|
|
|
| Studies on Different Cultivation Systems on Soil Long Term Repair Effect of Continuous Cucumber Cropping in Solar Greenhouse |
| WANG Xu-hui1，ZHANG Xue-yan1，2，WU Yan-fei1，GAO Li-hong1 |
| 1College of Agronomy and Biotechnology，China Agricultural University，Beijing 100193，China|2Agronomy College，Ningxia University，Yinchuan 750021，Ningxia，China |
|
|
|
|
Abstract We utilized pot culture for 7 successive years to evaluate the repairing effect on continuous cucumber（Cucumis sativus L.）cropping soil by different cultivation systems．In the first 4 years，summer catch garlic and crop rotation（tomato—pakchoi—cucumber）could continuously improve the soil quality．All treatments could solve the problem of soil secondary salinization by different degree and increase the fall and winter cucumber yield．But since the 5th year，the soil EC and pH values，contents of nitrogen，available N，K and P，Fusarium oxysporum population had begun to increase slowly and the fall winter cucumber yields by all treatments were lower than the CK．All in all，under the condition of this experiment，up to the 4th year，the repairing effects of different cultivation systems were stable，but they began to be puny since the 5th year．
|
|
Received: 03 August 2011
Published: 10 October 2010
|
|
|
|
|
|
|
|
|
