为研究安吉白茶在枞阳县引种的适应性问题,利用安庆枞阳县多年气候资料和茶园土壤肥力指标,通过与白茶原产地安吉的气候、土壤条件对比,分析了白茶在当地种植的适应性。结果表明,枞阳站光温水、土壤肥力符合白茶在原产地的生长要求,适宜种植白茶。春季白茶生长期,枞阳站稳定通过10℃初日比安吉早,与稳定通过15℃初日时间间隔为24 天,略多于安吉站,可以保证白茶白化期的完成;且稳定通过10、15、20℃都有明显的推前趋势,要求提早安排采摘期;水分方面,3 月降水量较少,需要注意水分变化并及时喷灌,5 月较多,不利于茶园的水土保持,应重点防范洪涝灾害;土壤肥力方面,黄公山茶园土壤有机质、全氮、速效钾和pH都超出或达到白茶种植要求,但缺磷明显,应采取合理播撒CaCO3、混合施肥、保持茶园土壤的湿度等措施。
Study on adaptability of Anji white tea introduced in Zongyang, by comparing Zongyang, Anqing’s climatic data and the soil fertility index for years with those in white tea origin Anji, we analyzed white tea cultivation adaptability in Zongyang Anqing. Results showed that Zongyang County could provide suitable light-warm, water and soil fertility for the white tea cultivation. The comparing obtained revealed that the three indexes mentioned were similar. Firstly, the spring white tea growing temperature through the beginning date of10℃ was earlier than that in Anji, but time interval between 10℃ and 15℃ was 24 d, slightly more than that in
Anji, which guaranteed the white tea whitening. The ascending through 10, 15, 20℃ of Zongyang was clear, leading to early arrangements for picking. Secondly, in March, less precipitation in Zongyang, timely irrigation was required according to moisture change, in May, however, because of intensifying precipitation, much more
attention should be paid to the prevention of flood disaster. The third category was soil fertility. The soil organic matter, total nitrogen, available potassium and pH except phosphorus exceeded white tea planting requirements, suggesting a reasonable spreading CaCO3, mixed fertilization, and other measures are needed to
maintain fertility and humidity in Huanggongshan tea garden of Zongyang.