Interpolymers useful for enhancing the efficacy of nutrients in soil and fertilizers; and methods of inhibiting the precipitation of, and/or dispersing, inorganic elements.

An agricultural spray may be produced by admixing citric acid and glutamic acid with a metal salt and a pesticide or other agricultural chemical containing components capable of precipitating with the metal salt in the admixture. The citric acid and the glutamic acid chelate with the metal salt to provide a stability and compatibility-enhancing composition, thereby preventing the metal salt from forming an insoluble solid within the admixture. Such a composition may be produced by admixing citric acid and glutamic acid at a molar ratio of about 6.8:0.5 to about 1:0.29. The composition may include a metal sat, citric acid and glutamic acid in a molar ratio of about 1:6.8:0.5 to about 1:1:0.29 and a pesticide.

Smart fertilizers and method of using and manufacturing are provided that include nanocarbon solution mixed with nanocomposite hydrogels at predetermined percentage weight or volume ratio (% w/w or % v/v). The resulted smart fertilizers are characterized in biosensors for detecting electricity conductance (EC) and/or pH degree of the surrounding soil caused by the release of ATPase H.sup.+ from the plant roots and in bioactuators for chemically reacting with the surrounding hydron ions to release the nutrients once the biodetectors detect the stimuli conditions.

The invention provides compositions and systems comprising a carrier and an element. The carrier is a network of polymers insoluble in water comprising phenolic hydroxyl moieties, aliphatic hydroxyl moieties or a combination thereof. An association between the carrier and the element is labile in response to biological demand and the lability of the association in the presence of water is less than the lability of the association in response to biological demand. Also provided are methods of making such compositions and methods for delivering the element to an organism.

The present disclosure describes compositions comprising a sulfopolymer and one or more active agents and the use of the compositions on plants. The compositions described herein exhibit reduced drift as compared to the same composition without the sulfopolymer or to a control formulation.

The present disclosure describes a stable composition including a sulfopolymer, and a high loading of one or more active agents and the use of the composition on plants. The sulfopolymer in the composition enables the high loading of the one or more active agents into the composition.

There is provided a smart release potash fertilizer granule comprising a potash core; an extended release layer covering the potash core, wherein the extended release layer comprises water-swellable copolymeric nanoparticles and at least one water-soluble organic acid or water-soluble organic carboxylate salt; a controlled release layer covering the extended release layer, wherein the controlled release layer comprises water-swellable copolymeric nanoparticles; and an anticaking layer covering the controlled release layer, wherein the anticaking layer comprises water-insoluble copolymeric nanoparticles.

The present disclosure describes a composition including a sulfopolymer, and one or more agrochemicals. The composition exhibits improved sticker characteristic as compared to the same composition without the sulfopolymer. The present disclosure also describes methods of making and using such formulations in agriculture.

The present disclosure describes a composition including a sulfopolymer, and one or more agrochemicals. The composition exhibits improved dispersal and/or re-dispersal characteristics as compared to the same composition without the sulfopolymer. The present disclosure also describes methods of making and using such formulations in agriculture.

The present disclosure describes agrochemical formulations that include optionally a rosin, one or more agrochemical active ingredient(s), and a sulfopolymer, such as a sulfopolyester. The present disclosure also describes methods of making and using such formulations in agriculture.