The present invention relates to mixtures comprising a solid carrier comprising an urease inhibitor and a further solid carrier comprising a nitrification inhibitor such as 3,4-dimethyl pyrazole phosphate (DMPP) or 2-(3,4-dimethyl-1H-pyrazol-1-yl) succinic acid (DMPSA), to a method for improving the nitrification-inhibiting effect, or for increasing the health of a plant using mixtures of at least one compound I and at least one compound II; to the use of mixtures comprising compounds I and compounds II for increasing the health of a plant.

The present invention relates to mixtures comprising a solid carrier comprising an urease inhibitor and a further solid carrier comprising a nitrification inhibitor such as 3,4-dimethyl pyrazole phosphate (DMPP) or 2-(3,4-dimethyl-1H-pyrazol-1-yl) succinic acid (DMPSA), to a method for improving the nitrification-inhibiting effect, or for increasing the health of a plant using mixtures of at least one compound I and at least one compound II; to the use of mixtures comprising compounds I and compounds II for increasing the health of a plant.

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.

A plant growth enhancer including a source of carbon dioxide, a source of carbohydrate, and source of acid in an amount to provide increased retention of carbon dioxide in the soil.

A plant growth enhancer including a source of carbon dioxide, a source of carbohydrate, and source of acid in an amount to provide increased retention of carbon dioxide in the soil.

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.

A composition, such as a liquid seed coating composition, comprises at least one macro nutrient and at least one microbe, which macro nutrient includes nitrogen in the form of a basic L-amino acid in association with phosphorus. The composition allows for an enhanced environment for planted seeds, e.g. by providing nitrogen in a form which is available for extended periods of time. Further, as compared to prior art products, the nitrogen is provided in a form which has been shown to be more beneficial to microbes present in soil surrounding the plant in terms of toxicity. The composition is advantageously a liquid slow release seed coating composition. Further, the invention includes a seed treated to extend the duration of the nitrogen effect without lethal effects to surrounding microbes, and a method of treating a seed to achieve the same objective.

A composition, such as a liquid seed coating composition, comprises at least one macro nutrient and at least one microbe, which macro nutrient includes nitrogen in the form of a basic L-amino acid in association with phosphorus. The composition allows for an enhanced environment for planted seeds, e.g. by providing nitrogen in a form which is available for extended periods of time. Further, as compared to prior art products, the nitrogen is provided in a form which has been shown to be more beneficial to microbes present in soil surrounding the plant in terms of toxicity. The composition is advantageously a liquid slow release seed coating composition. Further, the invention includes a seed treated to extend the duration of the nitrogen effect without lethal effects to surrounding microbes, and a method of treating a seed to achieve the same objective.

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.