POLYMERS USEFUL IN AGRICULTURAL APPLICATIONS

摘要

Methods of coating seeds with polymers and seeds coated with such polymers are disclosed herein. The polymers can be phosphonates, sulfonates, polymers of ethylenically unsaturated carboxylic acids, polyaminopolyethermethylene phosphonate, polysuccinic oligomers, acrylic acid/2-acrylamido-2-methylpropane sulfonic acid, blends of acrylic acid/2-acrylamido-2-methylpropane sulfonic acid with polyaminopolyethermethylene phosphonate, sulfomethylated acrylic acid/acrylamide, blends of sulfomethylated acrylic acid/acrylamide with polyaminopolyethermethylene phosphonate, polymaleic acid, acrylic acid/acrylamide copolymers, polyacrylic acid, trimethylglycine hydrochloride, blends of polyaminopolyethermethylene phosphonate with trimethylglycine hydrochloride, and any combination or salt of such polymers. Methods of monitoring, determining, and controlling the concentration of scale inhibitors in an agricultural irrigation system are also disclosed herein.

主权项

1. A method of monitoring, determining, and controlling the concentration of scale inhibitors in an agricultural irrigation system comprising:
providing an irrigation pipeline having a first end, a second end, and a side stream pipe near the second end; providing a water pump in communication with a water source, said water source and water pump being in fluid communication with the first end of the irrigation pipeline; providing a scale inhibitor pump in communication with a scale inhibitor storage device, said scale inhibitor pump being in fluid communication with an injection site near the first end of the irrigation pipeline, wherein said scale inhibitor storage device comprises one or more scale inhibitor compositions, further wherein a fluorescent tag is copolymerized onto a backbone of the one or more scale inhibitor compositions; providing a fluorometer that is operably connected to and in communication with the side stream pipe of the irrigation pipeline, wherein the fluorometer comprises a controller; preprogramming an optimal fluorescent signal value into the controller; pumping water into the first end of the irrigation pipeline; pumping a known amount of the one or more scale inhibitor compositions into the injection site of the irrigation pipeline whereby the one or more scale inhibitor compositions combine with the water to form a mixture; allowing the mixture to flow through the pipeline whereby a majority of the mixture exits the second end of the pipeline and a portion of the mixture is routed through the side stream pipe and the fluorometer; and measuring the fluorescent signal of the portion of the mixture.