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Azalea chlorotic
In addition, Miracle Grow claims they are selling you plant "food". That
is false advertisement. We do not feed trees. They are autotrophs. Food is a substance that provides and energy source, mostly. Nutrient is a substance that provides an energy source, elements, and other substances essential for life, in types and amounts that can provide a healthy life. Fertilizer is a substance that provides elements, as salts mostly, or in bonded forms, that require microorganisms to alter to forms that can be absorbed by plants. I do not call elements - nutrients, however nutrients would contain elements. You can put a file in a folder but you can't put a folder in a file. A list of elements can be found he http://images.google.com/imgres?imgu...US211%26sa%3DX 17 Elements For Life - Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorus, Potassium, Calcium, Sulfur, Magnesium, Manganese, Iron, Copper, Boron, Molybdenum, Chlorine, Zinc, Nickel [Sodium, Cobalt, Selenium?] 14 essential elements are obtained by trees from the soil. I do not have a list of which ones they are. Wood is the substrate of the base of the food web, the mycorrhizal fungi. Mycorrhizae tend to be abundant in composted wood such as nurse logs. We had great success at tree biology workshops finding mycorrhizae during dryer times, in and about nurse logs. I believe, you don't have to agree with it, please, just think. I think that by applying mulch as I recommend under mulch here that you facilitate the mycorrhizae rather than just adding what I believe you mean as humus, over a lawn. Not that its bad in any way, adding humus i.e.. Mulching - http://home.ccil.org/~treeman/sub3.html and http://www.treedictionary.com/DICT2003/M/ Look up "Mulch" Did I say - Mycorrhizae are organs that facilitate the absorption of elements essential for healthy growth. Mycorrhizae resist the Demons Of D. Mycorrhizae facilitate the absorption of elements. Demons of D are those things that add up to the big D word DEATH. E.g., Depletion, disruption, and dysfunction. Elements can be depleted. Disruption, you get hit my a Mac truck. Dysfunction, some organ such as mycorrhizae may not function. Major Elements C; H; N; O; P; K; S; Mg; Ni; Fe; Ca; Zn; Mo; Mn; B; Cl; Cu There is the law of the minimum. It states the element that is deficient the most, would be the determining factor in the health of the tree. I think research would be wise in the search for the optimum fertility level for trees. I did some soil testing in the upper four inches of soil and from at and about nurse logs in old growth forest which contain hemlocks and white pines. And much more. Here is my average on my testing for the latter. These where five test. 3 test sites where in Allegheny National Forest(Hearts Content) Pennsylvania and two where in Allegheny National Forest(Tionesta Scenic area) Pennsylvania. Results are in Pounds Per Acre PPA. AVAILABLE ELEMENTS P 8.2 K 236 Mg 107 Ca 594 Al 220.6 Fe 110.8 Mn 118.6 Zn 11.96 NO3-N 28.8 Did not get B or CU. Organic matter was 29.32% Ex Acidity 81 ME/100G Salts mmho: 0.01 mmho/cm Moisture %3.97 Water Soluble mg/kg B 1.0738 ACID Soluble (mg/kg) Cd 0.976 Cu 6.768 Ni 5.71 (Penn State discovered the element Ni to be essential in small amounts) Mn 426.378 Co 3.084 Zn 46.818 Pb 101.792 Cr 5.078 P 726.226 The CARBON TO NITROGEN RATION was 27:1 pH 4.2 WOW That would be a goal of mine if I was going to provide essential elements professionally. I did not see to many people in the old growth sections. There was more calcium at a nurse logs in a separate test. We don't feed trees, however, we can feed the soil with composted wood (chips and nurse logs) and leaves. We can feed the system. I have some results for some sick hemlocks (elements in soil) -- Sincerely, John A. Keslick, Jr. Arborist http://home.ccil.org/~treeman and www.treedictionary.com Beware of so-called tree experts who do not understand tree biology. Storms, fires, floods, earthquakes, and volcanic eruptions keep reminding us that we are not the boss. "Stephen Henning" wrote in message news Phisherman wrote: Check for tiny mites/insect damage. If there is no sign here, give it a half dose of acid fertilizer (such as Miracle Grow or a fertilizer for azaleas). You should see results in 2-3 weeks. Miracle Grow is more of a problem than a cure. It is very high in nitrogen which is not what azaleas need. It is water soluble so it is only a temporary measure designed to sell miracle grow. Hollytone is a good organic slow release, long-lasting, fertilizer but I only recommend using it once in the spring and at half the rate on the package. -- Pardon my spam deterrent; send email to Cheers, Steve Henning in Reading, PA USA http://rhodyman.net |
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