| 结晶有机肥对土壤磷吸咐和解吸特性的影响 |
| |
| 引用本文： | 刘义新,刘武定.结晶有机肥对土壤磷吸咐和解吸特性的影响[J].华中农业大学学报,2000,19(1):22-24. |
| |
| 作者姓名： | 刘义新 刘武定 |
| |
| 作者单位： | 1. 中国科技大学经济技术学院,合肥,230052
2. 华中农业大学资源环境与农业化学系,武汉,430070 |
| |
| 基金项目： | 国家烟草专卖局 980 177基金资助项目 |
| |
| 摘 要： | 以不同用量的结晶有机肥处理土壤，培养１月后，研究了它们对土壤磷吸附与解吸附特性的影响。结果表明结晶有机肥能降低土壤对磷的吸附，表现为施用该肥料的土壤，磷等温吸附的Ｌａｎｇｍｕｉｒ方程常数减小，土壤对磷的亲和力减弱，且随着结晶肥用量的增加，这一效应更加明显。与吸附相反，结晶有机肥能促进土壤磷的解吸，土壤磷的解吸量与结晶有机肥用量呈正相关，且起始磷浓度较低时，结晶有机肥增加磷解吸的效果吏显著。此外，研
|
| 关 键 词： | 结晶有机肥 土壤磷 吸咐－解吸 有机肥 |
| 修稿时间： | 1999-09-28 |
The Effect of Crystal
Organic Fertilizer on Adsorption-desorption
Properties of Soil Phosphorus |
| |
| Liu Yixin Liu Wuding Zhu DuanweiCheng Dongsheng.The Effect of Crystal
Organic Fertilizer on Adsorption-desorption
Properties of Soil Phosphorus[J].Journal of Huazhong Agricultural University,2000,19(1):22-24. |
| |
| Authors: | Liu Yixin Liu Wuding Zhu DuanweiCheng Dongsheng |
| |
| Institution: | Liu Yixin Liu Wuding Zhu Duanwei
Cheng Dongsheng;
(Huazhong Agricultural University, Wuhan 430070,China) |
| |
| Abstract: | The crystal organic fertilizer was applied into the experimental soil at different level and the soil was cultured for one month to study the effect of crystal organic fertilizer on adsorption desorption property of soil phosphorus. The results showed that the application of crystal organic fertilizer significantly decreased the adsorption of phosphate to the soil, and reduced constant K of the Langmuir equation as the level of crystal fertilizer was increased. The application of crystal organic fertilizer also increased the desorption of phosphate, and it had a greater effect on the desorption of phosphate adsorbed in high affinity site which was difficult to be desorbed. There was an important role in the improvement of the phosphate availability by application of the crystal fertilizer. In addition, the Olsen P of soil was significantly increased as the level of crystal fertilizer was increased. |
| |
| Keywords: | crystal organic fertilizer soil phosphate adsorption desorption Olsen P |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《华中农业大学学报》浏览原始摘要信息 |
| 点击此处可从《华中农业大学学报》下载免费的PDF全文 |
