贵州芭蕉芋产区土壤肥力评价

Evaluation on Soil Fertility of Canna edulis Planting Area in Guizhou

为芭蕉芋种植科学施肥提供理论依据，对贵州芭蕉芋产区土壤样品进行了分析。结果表明：贵州芭蕉芋产区土壤以黄壤为主，紫色土、稻田土和石灰土占有一定比例；土壤pH值在5．05～6．92；全氮和有效氮含量较丰富，有机质含量中等，中度缺磷，极度缺钾，但磷钾含量变异较大。芭蕉芋是块茎作物，根据其需肥规律，在贵州芭蕉芋主产区，芭蕉芋施肥应控氮增磷补钾，增施有机肥。

The soil samples of planting Canna edulis areas were analyzed to provide the theoretical basis for scientific application in Canna edulis cultivation in Guizhou. The results showed that the main soil type is yellow soil and other soil types are purple soil, paddy field soil and lime soil, the soil pH is between 5.05 and 6.29, and the soil with middle phosphorus deficiency and intense potassium deficiency has higher total nitrogen and available nitrogen content and middle organic matter content but the phosphorus and potassium content varies with different soil types. The application measure should be including controlling nitrogen, raising phosphorus and potassium according to its fertilizer requirement regulation in main Canna edulis . cultivation areas of Guizhou.