| In order to understand the overall situation of soil nutrient of pineapples in Zhanjiang city Guangdong province, Nanning city Guangxi Autonomous Region and Danzhou city Hainan province, the investigation and analysis on soil nutrient of pineapples orchards were conducted.The results showed that pHof pineapples soil in Guangdong, Guangxi and Hainan were acid. The organic matter content was in a high level in Guangdong and in a low level in Guangxi and Hainan province. The average of the organic matter content of Guangdong,Guangxi and Hainan were 3.27%，1.77%, 1.93%. The Ncontent was in a medium level in Guangdong and in a low level in Guangxi and Hainan province. The average of nitrogen content of Guangdong,Guangxi and Hainan were 0.13%, 0.08%, 0.09%. The available P content was rich in all provinces, and the average of available P were 33.06, 38.4, 52.50 mg/kg. The availableK content of all provinces were in a low level, and the average were 87.50,59.29, 48.33 mg/kg. Exchangeable Ca , Mg was in a higher level. The available Cu content of Guangdong was highest, and the average was 2.43mg/kg. The available Zn content of Hainan was lowest, the average was 0.51 mg/kg. The available Mn content of Guangdong, Guangxi and Hainan was 12.00, 1.11, 3.81 mg/kg. The available Fe content of all provinces was at a higher level, and the average were 87.50, 59.29, 48.33 mg/kg. |
