The development and outlook of stabilized fertilizers

Stabilized fertilizers refer to fertilizers added with urease or/and nitrification inhibitors during manufacture. Stabilized fertilizers have showed good agronomic and environmental effects, and their application is one of the methods for cost saving and effectiveness increasing in agriculture. Scientific researches and application of the stabilized fertilizers exhibit rapid progress in recent years. We summarized relative works and proposed some research directions in the future. The key point of stabilized fertilizers is urease and nitrification inhibitors. The research and development of urease and nitrification inhibitors, as well as their effecting paths, were reviewed firstly. Then the type, manufacturing technique, productivity capacity, and the popularization and application were summarized. The crop yields and environmental effects for the application of stabilized fertilizers were discussed at last. For the sustainable development of stabilized fertilizers industry, the research and development of environmental friendly inhibitors should be paid more attention. At the same time, the technologies for inhibitors protection should be reinforced to keep their function lasing longer and stable. Furthermore, researches on the effect mechanism and methods of compatible use of different types of inhibitors, the combined use of inhibitors with synergists is necessary. Specified fertilizers for different districts, crops should also be developed in the future.