Abstract: The invention provides compositions, systems and methods for controlling loss of nutrients and other substances from planting sites.

Abstract: The invention provides compositions, systems and methods for controlling loss of nutrients and other substances from planting sites.

Abstract: Methods and compositions of retaining nutrients in soil at planting sites is disclosed herein. In some embodiments, the composition includes at least one modified amino acid. The at least one modified amino acid is modified by at least one of protonation, ammonia modification, or guanidine modification. In some embodiments, the composition further includes at least on unmodified amino acid.

Abstract: The invention provides compositions, systems and methods for controlling loss of nutrients and other substances from planting sites.

Abstract: A process is disclosed for inhibiting corrosion of metal surfaces and deposition of particulates in an air preheater system. In the process, a composition (preferably aqueous) comprising a corrosion inhibiting amine and a surfactant having an HLB value of from about 8 to about 20, preferably from about 10 to about 14, is supplied to the combustion gas-in side and/or to the air-in side of the air preheater for protection of the metal surfaces and minimizing such deposits. In a preferred embodiment, the process of the invention can employ an amine salt of a C.sub.12 to C.sub.24 tertiary alkyl amine an amine oxide, or an amine oxide salt, either alone or with a surfactant.

Abstract: A heat exchange system and process for reducing bleed-off are disclosed employing a weak acid cation exchange resin for treating the aqueous liquid coolant. In one such system and process, the aqueous coolant is treated with a weak acid ion exchange resin to remove alkaline salts therefrom without removing salts of strong acids; suspended solids are removed from the circulating aqueous coolant; and an effective amount of additive selected from the group consisting of scale inhibitors, corrosion inhibitors, microbiocides, and mixtures thereof is introduced into the circulating aqueous coolant so that bleed-off from said system is substantially reduced.