Abstract: The effects of different slow\|release fertilizers with different release durations and ordinary fertilizer treatments on eggplants growth， yield and quality were studied by pot experiment. The results showed that: in condition of the same N，P，K application rates， the plant height， stem diameter showed no obvious difference in slow\|release fertilizer and ordinary fertilizer treatments， total chlorophyll content increased most in the slow\|release fertilizer treatment with 3-4 months release duration. The root vigor of eggplant both in slow\|release fertilizer treatments with 3-4 and 8-9 months release durations were enhanced significantly. Compared with other treatments， the content of Vc， soluble sugar and free amino acids were increased in the slow\|release fertilizer treatment with 3-4 months release duration. Additionally， the nitrate content of eggplant was significantly reduced in the slow\|release fertilizer treatment with release durations of 8-9 months， and the lowest content was 1963 mg·kg-1. The eggplants yield per plant and single fruit weight were the highest in slow\|release fertilizer treatment with release durations of 3-4 months.

Key words: slow\, release fertilizers, eggplant, growth, quality, yield