Abstract: In order to studied the effects of different nitrogen application on yield and quality of cucumber and provide the theoretical basis for reasonable fertilization of cucumber in greenhouse,there are five nitrogen fertilizer pretreatment treatment,CK,60%CF,80%CF,CF,120%CF,to determine the effect of different treatments on cucumber yield,quality,fruit morphology.The result shows that,on the basis of conventional fertilization,appropriate reduction of nitrogen fertilizer can improve the yield and quality of cucumber,application of nitrogen can increase the yield of cucumber compared with CK,80%CF treatment of which the highest yield,was 122 366 kg/ha. But with the increasing in fertilizer,yield showed a downward trend;The content of soluble sugar,Vc and soluble solids in cucumber fruits increased first and then decreased with the increasing of nitrogen application rate,80%CF treatment was highest;With the increasing of nitrogen uptake,the nitrogen content of cucumber fruits and plants increased compared with CK,80%CF was most significant (P < 0.05).But the 120%CF treatment nitrogen content was lower than that of CF;There was no significant difference in P and K contents between treatments(P > 0.05).Considering the yield and quality,the recommended use of nitrogen was 393.96 kg/ha under the condition of soil organic nitrogen content of 139.30 mg/kg.

Key words: Amount of nitrogen applied, Cucumber, Yield, Quality

CLC Number: 

• S143.1

• S642.01