怀山药生长土壤的研究

Studies on the Soils for Dioscorea opposita Thunb

采用野外调查与室内分析相结合的方法。研究了怀山药生长土壤的分布概况、类型、物理性质、化学性质等。不同土种,不同的理化特性,怀山药品质不同。砂壤土、小两合土、淤土、褐土化两合土4个土种中,以褐土化两合最适宜怀山药的生长,其在质地、土壤结构、砂粘比例、土壤耕性、养分状况等方面均为理想,所产怀山药产量高,品质佳。

Field investigation and laboratory analysis were made on different aspects of the soils for growth of dioscorea opposita thunb, suth as distribution, types, physical and chemical properties, etc. Different soil type and different physical and chemical properties caused different quality of diaoscorea opposita thunb. Cinnamonazation mixed soil is the most fitting soil species, among sand loam soil ,small mixed soil, miry soil and cinnamonazation mixed soil for the growth of dioscorea opposita thunb, which is perfect in the aspects of soil texture ,soil structure, sand-clay proportion, soil tilth and soil nutrition, so the output and quality of dioscorea opposita thunb,is best.