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#17
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Soil test??'s
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#18
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Soil test??'s
Rusty Mase wrote:
What is a problem here and Victoria has something posted about it here is the weed and feed products. There was an ad in the paper the other Agreed. However, I would thing that folks that go through the trouble of reading a forum like this one, or listen to the radio shows on the weekend or watch CTG on PBS really are not going to go and buy these products. Ok, raise your hands those of use who use these things? Anybody? Soil nutrient chemistry is a lot more interesting and fun that that. Indeed! We just planted our 4-inch tomatoes into temporary 1-gallon pots using Vortex soil, some organic fertilizer, some mineral mix, and dry molasses. We then watered them with seaweed solution. We'll see how they do. This is the first time we've started tomatoes this way (we also have some seeds in 4-inch pots). -- Victor M. Martinez http://www.che.utexas.edu/~martiv |
#19
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Soil test??'s
On Sat, 8 Mar 2003 14:07:39 +0000 (UTC), (Victor M.
Martinez) wrote: Agreed. However, I would thing that folks that go through the trouble of reading a forum like this one, or listen to the radio shows on the weekend or watch CTG on PBS really are not going to go and buy these products. Ok, raise your hands those of use who use these things? Anybody? My garden is most likely going to be filmed for Central Texas Gardener in June of this year. I have to determine when I feel it's at peak. I was floored when the offer was made. I'm so excited I can hardly believe it. Here is a link to some photo's at times during the growing season. http://home.austin.rr.com/animaux/ne...n/Page_1x.html This little website (I'm computer illiterate) was thrown together so my mother could see the gardens. I do plan to fix it and make it more informative. I'm also writing a book with a working title of "When North Moves South." I find the most exasperating problem is when people move from piney, moist forests with 50 inches of rain and up, in acidic soils with available nutrients, then try to garden in our soils which are the complete opposite. I will only be writing about my experiences, not making any claims to be a pro or expert, just a simple gardener, as H.H. The Dalai Lama always says, he's just a simple monk! I think he is much more humble than I Victoria |
#20
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Soil test??'s
animaux wrote:
My garden is most likely going to be filmed for Central Texas Gardener in June of this year. I have to determine when I feel it's at peak. I was floored when the offer was made. I'm so excited I can hardly believe it. Cool! You'll enjoy Linda and her crew. She's a bit of an oddball, but she's very sweet and easygoing. Cheers. -- Victor M. Martinez http://www.che.utexas.edu/~martiv |
#21
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#22
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#23
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On Fri, 07 Mar 2003 14:48:17 GMT, animaux
wrote: Compost should not be used on soils where phosphorous levels are known or suspected to be high. Why? Compost's chemistry is generally poorly quantified if at all, and its phosphorous content can be quite high. This is standard Aggie soil lab recommendation. |
#24
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#26
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Terry Horton wrote:
Well, yes and no. :-) Phosphorus is in constant flux in soil (a single atom of phosphorus could be available and unavailable to the plant several times a day). Roots hairs exude acids that solubilize nearby phosphates. And the same acids are readily neutralized by the soil. I'd agree there is a state of flux, but I'm guessing the overall balance remains neutral. point the owner has to begin the process of removing more phosphorous If the P available is not bio-available, then the plants will suffer from lack of P. But you know this. from the soil than is being applied, or suffer increasing problems from P in the long run. So how do you propose dealing with the fact that the P in the soil is not available for plants to use? Acidify the soil? That ain't gonna work. Perhaps an effective treatment for high P would involve removal of grass clippings and leaves followed application of a low-P organic fertilizer. Synthetic fertilizers and compost (which tends to be poorly analyzed but in general relatively high in P) would be avoided. I fail to see how that would make existing P available for the plants. Am I missing something? -- Victor M. Martinez http://www.che.utexas.edu/~martiv |
#27
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Soil test??'s
On Sat, 08 Mar 2003 19:38:11 -0600, (Joe Doe)
wrote: In article , (Terry Horton) wrote: Phosphorous is generally associated with surface runoff rather than through percolation. That is true. But then it is also a problem of managing erosion/land management. Hopefully not a big issue for most home gardeners. :-) Incidentally this PDF (http://pubs.cas.psu.edu/FreePubs/pdfs/uc162.pdf) has a nice picture of the distribution of areas in the country with high P and addresses many issues of management. An impressive little publication. I've saved it to my HD. Thanks. The book is written in a style where two old codgers are debating how to do things: In general it is relatively superficial because it is wide ranging. They are not overly dogmatic over too much: for example they describe fertilization practices for a lawn and then say they themselves do not do what they recommend - they say they fertilize every other year or so because they do not particularly care about their lawns and do not want to mow or water often and so limit fertilizer. Despite the light treatment of many topics, they raise other interesting points: 1) Predatory insects as a control mechanism cannot work too effectively, because if the prey levels fall too much the predator will move to greener pastures. They say fire ants are the champion predators (much better than ladybugs etc.) and if you could find a way to live with them, you would have a tick and flea free yard!! Green lacewing adults feed on nectar and pollen. Providing food sources during the adult stage encourages them to stay put. And you can always re-apply. ;-) Fire ants? Ever see the movie "The Naked Jungle"? A cure worse than any disease. 2) Raise the possibility of mulches having allelopathic effects: strawberries mulched with hay yield considrably less than those mulched with a synthetic mulch. I have since done a search and confirmed literature exists on allelopathic effects of various mulches. This shows the world is more nuanced than the genrally held view that mulching only does good. This has been understood for many years. Don't most mulches lose their allelopathic effects with age? |
#28
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Soil test??'s
On Sun, 09 Mar 2003 20:07:25 GMT, animaux
wrote: On Sun, 09 Mar 2003 20:07:25 GMT, in austin.gardening you wrote: On Sat, 08 Mar 2003 23:52:50 GMT, (Terry Horton) wrote: On Fri, 07 Mar 2003 14:48:17 GMT, animaux wrote: Compost should not be used on soils where phosphorous levels are known or suspected to be high. Why? Compost's chemistry is generally poorly quantified if at all, and its phosphorous content can be quite high. This is standard Aggie soil lab recommendation. I rarely follow aggie instructions, nor do I always trust their methods...being a land grant University and all. One aggie pest control seminar I attended should've been titled "How to Become a Superfund Site". :-) I left with an arm-length list of chemical pesticides, with hardly a mention of an alternatives. But there's a sustainable gardening wing at aggieland universities too. Remember that our Texas Master Gardener and Texas Master Naturalist programs are out of TAMU. Benny Simpson, Skip Richter, Jill Nokes to name a few... all Aggies products. The fellow that held the lecture on high P soils was recommending Sustane (this was pre-Ladybug :-). I've been a gardener all my life and nothing has ever been more viable to soil structure and texture than compost. I'll stick with my own findings. Whatever works for you. On the other hand, finally the aggies came to the conclusion all of us organic gardeners have known for decades that, slow release organic fertilizer is superior to any and all other forms of synthetic fertilizers. The y don't force feed and make turf dependant, but they add OM to the soil which feeds organisms which make available elements which otherwise would be tied up in the soil. Whether or not this applies to you in Round Rock you'll have to determine. Organic gardeners (like me) who live on high-moderate P soils (100ppm or so) can not turn away from the devastating effect on soil mycorrhizae referred to earlier. Mycorrhizal association is an _integral part_ of the physiology of most of the plants we grow. Reducing nutrient input to help grow soil organisms that will extract those nutrients for you.... organic gardening doesn't get any more cool than that. |
#29
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#30
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