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| I'm not going to post all my soil test results and ask for interpretation. however, I do have some specific questions...
pH: In one area, it is 5.1. What is my target range? The report suggested 1000 lbs of limestone per 1000 sq. ft. (but it was noted that a maximum of 75 may be applied per 6-month period. Also, some areas are 5.9. Is that ok? One main area has high Phosphorus level (75ppm). If I were to apply a standard starter fertilizer to this area, would I make the level too high? If so, what sort of starter fertilizer could I use in this area? All of my soil is sandy loam. Organic matter is medium or medium high in the entire yard. The patch where the lawn is yellow has the following results while the surrounding non-yellow area has bracketed results: pH 5.3 [5.6], nitrate nitrogen 5ppm [5ppm], Phosporus 38ppm [25ppm], Potassium 180ppm [180ppm], Calcium 500ppm [900ppm], magnesium 50ppm [50ppm]. How likely is it that calcium deficiency is the reason the grass is yellow? Thanks. |
Follow-Up Postings:
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- Posted by dchall_san_antonio 8 San Antonio (My Page) on Sun, Aug 12, 12 at 11:39
| Excess calcium can cause yellowing due to iron binding with the calcium instead of being available to the plants. I've not heard of a lack of calcium causing it. |
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| The suggestion to use the limestone is your guarantee that the soil has a specific high acidity and should be brought up to a more neutral range. Lime application, because it takes time to act on the soil, is often specifically recommended to be applied at half rate...every 6 months so that the soil doesn't change drastically and cause damage to the other side of the pH. Adding organic matter every spring and fall can improve the water retention of the soil, then an overseeding at the same times, can improve the quality of the turf. |
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- Posted by Ibanez540r none (My Page) on Sun, Aug 12, 12 at 18:01
| Goren - #5 Oh my!!! http://forums2.gardenweb.com/forums/load/lawns/msg0814111613542.html?1 6 http://forums2.gardenweb.com/forums/load/lawns/msg081452209435.html?4 http://forums2.gardenweb.com/forums/load/lawns/msg0812153718882.html?4 http://forums2.gardenweb.com/forums/load/lawns/msg0814415431178.html?3 Obviously your cure-all is for everyone's situation! No, no, no, and no. Please stop before someone actually does this, wastes their time & money, and ruins there lawn. |
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