NACHURS 6-24-6 is 80% orthophosphate. NACHURS 9-18-9 and 3-18-18 are 100% orthophosphate. This means phosphorus is immediately available during critical growing stages. The Fertilizer Institute and independent researchers have found that fertilizers like 7-21-7 and 10-34-0 are up to 70% polyphosphate, which means phosphorous is only 20-30% available to the crop during critical growing stages. Under cool, dry conditions it can take an extended period of time, even weeks, for the polyphosphate to convert to orthophosphate.
“In the soil, polyphosphate converts to orthophosphate by hydrolysis (adding on water). The time required for hydrolysis to occur varies with soil conditions. In come cases, 50% of the polyphosphate hydrolizes to orthophosphate within two weeks. Under cool, dry conditions, hydrolysis may take longer.”
“Some claims have been that polyphosphates will make certain unavailable micronutrients in the soil more available for plant uptake.” ...“it is not likely that such complexes would be available for any significant length of time. Research at Michigan State University and Kansas State University has shown that micronutrient uptake is not enhanced by polyphosphate materials.”
“Phosphorus enters the plant through root hairs, root tips and the outermost layers of root cells. It is usually taken up as the primary orthophosphate ion (H2PO-4), but can also be absorbed as the secondary orthophosphate (HPO=4).”
-- Potash & Phosphate Institute (PPI). Phosphorus for Agriculture. 1998.
Farmers and fertilizer dealers unfamiliar with NACHURS fertilizers sometimes have difficulty comparing our program to the conventional 7-21-7 and 10-34-0 liquid fertilizer programs. NACHURS fertilizers are manufactured with the highest quality raw materials and was specifically formulated for seed placement and foliar feeding. 7-21-7 and 10-34-0 are not recommended for on-the-seed placement and foliar feeding due to their high salt index or chemical structures. Comparing 7-21-7 and 10-34-0 to NACHURS liquid fertilizers is similar to comparing apples to eggs.
Purdue University research has shown that seed placed phosphorus is at least 4 times more efficient that phosphorus placed 2” x 2”. Seed placed phosphorus is 40 times more efficient than broadcast phosphorus. The Fertilizer Institute and independent researchers have found that fertilizers like 7-21-7 and 10-34-0 are up to 70% polyphosphate, which means its phosphorus is only 20-30% available to the crop during critical growing stages. NACHURS liquid fertilizers are 80-100% orthophosphate, which means they are immediately available during critical growing stages. NACHURS seed placed phosphorus requires lower application rates, less storage, higher yields, better plant quality, and is non-corrosive on equipment. What does this mean to you—MORE PROFITABILITY!
Plants predominately absorb Phosophorus in the orthophosphate form: H2PO-4.
-- Rendig & Taylor, Mc Graw Hill Publishing. Principles of Soil-Plant Interrelationships.
-- Troch & Thompson. College of Agriculture Iowa State University. Soils and Soil Fertility. Oxford University Press, 5th Edition. 1993.
