jumpincactus
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The title is pretty clear, I have been doing extensive research on the beloved mycorrhizae in living soil and have found some data that would support that it is important in the planting of seedlings and the use of mycorrhizae inoculations to keep phosphorus levels low during early vegetative periods of plants.
Early veg is the time you want to have great conditions so the mycelium and hyphae have a chance to establish a strong network for better nutrient uptake from the rhizosphere. There have been studies that show that higher levels of phosphorus early in the inoculation period is actually detrimental to the delicate network we are trying to create.
There are also further studies and data that would support that we as farmers may also be adding more phosphorus than our plants really need. Hre is a quote from 1 site I found .
"According to the University of South Florida IFAS Extension, phosphorus will accumulate to toxic levels when applied as often as nitrogen and potassium. Many other extension agencies concur and suggest alternating fertilizer applications between one with no phosphorus and one with low levels of NPK in either equal amounts or at a
3-1-2 ratio. Phosphorus buildup is caused by heavy use of inorganic fertilizers or the use of composts or manures that are heavy in this element. If soil test indicates that your soil has too much phosphorus, you may have to monitor anything you use for its phosphorus levels.
So, it’s time to throw out the bloom boosting fertilizers with their high phosphorus levels. Any synthetic fertilizer with a high middle number (P) is going to overload your soil with phosphorus. As summer progresses and the leaves of your plants bushes turn yellow, you may be tempted to add something to the soil, such as iron or magnesium (Su-Po-Mag). By doing this, without testing your soil, you may end up worsening the problem."
"Phosphorus Fertility Phosphorus fertilizer can inhibit mycorrhizal colonization and growth. The benefits of AMF are greatest in systems where soil test P is low. As plant available soil phosphorus levels increases the plant tissue phosphorous increases and the plant carbon investment in mycorrhizae is not economically beneficial to the plant (Grant 2005). Encouragement of mycorrhizal symbiosis may increase early uptake of phosphorus, improving crop yield potential without starter P-fertilizer applications (Grant et al., 2005). "
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.419.4796&rep=rep1&type=pdf
https://www.certifiedcropadviser.or...tified/education/self-study/exam-pdfs/197.pdf
These links are but a few that support the claim to lower P levels increase colonization.
Early veg is the time you want to have great conditions so the mycelium and hyphae have a chance to establish a strong network for better nutrient uptake from the rhizosphere. There have been studies that show that higher levels of phosphorus early in the inoculation period is actually detrimental to the delicate network we are trying to create.
There are also further studies and data that would support that we as farmers may also be adding more phosphorus than our plants really need. Hre is a quote from 1 site I found .
"According to the University of South Florida IFAS Extension, phosphorus will accumulate to toxic levels when applied as often as nitrogen and potassium. Many other extension agencies concur and suggest alternating fertilizer applications between one with no phosphorus and one with low levels of NPK in either equal amounts or at a
3-1-2 ratio. Phosphorus buildup is caused by heavy use of inorganic fertilizers or the use of composts or manures that are heavy in this element. If soil test indicates that your soil has too much phosphorus, you may have to monitor anything you use for its phosphorus levels.
So, it’s time to throw out the bloom boosting fertilizers with their high phosphorus levels. Any synthetic fertilizer with a high middle number (P) is going to overload your soil with phosphorus. As summer progresses and the leaves of your plants bushes turn yellow, you may be tempted to add something to the soil, such as iron or magnesium (Su-Po-Mag). By doing this, without testing your soil, you may end up worsening the problem."
"Phosphorus Fertility Phosphorus fertilizer can inhibit mycorrhizal colonization and growth. The benefits of AMF are greatest in systems where soil test P is low. As plant available soil phosphorus levels increases the plant tissue phosphorous increases and the plant carbon investment in mycorrhizae is not economically beneficial to the plant (Grant 2005). Encouragement of mycorrhizal symbiosis may increase early uptake of phosphorus, improving crop yield potential without starter P-fertilizer applications (Grant et al., 2005). "
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.419.4796&rep=rep1&type=pdf
https://www.certifiedcropadviser.or...tified/education/self-study/exam-pdfs/197.pdf
These links are but a few that support the claim to lower P levels increase colonization.
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