Abstract：A field experiment was conducted to study the effects of different control measures on cucumber（Cucumis sativus L.）yield，bleeding sap and its nutrient content in greenhouse．The results showed that the root bleeding intensity on day was higher than that in night．And with the prolongation of growing period，the bleeding intensity and amount showed a increasing trend．But under the influence of root growth and external environment，the increased degree became smaller at the later stage．There was many free amino acid in bleeding sap，but the main nitrogen form was nitrate N．Compared with the fertilization model used by peasant，the bleeding amount and the contents of nitrate N，ammonium N，free amino acid and K in the bleeding sap could increase significantly through straw returning．This measure could also increase the root activity and plant absorption of N and K．The yield slightly increased about 1%．For the influence of irrigation frequency，the above indicators of bleeding sap under drip irrigation measure were all decreased significant and the yield decreased 13.1% with significant differences．
徐钰，江丽华，郑福丽，林海涛，宋效宗，谭德水，高新昊，刘兆辉. 调控措施对日光温室黄瓜伤流液及其养分含量的影响[J]. 中国蔬菜, 2012, 1(20): 62-67.
XU Yu，JIANG Li-hua，ZHENG Fu-li，LIN Hai-tao，SONG Xiao-zong，TAN De-shui，GAO Xin-hao，LIU Zhao-hui*. Effects of Different Control Measures on Cucumber Bleeding Sap and Its Nutrient Contents in Greenhouse. , 2012, 1(20): 62-67.
