Effects of NaCl Application on Uniformity of Rootball Moisture Content of Cabbage Plug Seedlings

Abstract

In plug seedling production, lack of uniformity of soil moisture can occur among different cells in the same tray. This phenomenon is thought to be caused by differences in air humidity surrounding plants in the center of the tray compared to that surrounding those at the edge of the tray leading to differences in transpiration rates. We used NaCl subirrigation treatment to reduce individual differences in transpiration rate, and thus improved the uniformity of soil moisture in each tray.