摘要： 为研究不同追氮量处理对日光温室黄瓜产量和品质的影响，设5个氮肥追肥处理，不施、常规追氮的60%、常规追氮的80%、常规追氮、常规追氮的120%，测定不同处理对黄瓜的产量、品质、果实形态的影响，为日光温室黄瓜合理施肥提供理论依据。结果表明，在常规施肥的基础上适当减施氮肥可提高黄瓜产量和品质，与CK相比，增施氮肥可使黄瓜产量增加，但随着施肥量的增加，产量呈下降的趋势，其中80% CF处理产量最高，为122 366 kg/hm²；黄瓜果实可溶性糖、Vc和可溶性固形物含量随氮肥用量的增加呈先升高后降低的趋势，且施氮量为常规施氮量的80%时含量最高；与CK相比，随追氮量的增加黄瓜果实和植株中氮素含量都有所增加，以80% CF最为显著（P < 0.05），但120% CF处理氮素含量较CF低；各处理间磷、钾含量差异不显著（P > 0.05）。综合考虑产量品质等，在温室土壤有机氮含量139.30 mg/kg条件下，推荐使用施氮量为393.96 kg/hm²。

关键词: 施氮量, 黄瓜, 产量, 品质

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

中图分类号: 

• S143.1

• S642.01