CHANGES IN SOIL CHEMICAL CHARACTERS AND ENZYME ACTIVITIES DURING CONTINUOUS MONOCROPPING OF CUCUMBER (CUCUMIS SATIVUS)

Soil sickness, a phenomenon of negative plant-soil feedback in continuous monocropping systems, can cause severe yield penalty in agricultural production. Changes in soil chemical and biological characters are thought to account for soil sickness. However, changes in soil properties in continuous monocropping systems and links between these changes and plant growth performance are still not clear. In this study, dynamics of soil chemical...