湖南省茶园土壤硫素状况研究

对湖南省内 2 4个茶场的 110个土壤样品的表土 (0— 2 0cm)和底土 (2 0— 40cm)两个土层的有效硫含量、全硫含量、有机质含量、以及pH值进行了测定分析。研究结果表明 :湖南省茶园土壤有效硫含量较高 ,表土的有效硫含量为 6 4 8± 6 2mgS kg (范围 :12 2— 2 10 2mgS kg) ,底土的有效硫含量为 91 8± 8 4mgS kg (范围 :11 1— 2 35 1mgS kg) ,但仍有 7 3 %茶园土壤缺硫 ;0— 2 0cm土层的有效硫有向 2 0— 4

Status of Sulphur in Tea Garden Soil in Hunan Province

The contents of available sulphur，whole sulphur，organic matterand pH of 110 samples of surface soil (0—20cm) and subsoil（20—40 cm），which sampled from 24 tea plantations in Hunan Province，were analyzed. The results indicated that the contents of available sulphur in tea gardens were rather high，aver aged 64.8±6.2 mg/kg，ranging 12.2—210.2 mg/kg in surface soils，and averag ed 91 .8±8.4 mg/kg at the range from 11.1 to 235.1 mg/kg in subsoil. There were about 7.3 percent of tea garden soils in Hunan Province being S-deficient. There was a tendency that available sulphur transferred from surface soil to subsoil in tea garden. The content of available sulphur was of remarkable positive correlation to the content of whole sulphur，but remarkable negative correlation to pH and no significant correlation to the content of organic matter. The contents of both available sulphur and whole sulphur were related to soil parent materials.