341-5 The Humate Acceptance Cycle or Why Humates Don't Always Work.
See more from this Division: Special Sessions
See more from this Session: Special Session Symposium--Humic Products: Uses in Crop Production and Soil Improvement
Wednesday, October 25, 2017: 9:25 AM
Marriott Tampa Waterside, Grand Ballroom B
Abstract:
Problems observed that reduced acceptance of Humates. Based on 40 years of working with humates. The difficulties handling and applying due to dusty or wet product. Insoluble with high rates needed and the difficulty of mixing with fertilizers. Published research results did not always support consistent and reliable results. Inexplicable failure of some humate products and deposits to perform. Lack of a reliable test method that defined the biologically active humic fraction and providing a guaranteed analysis. The science of molecular genetics and instrumentation to define the composition of the humic factions in terms of bioactive compounds was not yet introduced. We did not know how it worked or why some failed to work. The solutions that make the use of Humic Substances practical and consistent; Worldwide research with humic substances provided answers .The ability to provide a soluble granular product that can be mixed with dry commercial or organic fertilizers at a reasonable cost and application rate. Testing Humates based on NMR functional group analysis and biological activity scoring combined with plant based bioassays. New test method has been introduced by HPTA and IHSS. Has been accepted by AAPFCO “Hydrophobic Fulvic Acid” can be registered in Oregon. Extracting the most bioactive fulvic fraction for use in water or foliar applications, only the LMW fulvic fraction is utilized by cells. Developing a yield curve to determine the optimum use rates, response curve, determining what levels produce maximum and minimum results. What levels show negative results correlated with defined test method. Understanding the effect aromatic/phenolic compounds on gene expression, activation of specific genes responsible for enhanced growth and stress resistance. Understanding that humic and fulvic acid are fractions of humus not defined compounds but contain hundreds of organic carbon compounds with specific effects on cellular/plant/animal response.
See more from this Division: Special Sessions
See more from this Session: Special Session Symposium--Humic Products: Uses in Crop Production and Soil Improvement