Soilless culture is a widely used advanced technology in protected agriculture

it can overcome continuous cropping obstacles and have the advantages of economizing water

fertilizers and time compared to soil cultivation

the development prospects of soilless cultivation technology will be more brighter for applying controlled-release fertilizer in medium culture.The paper was concerned with the experiment in medium

in order to illustrate the nutrient release rate of controlled-release fertilizers in medium and effects on basic properties of medium.The results indicated that the nutrient release disciplinarian

nitrogen

phosphorus

potassium

iron and zinc of controlled-release fertilizers is basically conform

the nutrient was released slowly and the nutrients losings can be reduced.The controlled-release fertilizers(CRFs) could be safer than common fertilizers as the salinity contents of controlled-release fertilizers lower compared to common fertilizers.The bulk density and total interspaces of medium of CRFs was distinctly changed

appropriate environment was afforded to crops.