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All of Lebanon Turf's Emerald True Foliar products are designed to produce excellent surface conditions - color, consistency, controlled growth, and turf quality - while also providing seaplant extract and other beneficial supplements for root growth, stress tolerance, and disease resistance.
True Foliar NPK (10-3-16) has been improved significantly. In addition to a general increase in the content of all macronutrients, this product now contains a phosphite source, derived from phosphorous acid. True Foliar NPK Phosphite has the most balanced analysis of commercially available phosphorous products, and like all Emerald Isle True Foliars, True Foliar NPK Phosphite contains a minimum of 10% of our proprietary seaplant extract, and it is the only phosphite product available that contains seaplant extract. Finally, we have added fulvic acid to this product to enhance the biostimulant properties of the seaplant extract.
Research in which we have participated has indicated the value of phosphites (also known as phosphanates) in contributing to disease resistance, then breaking down into elemental phosphorous and becoming plant available as a nutrient. This new product allows for targeted foliar applications of phosphorous in forms that are held in the plant rather than leaching, with the added benefits of the other elements and the phosphites.
Phosphorous is a mobile nutrient in the plant, and is a key factor in moving carbohydrates through the plant, particularly to the root system. Phosphorous supports all phases of plant growth from establishment to maturity to subsequent seed development. It is also involved in most of the plant metabolic functions. Elemental phosphorous will leach from the plant leaves if not readily consumed. Phosphorous applications are not needed as frequently as nitrogen since the element is more available to the roots. It is immobile in the soil and does not tend to leach. Regular soil tests can indicate plant needs for phosphorous applications.
Bentgrasses tend to have deficiencies during summer stresses when roots are shallow and weak. Because cool season grasses respond more positively to phosphorous fertility applications than do warm season grasses, this is particularly valuable when overseeding over bermudagrasses. At low soil pH (<5) or high pH (>7.5), soil applied Phosphorous is typically unavailable to the plant, making the need for True Foliar applications even more critical.
