How Phosphite is defferent from Phosphate ?

Benefits of Proven Foliar containing  Phosphite--

• Promotes increase plant health and metabolic functioning
• 
  
• Stimulates a plants natural defense mechanisms including 
• 
  
• phytoalexin and antioxidant production (3)
• 
  
• Directly limits the growth and development of the 
• 
  
• oomycetes (Pythium spp., Phytoplora, and Plasmopara) 

Plant Defense Responses

Plants naturally defend against biotic and abiotic pests by triggering specific metabolic responses after pathogen infection, or the onset of adverse environmental conditions such as drought, heat, or salinity. Phosphite has been documented to upregulate these vital metabolic processes necessary for maximum plant health.

Benefits of Proven Foliar phosphate fertilizers containing phosphate are:

• Phosphorus nutrition is important for turfgrass abiotic stress tolerance and often unavailable (complexed) in the soil.
• Phosphite stimulates additional plant defense responses
• Phosphite can be used as one component to an integrated pest management program (see back)
• Optimum turfgrass health is maintained with adequate primary and secondary macro and micronutrient nutrition
• Application of phosphate under P deficiency conditions could be detrimental to plants

source ----Grigg Brothers Proven Foliar

one of the wonderfull benifit by using 


phosphite or salt of phosphonic or 


phosphonates are is Increased production of 


natural fungicides (phytoalexins) effectively 


providing organic disease control 

“PHOSPHONATE USE IN ORGANIC AGRICULTURE”--

PHOSPHONATE is listed as PPP in  n Germany and Austria it is listed as plant
strengthener, and used in organic farming with limitation in certain years. It is not allowed for use
in organic in other countries. In USA it is registered in as PPP (31 brand name products) but
forbidden in organic due to its synthetic origin; the same in Australia (with 8 brand name products
registered)  but not allowed in organic


 German perspective
Used in organic: yes 
Legal framework
2 products containing are available on the market:  "Frutogard" and "Alginure BioSchutz"
(indentical material, two different brand name products). They are listed as 'plant strengtheners', a
cathegory provided in the German Plant Protection Law.  There was a case at the court last year:
The relevant plant protection authority had considered the phosphonates as plant protection
agents and not as a strengthener. But the court decided (more or less on formal reasons, not based
on scientific evaluation) that the products must remain on the Plant Strengthener List.
Formally all "Plant Strengtheners" can be used in organic production in Germany, they must not be
listed in App II of 889/2008 (confirmed in the late 90th by the former EU Commissioner Fischler).


Even if phosphonates are used and researched on since more than 20 years their acceptance in the
organic sector is still debated. About its nature, efficacy and need there is consensual evaluation
but concerning the aspect of residues risk and its mode of action some doubts are expressed:
• phosphonate leave residues on fruit (and soil?). They can be handled by application
strategies but thy still can be a risk;
• the analytical methods to detect phosphonate residues and differentiate their origin are
still developing;
• the mode of action is somehow systemic and as such different from all other products so
far used in organic.
So the difficult decision can only partially be supported by scientific data as the balance between it
agronomic needs/efficacy and the risks in the consumers acceptance as well as in the fulfilment of
organic principles should be evaluated.
For coming years there is a clear need to fill in the knowledge gaps in order to be able to approach
its acceptance in the organic system with the needed scientific background and the requested
participatory approach.  

Effects nitrogen and phosphate

Effects

• Too much nitrogen does not harm plants, but too much phosphate causes leaf yellowing known as leaf chlorosis. Manganese and iron uptake is negatively affected by phosphate

phosphorus effect and Application on plants

Phosphate in its phosphorus form is responsible for energy transfer and carbohydrate metabolism. Phosphorus is important for root development and growth, stem growth, flower and fruit production, seed production and maturation. Deficiencies in phosphate often show up as purplish leaves and stems on trees. In fruit production, increased phosphate increases flower then fruit yield. There are products called super- or triple-phosphates. They are useful in increasing industrial crop yield but are dangerous in home production. The amount of phosphate is triple the other numbers, and unless a soil test says the earth is lacking phosphorus, the use of such products actually poisons the soil.



Phosphorus doesn't move through soil easily. The best time to introduce phosphate to a flowering tree is at planting time, when the root is exposed. An organic source of phosphate, such as bone meal, can be worked into the soil in the planting hole and well-watered. This gives instant life to the plant. Phosphate and most fertilizer should be slow release or introduced when the tree is dormant, to avoid burning the roots. Uptake of phosphates occurs at the root tip, so it is important to water fertilizer in well enough so that it leaches down to roots or digs in to the root area.

what is Phytophthora ?

Phytophthora, an organism which is often mistakenly referred 


to as a fungus, although it is actually a protist. 


Protists are a heterogeneous group of living organisms, 


comprising those eukaryotes that are not animals, plants, or 

fungi
. 
In systems ofbiological classification, they usually are treated 


as the Kingdom Protista or Protoctista.


source --http://www.newworldencyclopedia.org/entry/Protist

Benefits of Humic Acid

²  Nutritionally, as a good fertilizer enhancer, sharply increase the utilization efficiency of plant to potassium exists in itself and in soil, as well as to nitrogen, phosphorous and other mineral fertilizers in soil.

²  Physically, as soil conditioner, promote good soil structure formation, increase the capacities of water holding and cation exchange and improve aeration condition. Besides, these benefits will be further helpful for plants to resist drought stress. 

²  Chemically, as chelating and buffering agents, respectively helps retain water soluble inorganic fertilizers, preventing them from leaching, and protect plants from drastic change in PH.

²  Biologically, as food sources, establish a desirable environment for microorganism development.

²  Stimulate seed germination and viability, and root respiration, formation and growth. Thus increase crops yield and quality.