promise you will get more smoke if you do!

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Folier feeding will make your plants smile.

The House and Garden product 'Magic Green' is exceptionally good, you will see an increase in leaf growth and greenness within 24 hours, but only use it once or twice a week as anymore it will result in lazy root growth! (Due to the plant getting all it needs from the folier feed).

It's really easy not to be bothered to, especially as you have to be up and spraying an hour earlier than the lights come on or turn your lights off for an hour after, but I promise you will get more smoke if you do!

A wealth of info indeed.

House and Garden product 'Magic Green was recommended at my local Hydro shop, should be mixed with a wetting agent lilike Penitrator or sm90

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A wealth of info indeed.

House and Garden product 'Magic Green was recommended at my local Hydro shop, should be mixed with a wetting agent lilike Penitrator or sm90

It has any micro elements in it? " Magic Green" sounds like some Nitrate. I like that staff from Holland:D

CannaNPK224web

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Many good products on the market, really recommended to apply it once a week. I like fishmix, but anyway... The biggest adventage of foliar feeding is the quick absorbtion, so if used and dosed by advanced growers, the deficiencies can be treated really quick before causing any more serious damage or shock to the plants. Happy fat Buds for every1!!

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We provide calcium nitrate fertilizer in bangalore, India. This colourless salt absorbs moisture from the air and is commonly found as a tetra hydrate. It is mainly used as a component in fertilizers but has other applications.   VIEW MORE :-   Calcium nitrate fertilizer

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