海南普通野生稻原生境土壤养分状况研究

Investigation of Soil Nutrient Status of Common Wild Rice in situ in Hainan Province

为探明海南普通野生稻原生境土壤养分状况,采集了海南省不同地区普通野生稻和栽培稻土壤并进行养分测定。结果表明:海南普通野生稻原生境土壤pH、碱解氮总体适宜,全氮为极缺乏水平,有机质及其它养分含量以中等偏低水平居多。不同地区野生稻土壤除pH和全氮外,其它养分含量差异较大。在大多数地区,栽培稻土壤氮磷钾养分含量低于普通野生稻原生境。

In order to investigate the nutrient status of wild rice soil in in situ Hainan, the soil samples of wild rice and cultivated rice were collected and analyzed. The results showed that the pH and available nitrogen content in wild rice soil in situ were moderate in total in Hainan. The total nitrogen content was very deficiency, the organic matter and other nutrients content were mostly at a medium level or slightly lower. The nutrients content except the pH and total nitrogen had great difference in different area. The soil nutrients content in cultivated rice was lower than that in wild rice in in situ most areas of Hainan province.