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On the other hand,Phosphonates were first investigated as fertilizers in Germany and the U.S. during the
1930s and 40s. At that time, agricultural officials were concerned that war activities
would disrupt vital shipments of rock phosphate for fertilizer production, so alternative
sources of fertilizer phosphorus were explored (6). Results of studies conducted in both
countries demonstrated that phosponates were not effective substitutes for phosphate
fertilizer. USDA scientists found that yields of legumes and grasses treated with calcium
phosphite were lower than phosphate-treated plants, and in most cases, lower than
controls plants receiving no phosphorus. However, a second crop seeded into the same
soils that were treated with calcium phosphite showed improved yields. The authors
attributed the delayed phosphorus response to the conversion of phosphite to
phosphate in the soil (9). Subsequent research revealed that phosphite could be
converted to phosphate primarily by soil-borne bacteria, but that these bacteria would
not use phosphite until most phosphate was depleted (1). Based on the results of these
studies, phosphonate fertilizer was viewed as an inefficient and costly means of
supplying phosphorus to plants and scientists eventually lost interest in this compound
as a phosphorus fertilizer.
Despite previous research findings, phosphonate compounds are marketed by some
companies as a source of phosphorus and potassium fertilizer.
Pure Flowers 0-30-20 liquid was scientifically formulated with cutting edge phosphite technology. Pure Flowers 0-30-20 has the highest nutrient levels ever achieved in a completely solubilized liquid. The unique molecular structure of a phosphite is easily absorbed through the roots and leaves ensuring the crop instantly uptakes potassium and phosphorus. The ultimate flowering supplement will maximize your crops yield and boost the crops immune system.
Hey Higrocorp, Could u please provide a feeding schedule for Pure Flowers?
Thanks!
So which study is accurate? I have also read that Pure Flowers is a "Systemic" type product?
Sounds like some testing may be in order.....
Do you happen to know what the shelf life is for a bottle Pure Flowers?
Thanks!
Thanks Higro! Does the same apply to coco?
Interestingly, we were unable to find any study in the literature identifying positive effects of Phi on flowers and ornamental species, other than controlling diseases (Banko and Hong, 2001, Shearer and Fairman, 2007 and Shearer and Crane, 2012).
.........
All of these products are formulated as alkali salts of phosphorous acid and have been registered either as pesticides, fertilizers, or stimulators of biological processes in plants. However, experimental evidence indicates that Phi's primary role is as a biostimulant and biocide, rather than as a fertilizer.
In spite of that, farmers worldwide apply Phi formulations marketed as fertilizers rather than as pesticides. This is especially profitable for the agrochemical companies selling Phi fertilizer products, as they appear to avoid spending the considerable time and budget associated with registering an agricultural pesticide (i.e., by labeling their Phi products as a P fertilizer).
.......
Recently, the Minor Crop Farmer Alliance in the United States (MCFA, 2014) warned that the European Union (EU) has reclassified phosphite-containing compounds as pesticides only rather than as fertilizers
Thank you. It's not a product I was ever set to try out, but I personally really appreciate it when people endeavor to correct mistakes. Nothin' wrong with a good necropost that does that, either.I know this is an old post, but it is really sad the condescending disinformation that higrocorp tries to push in here.
My first post all of those years ago was perhaps a little misinformed, but was not incorrect in asserting that it is tricky of Pure Flowers to push their product as a nutrient, when for most plants in most situations, it does not act as one.
Yes he dug up some quotes from a trade publication that does reference important exceptions to that rule, with avocado and citrus, where phosphite can apparently serve as a foliar fertilizer. But the fact is I understand now, from the perspective of an agricultural scientist, the reason that Pure Flowers is labeled like that is because it is onerous to register a product as a pesticide.
It is true that it may induce bloom sets etc, but this is all through the SAR pathway, and is unlikely, especially in short lived container plants, to ever provide phosphorous to the plant. I shoulda known that a salesman is a salesman, and perhaps many of you all did, but others were clearly eating out of his hands.
Sources are available if anyone is interested.
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