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Old April 23, 2011   #11
amideutch
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Is this "P" sensitivity simply because the plant has no biological reason to form this symbiotic relationship in conditions where nutrients are adequate?
That is one of the reasons. Depending on the amount of "P" in the soil it can keep the symbiotic relationship from happening. They have found the use of mycorrhiza/bacteria in hydroponic systems has increased plant vigor and production. By controlling the "P" of the nutrient solution and allowing symbiosis to occur the nutrient intake of the plants increases even though the ferts used in the nutrient solution are inorganic/ionic.

More and more were finding that Arbuscular mycorrhizal fungi are not the only players in the rhizosphere where plant roots are growing. You have PGPR (Plant-Growth-Promoting-Rhizobacteria) that act as biofertilizers and biopesticdes. You are seeing them added to Myco products such as MycoGrow Soluable or as stand alone products like Biota Max. They have also found that these Myco/bacteria teams work together whether it be providing nutrients for the plant or fighting the bad guys that reside in the soil one example being Tricoderma and Mycorrhiza.

My reason for my seedling plant dip was to get all these players together and inoculate the plants in one application so they can be doing there thing from the git-go as a biofertilizer or a biopesticide.

A new product on the market that Raybo mentioned is "Great White Mycorrhiza" which is a good example of an all-in-one product that has Mycorrhiza,PGPR and Tricoderma plus vitamins. Feedback on this product has been very favorable. Right now it's running around $30.00 for 4oz. Here's a discription of the product.

Quote:
Great White is the most advanced mycorrhizal product on the market today. The combination of mycorrhizae, beneficial bacteria, trichoderma, and plant vitamins will give your plants a strong and developed root system. This will enable your plants to break down and absorb nutrients efficiently and effectively. Also it will increase water uptake and the overall absorption area of the root system, resulting in a healthier plant. Can be used in hydroponics as well as soil. May also be injected in to media.
Ami
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