There is provided a nitrogen fertilizer granule in which the nitrogen release can be timed and the nitrogen release rate can be controlled according to the needs of the plants to be fertilized. The smart release nitrogen-containing fertilizer granule comprises a nitrogen-containing fertilizer core; an organic functional layer covering the core, wherein the organic functional layer comprises at least one functional organic compound that is an enzyme inhibitor, a microbial suppressor, a phosphorus solubilizer, and/or a plant hormone; a controlled release layer covering the organic functional 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.

There is provided a nitrogen fertilizer granule in which the nitrogen release can be timed and the nitrogen release rate can be controlled according to the needs of the plants to be fertilized. The smart release nitrogen-containing fertilizer granule comprises a nitrogen-containing fertilizer core; an organic functional layer covering the core, wherein the organic functional layer comprises at least one functional organic compound that is an enzyme inhibitor, a microbial suppressor, a phosphorus solubilizer, and/or a plant hormone; a controlled release layer covering the organic functional 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.

A fertilizer granule containing a core containing a nitrogen containing fertilizer such as urea and a coat on the core, the coat containing an organic zinc (Zn) complex and an inorganic Zn compound, and methods of making and using the fertilizer granule.

A fertilizer granule containing a core containing a nitrogen containing fertilizer such as urea and a coat on the core, the coat containing an organic zinc (Zn) complex and an inorganic Zn compound, and methods of making and using the fertilizer granule.

A use of 1,9-decanediol in inhibiting ammonia volatilization from soil is provided. It is found that 1,9-decanediol has dual regulation effects, not only significantly inhibiting ammonia volatilization from soil, but also effectively inhibiting nitrification process, which plays synergistic effects. As a fat-soluble substance, 1,9-decanediol has high stability in soil and is not easy to be separated from nitrogen fertilizer. 1,9-decanediol, as a plant root exudate, also has advantages of being green, safe, and pollution-free, which provides a new method and an idea to expand an application field of 1,9-decanediol and improve an industrial application value of 1,9-decanediol.

A use of 1,9-decanediol in inhibiting ammonia volatilization from soil is provided. It is found that 1,9-decanediol has dual regulation effects, not only significantly inhibiting ammonia volatilization from soil, but also effectively inhibiting nitrification process, which plays synergistic effects. As a fat-soluble substance, 1,9-decanediol has high stability in soil and is not easy to be separated from nitrogen fertilizer. 1,9-decanediol, as a plant root exudate, also has advantages of being green, safe, and pollution-free, which provides a new method and an idea to expand an application field of 1,9-decanediol and improve an industrial application value of 1,9-decanediol.

A use of 1,9-decanediol in retarding urea hydrolysis in soil is provided. It is found that 1,9-decanediol has a dual regulatory effect, which can not only inhibit the nitrification process, but also retard urea hydrolysis and reduce the transformation of urea to other nitrogen forms. As a fat-soluble root exudate, 1,9-decanediol has high stability in soil, is not easy to be leached away, and causes less environmental pollution. It further broadens an application field of 1,9-decanediol and improves an industrial value of 1,9-decanediol.

A use of 1,9-decanediol in retarding urea hydrolysis in soil is provided. It is found that 1,9-decanediol has a dual regulatory effect, which can not only inhibit the nitrification process, but also retard urea hydrolysis and reduce the transformation of urea to other nitrogen forms. As a fat-soluble root exudate, 1,9-decanediol has high stability in soil, is not easy to be leached away, and causes less environmental pollution. It further broadens an application field of 1,9-decanediol and improves an industrial value of 1,9-decanediol.

A use of 1,9-decanediol in retarding urea hydrolysis in soil is provided. It is found that 1,9-decanediol has a dual regulatory effect, which can not only inhibit the nitrification process, but also retard urea hydrolysis and reduce the transformation of urea to other nitrogen forms. As a fat-soluble root exudate, 1,9-decanediol has high stability in soil, is not easy to be leached away, and causes less environmental pollution. It further broadens an application field of 1,9-decanediol and improves an industrial value of 1,9-decanediol.

Animal waste contains most of the essential nutrients required for plant growth. However, animal waste also contains microbes that convert urea to ammonium ions, nitrification of the ammonium ions to NO2 and NO3 and denitrification of NO.sub.2 or NO.sub.3 to N.sub.2. N.sub.2O is produced as an intermediate of nitrification and denitrification processes and N.sub.2O is a 300 times more potent greenhouse gas than CO.sub.2. The instant invention discloses low-cost, fluid suspension compositions comprising a combination of urease, nitrification and denitrification inhibitors that decrease the loss of nitrogen from animal waste and lessen the biological formation of the greenhouse gas N.sub.2O. These compositions comprise nitrogenous phosphoryl compounds and nitrification inhibitors that utilize manufacturing processes for the formation of low cost, fluid suspensions comprising one or more inhibitor particles selected from the group consisting of urease inhibitor particles, b) nitrification inhibitor particles, and c) fused particles.