Article View: ca.environment
Article #5301Plant FOOD????
From: John A. Keslick, Jr.
Date: Sat, 05 Oct 1996 00:00
Date: Sat, 05 Oct 1996 00:00
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5222 bytes
I have a hard time understanding most tree literature. Just as most of the stuff in our industry it was poorly written. Our industry is full of words that mean nothing. An example is feeder roots. What do they feed? I do know of and have seen non-woody roots that ABSORB water and elements in which an organ mycorrhizae facilitates the absorption process of water and essential elements. And I have seen woody-roots which offer support, store food, i.e., starch, and transport food from the leaves toward the non-woody roots and transport water and elements from the non-woody roots toward the leaves. But, I have never seen a FEEDER ROOT THAT UPTAKES A NUTRIENT. This type of literature makes companies look very nonprofessional. Maybe this will help clean up some of the myth or misconception. I do not often get involved but: In USA most of our trees and mycorrhizae uptake water and "ELEMENTS" Not nutrients. A nutrient is a substance that contains an element with an energy source and an element without. Nitrogen is NOT a nutrient for chlorophyl containing trees. Nitrogen is NOT FOOD. The only thing nitrogen does, is mainly make things grow big green and fast. The energy comes from photosynthate not elements. Example, if we were to communicate with a tree biologist in the US, and I was to say that the NUTRIENT content of the woody roots was very concentrated you would not have the foggiest idea what I meant. See when I say "nutrient" I am referring to an energy source. THE STARCHES STORED IN THE LIVING SYMPLAST (PARENCHYMA CELLS) IN THE WOODY ROOTS are the stored nutrients. Trees store nutrients in the form of starch in living cells, only in the symplast. Trees here store water as bound water to cellulose walls in the APOPLAST. We do not know where trees store ELEMENTS (nitrogen, iron, zinc, boron, etc.). No research has ever been done to show where this is done. We do believe that trees store ELEMENTS. See trees do three things. 1. THEY LOAD. a. water and elements from non-woody roots and mycorrhizae. (most cases) b. Photosynthate from leaves and the cortex. 2. THEY STORE. a. water in the APOPLAST (ELEMENTS? We do not know) b. NUTRIENTS in the non-water soluble form of starch and oils in the symplast. Trees only store starch(NUTRIENTS) in living cells. 3. THEY USE. a. Water like a posted note is taken off and used where needed. b. ELEMENTS we do not quit know too much about this, i.e.,how they are stored. c. Starch is transformed into Glucose and used as a NUTRIENT and used where needed. Primarily for defense. We have at least fourteen essential ELEMENTS. See in my Country we have people selling what they call TREE FOOD. People think they are feeding their trees chicken soup. Also these doses of nitrogen that they are calling Nutrients can blow the mycorrhizae and cause many pest and fungus problems. It is very important to properly define your terms. See: Kloepper J. W. et al, Proposed Elimination of the Term Endorhizosphere, 1992, Phytopathology 82: 726-727. It defines some of the problems that can arise when poorly defines terms are used. Also see DR Alex L. Shigos paper on terms in Agricultural Research, U.S. Dept. Arr., Agr. Res. Ser. 35, No5, 1987. Also, Many of our microorganisms associated with our trees receive some if not all of their nutrients from the tree in a symbiotic way. The old books used to say that in the spring food and water come in through the vessels and push the buds open. We have proven this incorrect, scientifically. Also one generality between us and a tree is we each burn glucose as a fuel, an energy, a food. However, a major specific between us and a tree is that the tree manufactures its own food. We must have someone or something else manufacture our food (fuel, energy) for us. Yours Truly John A. Keslick Jr. John A. Keslick Jr. Tree Biologist & Professional Modern Arborist Plus Certified Chester County Master Composter KESLICK & SON MODERN ARBORICULTURE PRODUCTS, EDUCATION AND SERVICE 214 N. Penn Street West Chester, PA 19380 610-696-5353 E-mail:"treeman@locke.ccil.org" Check out our new WEB SITE at http://www.ccil.org/~treeman/ -- \\\\\\\\\\\\\\\\\\\//////////////\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ John A. Keslick Jr. If you are not OUTRAGED you're not Tree Anatomist & Tree Biologist paying attention. Phone: 610-696-5353 Support ORGANIC FARMERS. organic tree treatment web site: http://www.ccil.org/~treeman/ OR http://www.ccil.org/~kenm/env/ \\\\\\\\\\\\\\\\\\\//////////////\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 10df74,99465d39375bc589,start X-Google-Attributes: gid10df74,public From: "John A. Keslick, Jr." <treeman@pond.com> Subject: Plant FOOD???? Date: 1996/10/05 Message-ID: <3256751A.7E6C@pond.com> X-Deja-AN: 187732442 content-type: text/plain; charset=us-ascii organization: Keslick & Son Modern Arboriculture mime-version: 1.0 reply-to: treeman@pond.com newsgroups: ca.environment x-mailer: Mozilla 3.0Gold (Win95; I; 16bit)