茯苓栽培场土壤生态变化的初步研究

目的]探明茯苓栽培场不能连续使用的原因。方法]对岳西县里仁村茯苓栽培场栽培前和栽培结束约5个月后的土壤pH值、有机质、速效氮、速效磷和速效钾含量及大型土壤动物种类和数量变化进行初步的生态调查。结果]结果表明,对于茯苓栽培场不能连续使用的原因,有机质、速效氮、速效磷和速效钾的变化可以排除;pH值有明显下降,推测是重要因素之一;蜚蠊目昆虫数量有明显增加,其因果关系尚需进一步研究。结论]该研究为茯苓栽培场的合理使用提供依据。

Preliminary Study on the Ecological Changes in the Soil of Tuckahoe Cultivation Field

Objective]The purpose was to detect the causes and solutions why and how tuckahoe cultivation field cann't be used successively.Method]The research was carried out into the ecological changs in the soil such as organic matter,pH value,available N,available P,available K,and the species and number of soil macro-invertebrate before cultivation and about 5 months after cultivation in Liren Village of Yuexi County.Result]The results showed that for the causes why tuckahoe cultivation field cann't be used successively,the change of organic matter,available N,available P,available K in the soil could almost be excluded,the decrease of pH value was likely one.The number of Blattodea increased in evidence,but the further study must be required to elucidate the causality.Conclusion]This research will provide reference for reasonable use of tuckahoe cultivation field.