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[IBC] educate me !!
Hi all.
Downloaded the fertilizer spreadsheet and poured over it with interest. I fully understand this is not a complete list of fertilizer manufacturers, and that Dyna-Gro isn't likely to list manufacturers or products that exceed their own specs. However, the data it contains seems to suggest that Dyna-Gro products are better than others because (these are my uneducated assumptions) ...... The Nitrogen included in their products does not come from Urea. As an uneducated fertilizer user I'm assuming this is a good thing, however, I have no idea why. All the elements they list from Phosphorus to Zinc are at measurable amounts, where others listed are not as complete. I understand the importance of trace elements. I watched a JPN slowly turn yellow when I used a fert that did not include them, then back to green when I used a fert that did. They're obviously important, but do plants really need obscure amounts of Boron, Chlorine, Cobalt and Moly ? Are there any case studies that show these elements are actually beneficial ? Thanks to my more educated friends. Mark Hill - Harrisburg PA (currently working in Trinidad CO) ************************************************** ****************************** ++++Sponsored, in part, by Kevin Bailey++++ ************************************************** ****************************** -- The IBC HOME PAGE & FAQ: http://www.internetbonsaiclub.org/ -- +++++ Questions? Help? e-mail +++++ |
#2
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In a message dated 7/30/2005 1:47:05 PM Eastern Daylight Time,
writes: The Nitrogen included in their products does not come from Urea. Urea is produced commercially by the dehydration of ammonium carbamate (NH2COONH4) at elevated temperature and pressure. Ammonium carbamate is obtained by direct reaction of ammonia with carbon dioxide. These reactions are normally carried out simultaneously in a high pressure reactor. http://www.extension.umn.edu/distrib...ms/DC0636.html All the elements they list from Phosphorus to Zinc are at measurable amounts, where others listed are not as complete. I understand the importance of trace elements. I watched a JPN slowly turn yellow when I used a fert that did not include them, then back to green when I used a fert that did. They're obviously important, but do plants really need obscure amounts of Boron, Chlorine, Cobalt and Moly ? http://edis.ifas.ufl.edu/MG091 From my alma mater, THE University of Florida. Hail the Orange and Blue Go Gators Billy on the Florida Space Coast ************************************************** ****************************** ++++Sponsored, in part, by Kevin Bailey++++ ************************************************** ****************************** -- The IBC HOME PAGE & FAQ: http://www.internetbonsaiclub.org/ -- +++++ Questions? Help? e-mail +++++ |
#3
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Mark Hill - President, EESiFlo Inc. wrote:
All the elements they list from Phosphorus to Zinc are at measurable amounts, where others listed are not as complete. That's (partly, at least) because trace elements are needed in such small amounts that the units of measurement are meaningless to most people. The "major" minor elements must be listed by % on the Florida fertilizer label. I understand the importance of trace elements. I watched a JPN slowly turn yellow when I used a fert that did not include them, then back to green when I used a fert that did. They're obviously important, but do plants really need obscure amounts of Boron, Chlorine, Cobalt and Moly ? Yes. Are there any case studies that show these elements are actually beneficial ? Yah, but rather than that . . . EVERYONE: Read this: http://edis.ifas.ufl.edu/MG090 (Plant Nutrients and Fertilizers for the Non-farmer) This is "Fertilizers 101" for the Florida Master Gardener program and is the best simplified explanation I've yet found on the subject. Everyone who grows should nearly memorize this. At the very least download the PDF file and print it out for your notebooks. Note the section on fertilizer advertising claims. And also note the section on micronutrients. It is referring to plants grown in the ground, but it also will apply to plants in bonsai soil. (In a nutshell, the micronutrients ARE important, but most fertilizers contain too little of them. This is why I purchase a bottle of "General Purpose Minor Element Spray"* and add 20cc to every bottle of fish and seaweed emulsion I purchase. It contains chelated Mg, Fe, Mn, Zn, Cu, and S. I rely on the horse manure compost I add to my soil mix for the "minor" minor elements.) If you want more information on fertilizers, do a search for "fertilizer" or "trace elements" or "micronutrients" at http://edis.ifas.ufl.edu/ And, the *edis* site is the best horticultural education you can find outside of a college major in it. :-) So, look through it and make your bonsai better (though I doubt you will find anything on "bonsai." * I do NOT spray it. It is sold as a "foliar spray" but since foliar sprays do little or no good that's merely another marketing ploy to sell something. Mix it in with your fertilizer if you want to efficiently deliver it to your plant. Jim Lewis - - This economy is a wholly owned subsidiary of the environment. - Gaylord Nelson ************************************************** ****************************** ++++Sponsored, in part, by Kevin Bailey++++ ************************************************** ****************************** -- The IBC HOME PAGE & FAQ: http://www.internetbonsaiclub.org/ -- +++++ Questions? Help? e-mail +++++ |
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