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| 不同咖啡园土壤磷素形态特征及其有效性研究 | |
| 引用本文： | 孙燕,杨建峰,董云萍,王晓阳.不同咖啡园土壤磷素形态特征及其有效性研究[J].热带作物学报,2012,33(4):605-608. |
| 作者姓名： | 孙燕 杨建峰 董云萍 王晓阳 |
| 作者单位： | 1. 中国热带农业科学院香料饮料研究所 海南万宁 571533 2. 农业部香辛饮料作物遗传资源利用重点实验室 海南万宁 571533 3. 海南省热带香辛饮料作物遗传改良与品质调控重点实验室 海南万宁 571533 |
| 基金项目： | 公益性行业科研专项资金项目（No. 200903024），国家星火计划项目（No. 2011GA800002）。 |
| 摘 要： | 对不同咖啡园土壤磷素形态进行分析研究，结果表明：土壤磷素以无机磷为主，无机磷中以O-P居多，约占无机磷总量的54.63％；有机磷中以中活性有机磷居多，约占有机磷总量的70.14％；随种植年限增加，土壤全磷含量差异显著，但变化趋势不明显，有效磷、Al-P和Fe-P含量呈显著上升趋势，有机磷总量、中活性有机磷、中稳性有机磷、高稳性有机磷呈显著下降趋势；Ca-P、Fe-P、Al-P与有效磷呈显著或极显著正相关，磷素大量积累时主要以增加无机磷组分中有效性较高的Ca-P、Al-P和Fe-P为主。 |
| 关 键 词： | 咖啡园土壤 磷素形态 有效性 |
Soil Phosphorus Forms and Availability in Coffee Plantations |
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| SUN Yan,YANG Jianfeng,DONG Yunping and WANG Xiaoyang.Soil Phosphorus Forms and Availability in Coffee Plantations[J].Chinese Journal of Tropical Crops,2012,33(4):605-608. | |
| Authors: | SUN Yan YANG Jianfeng DONG Yunping and WANG Xiaoyang |
| Institution: | Spice and Beverage Crops Research Institute, Chinese Academy of Tropical Agricultural Science / Key Laboratory of Genetic Resources Utilization of Spice and Beverage Crops, Ministry of Agriculture / Hainan Provincial Key Laboratory of Genetic Improvement;Spice and Beverage Crops Research Institute, Chinese Academy of Tropical Agricultural Science / Key Laboratory of Genetic Resources Utilization of Spice and Beverage Crops, Ministry of Agriculture / Hainan Provincial Key Laboratory of Genetic Improvement;Spice and Beverage Crops Research Institute, Chinese Academy of Tropical Agricultural Science / Key Laboratory of Genetic Resources Utilization of Spice and Beverage Crops, Ministry of Agriculture / Hainan Provincial Key Laboratory of Genetic Improvement;Spice and Beverage Crops Research Institute, Chinese Academy of Tropical Agricultural Science / Key Laboratory of Genetic Resources Utilization of Spice and Beverage Crops, Ministry of Agriculture / Hainan Provincial Key Laboratory of Genetic Improvement |
| Abstract: | The forms of phosphorus in coffee garden soils were studied. The results showed that the content of inorganic P was higher than organic P , O-P was the main form in the inorganic P, accounting for 54.63% of the total inorganic P. Moderately labile organic P was the main form in the organic P, accounting for 70.14% of the total organic P. With the increasing of planting years, the differences of total P content was significant, but the variation tendency of total P content was not obvious. Available P, Al-P and Fe-P increased significantly, and total organic P, moderately labile organic P, moderately resistant organic P and highly resistant organic P decreased significantly. Available P was significantly or very significantly correlated with Ca-P, Fe-P and Al-P. The largely accumulated P consisted of Ca-P, Fe-P and Al-P, which had higher availability to crop. |
| Keywords: | Coffee garden soil Forms of phosphorus Availability |
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