The result shown that potassium permanganate, calcareousness lime and compost were plant protect material for control Plasmodiophora brassica, The result were affected by different applying period and applying method.

• 实验结果表明，有机肥、石灰、石灰水、高锰酸钾可以作爲控制根肿病防治的物质，随著使用时间和使用方式的不同，对根肿病和蔬菜的産量的影响不同。