农业资源与环境学报2015，Vol.32Issue(5)：436-442,7.DOI:10.13254/j.jare.2015.0020
氮肥对茶园土壤氟赋存形态及转化的影响
Effect of Nitrogen Fertilizer on Combined Forms and Transformation of Fluorine in Tea Garden Soil
摘要
Abstract
In order to investigate the effect of nitrogen fertilizer on combined forms and transformation of fluorine in tea garden soil, soil pot experiment was carried out. The research object was red-yellow soil in Shizipu tea plantation in the south of Anhui Province. Five treatments were N0P0K0(CK), N0P1K1(N0), N1P1K1(N1), N2P1K1(N2), N3P1K1(N3). Water-soluble fluorine content, exchangeable fluorine content, Fe/Mn oxide-bound fluorine content, organic matter-bound fluorine content, ammonium nitrogen content and soil pH value in 0~15 cm soil layer were analyzed in 10, 20, 30, 50, 70, 90 days after fertilization. The results showed that compared with CK, in the short term(10 or 20 days)after applying NPK, the content of water-soluble fluorine in 0~15 cm soil layer was decreased and the content of exchangeable fluorine, Fe/Mn oxide-bound fluorine and organic matter-bound fluorine were increased. After 20 days, the content of soil water-soluble flu-orine was increased and the content of soil exchangeable fluorine, Fe/Mn oxide-bound fluorine and organic matter-bound fluorine were re-duced. The effect on water-soluble fluorine and exchangeable fluorine increased with time and the application rate of nitrogen. The content of water-soluble fluorine in tea garden soil had a moderately positive correlation with the application rate of nitrogen while the content of ex-changeable fluorine had a moderately or highly negative correlation with the application rate of nitrogen. The content of water-soluble fluorine had a quite highly negative correlation with the soil pH(P<0.01), but the content of exchangeable fluorine had a moderately or highly neg-ative correlation with the soil pH (P<0.01). Therefore, nitrogen fertilizer changed the soil pH during its form transformation and thus affected the transformation and the availability of fluorine in soil.关键词
茶园土壤/氮肥/氟/赋存形态/pH值Key words
tea garden soil/nitrogen fertilizer/fluorine/combined forms/pH value分类
农业科技引用本文复制引用
张永利,廖万有,王烨军,苏有健,罗毅,宋莉,孙力..氮肥对茶园土壤氟赋存形态及转化的影响[J].农业资源与环境学报,2015,32(5):436-442,7.基金项目
现代农业产业技术体系建设专项资金项目(CARS-23-01A) （CARS-23-01A）
安徽省农业科学院院长青年创新基金项目(13B0839) （13B0839）
